Add Data2Vec for Vision in TF (#17008)
* add utilities till TFData2VecVisionLayer. * chore: pass window_size to attention layer. * feat: add TFData2VecVisionRelativePositionBias. * feat: initial implementation ready for tf data2vec. * fix: relative position bias index, table to be fixed. * chore: implementation added, tests remaining. * add: tests, other PR files. * fix: code quality. * fix: import structure in init. * chore: run make fix-copies. * chore: address PR feedback (round I). * chore: styling nit. * fix: tests due to removal of to_2tuple(). * chore: rebase with upstream main and move the test. * Update src/transformers/models/auto/modeling_tf_auto.py Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> * Update src/transformers/models/auto/modeling_tf_auto.py Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> * fix: layer call. * chore: remove from_pt=True and rerun test. * chore: remove cast and tf.divide. * chore: minor edits to the test script. * Update src/transformers/models/data2vec/modeling_tf_data2vec_vision.py Co-authored-by: Matt <Rocketknight1@users.noreply.github.com> * fix: expand() on TF tensors with broadcast_to(). * fix: test import. Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> Co-authored-by: Matt <Rocketknight1@users.noreply.github.com>
This commit is contained in:
@@ -191,7 +191,7 @@ Flax), PyTorch, and/or TensorFlow.
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| CTRL | ✅ | ❌ | ✅ | ✅ | ❌ |
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| CTRL | ✅ | ❌ | ✅ | ✅ | ❌ |
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| Data2VecAudio | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Data2VecAudio | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Data2VecText | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Data2VecText | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Data2VecVision | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Data2VecVision | ❌ | ❌ | ✅ | ✅ | ❌ |
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| DeBERTa | ✅ | ✅ | ✅ | ✅ | ❌ |
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| DeBERTa | ✅ | ✅ | ✅ | ✅ | ❌ |
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| DeBERTa-v2 | ✅ | ✅ | ✅ | ✅ | ❌ |
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| DeBERTa-v2 | ✅ | ✅ | ✅ | ✅ | ❌ |
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| Decision Transformer | ❌ | ❌ | ✅ | ❌ | ❌ |
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| Decision Transformer | ❌ | ❌ | ✅ | ❌ | ❌ |
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@@ -38,9 +38,11 @@ Tips:
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- For Data2VecText, preprocessing is identical to [`RobertaModel`], including tokenization.
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- For Data2VecText, preprocessing is identical to [`RobertaModel`], including tokenization.
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- For Data2VecVision, preprocessing is identical to [`BeitModel`], including feature extraction.
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- For Data2VecVision, preprocessing is identical to [`BeitModel`], including feature extraction.
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This model was contributed by [edugp](https://huggingface.co/edugp) and [patrickvonplaten](https://huggingface.co/patrickvonplaten)
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This model was contributed by [edugp](https://huggingface.co/edugp) and [patrickvonplaten](https://huggingface.co/patrickvonplaten).
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[sayakpaul](https://github.com/sayakpaul) contributed Data2Vec for vision in TensorFlow.
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The original code can be found [here](https://github.com/pytorch/fairseq/tree/main/examples/data2vec).
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The original code (for NLP and Speech) can be found [here](https://github.com/pytorch/fairseq/tree/main/examples/data2vec).
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The original code for vision can be found [here](https://github.com/facebookresearch/data2vec_vision/tree/main/beit).
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## Data2VecTextConfig
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## Data2VecTextConfig
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@@ -130,3 +132,13 @@ The original code can be found [here](https://github.com/pytorch/fairseq/tree/ma
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[[autodoc]] Data2VecVisionForSemanticSegmentation
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[[autodoc]] Data2VecVisionForSemanticSegmentation
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- forward
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- forward
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## TFData2VecVisionModel
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[[autodoc]] TFData2VecVisionModel
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- call
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## TFData2VecVisionForImageClassification
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[[autodoc]] TFData2VecVisionForImageClassification
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- call
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@@ -1878,6 +1878,13 @@ if is_tf_available():
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"TFCTRLPreTrainedModel",
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"TFCTRLPreTrainedModel",
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]
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]
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)
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)
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_import_structure["models.data2vec"].extend(
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[
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"TFData2VecVisionForImageClassification",
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"TFData2VecVisionModel",
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"TFData2VecVisionPreTrainedModel",
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]
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)
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_import_structure["models.deberta"].extend(
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_import_structure["models.deberta"].extend(
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[
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[
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"TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
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"TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST",
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@@ -4029,6 +4036,11 @@ if TYPE_CHECKING:
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TFCTRLModel,
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TFCTRLModel,
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TFCTRLPreTrainedModel,
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TFCTRLPreTrainedModel,
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)
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)
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from .models.data2vec import (
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TFData2VecVisionForImageClassification,
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TFData2VecVisionModel,
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TFData2VecVisionPreTrainedModel,
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)
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from .models.deberta import (
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from .models.deberta import (
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TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
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TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST,
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TFDebertaForMaskedLM,
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TFDebertaForMaskedLM,
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@@ -37,6 +37,7 @@ TF_MODEL_MAPPING_NAMES = OrderedDict(
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("roformer", "TFRoFormerModel"),
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("roformer", "TFRoFormerModel"),
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("convbert", "TFConvBertModel"),
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("convbert", "TFConvBertModel"),
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("convnext", "TFConvNextModel"),
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("convnext", "TFConvNextModel"),
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("data2vec-vision", "TFData2VecVisionModel"),
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("led", "TFLEDModel"),
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("led", "TFLEDModel"),
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("lxmert", "TFLxmertModel"),
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("lxmert", "TFLxmertModel"),
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("mt5", "TFMT5Model"),
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("mt5", "TFMT5Model"),
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@@ -163,6 +164,7 @@ TF_MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING_NAMES = OrderedDict(
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# Model for Image-classsification
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# Model for Image-classsification
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("vit", "TFViTForImageClassification"),
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("vit", "TFViTForImageClassification"),
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("convnext", "TFConvNextForImageClassification"),
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("convnext", "TFConvNextForImageClassification"),
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("data2vec-vision", "TFData2VecVisionForImageClassification"),
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]
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]
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)
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)
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@@ -18,6 +18,8 @@
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from typing import TYPE_CHECKING
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from typing import TYPE_CHECKING
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from transformers.utils.import_utils import is_tf_available
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from ...utils import _LazyModule, is_torch_available
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from ...utils import _LazyModule, is_torch_available
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@@ -68,6 +70,13 @@ if is_torch_available():
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"Data2VecVisionPreTrainedModel",
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"Data2VecVisionPreTrainedModel",
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]
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]
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if is_tf_available():
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_import_structure["modeling_tf_data2vec_vision"] = [
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"TFData2VecVisionForImageClassification",
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"TFData2VecVisionModel",
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"TFData2VecVisionPreTrainedModel",
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]
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if TYPE_CHECKING:
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if TYPE_CHECKING:
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from .configuration_data2vec_audio import DATA2VEC_AUDIO_PRETRAINED_CONFIG_ARCHIVE_MAP, Data2VecAudioConfig
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from .configuration_data2vec_audio import DATA2VEC_AUDIO_PRETRAINED_CONFIG_ARCHIVE_MAP, Data2VecAudioConfig
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from .configuration_data2vec_text import (
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from .configuration_data2vec_text import (
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@@ -110,6 +119,12 @@ if TYPE_CHECKING:
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Data2VecVisionModel,
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Data2VecVisionModel,
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Data2VecVisionPreTrainedModel,
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Data2VecVisionPreTrainedModel,
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)
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)
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if is_tf_available():
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from .modeling_tf_data2vec_vision import (
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TFData2VecVisionForImageClassification,
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TFData2VecVisionModel,
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TFData2VecVisionPreTrainedModel,
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)
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else:
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else:
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import sys
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import sys
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979
src/transformers/models/data2vec/modeling_tf_data2vec_vision.py
Normal file
979
src/transformers/models/data2vec/modeling_tf_data2vec_vision.py
Normal file
@@ -0,0 +1,979 @@
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# coding=utf-8
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# Copyright 2022 Meta Platforms and The HuggingFace Inc. team. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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""" TF 2.0 Data2Vec Vision model."""
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import collections.abc
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import math
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from dataclasses import dataclass
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from typing import Dict, Optional, Tuple, Union
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import numpy as np
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import tensorflow as tf
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from transformers.tf_utils import shape_list, stable_softmax
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from ...activations_tf import get_tf_activation
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from ...modeling_tf_outputs import TFBaseModelOutput, TFBaseModelOutputWithPooling, TFSequenceClassifierOutput
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from ...modeling_tf_utils import (
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TFModelInputType,
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TFPreTrainedModel,
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TFSequenceClassificationLoss,
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get_initializer,
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keras_serializable,
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unpack_inputs,
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)
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from ...utils import add_code_sample_docstrings, add_start_docstrings, add_start_docstrings_to_model_forward, logging
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from .configuration_data2vec_vision import Data2VecVisionConfig
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logger = logging.get_logger(__name__)
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# General docstring
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_CONFIG_FOR_DOC = "Data2VecVisionConfig"
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_FEAT_EXTRACTOR_FOR_DOC = "BeitFeatureExtractor"
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# Base docstring
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_CHECKPOINT_FOR_DOC = "facebook/data2vec-vision-base"
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_EXPECTED_OUTPUT_SHAPE = [1, 197, 768]
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# Image classification docstring
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_IMAGE_CLASS_CHECKPOINT = "facebook/data2vec-vision-base-ft1k"
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_IMAGE_CLASS_EXPECTED_OUTPUT = "remote control, remote"
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DATA2VEC_VISION_PRETRAINED_MODEL_ARCHIVE_LIST = [
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"facebook/data2vec-vision-base-ft1k",
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# See all Data2VecVision models at https://huggingface.co/models?filter=data2vec-vision
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]
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@dataclass
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class TFData2VecVisionModelOutputWithPooling(TFBaseModelOutputWithPooling):
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"""
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Class for outputs of [`TFData2VecVisionModel`].
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Args:
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last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`):
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Sequence of hidden-states at the output of the last layer of the model.
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pooler_output (`tf.Tensor` of shape `(batch_size, hidden_size)`):
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Average of the last layer hidden states of the patch tokens (excluding the *[CLS]* token) if
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*config.use_mean_pooling* is set to True. If set to False, then the final hidden state of the *[CLS]* token
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will be returned.
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hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`):
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Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape
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`(batch_size, sequence_length, hidden_size)`.
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Hidden-states of the model at the output of each layer plus the initial embedding outputs.
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attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`):
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Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length,
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sequence_length)`.
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Attentions weights after the attention softmax, used to compute the weighted average in the self-attention
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heads.
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"""
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last_hidden_state: tf.Tensor = None
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pooler_output: tf.Tensor = None
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hidden_states: Optional[Tuple[tf.Tensor]] = None
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attentions: Optional[Tuple[tf.Tensor]] = None
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class TFDropPath(tf.keras.layers.Layer):
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"""Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
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References:
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(1) github.com:rwightman/pytorch-image-models
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"""
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def __init__(self, drop_path, **kwargs):
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super().__init__(**kwargs)
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self.drop_path = drop_path
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def call(self, x, training=None):
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if training:
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keep_prob = 1 - self.drop_path
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shape = (tf.shape(x)[0],) + (1,) * (len(tf.shape(x)) - 1)
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random_tensor = keep_prob + tf.random.uniform(shape, 0, 1)
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random_tensor = tf.floor(random_tensor)
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return (x / keep_prob) * random_tensor
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return x
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# Based on timm implementation, which can be found here:
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# https://github.com/rwightman/pytorch-image-models/blob/master/timm/models/vision_transformer.py
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class TFData2VecVisionEmbeddings(tf.keras.layers.Layer):
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"""
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Construct the CLS token, position and patch embeddings. Optionally, also the mask token.
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"""
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def __init__(self, config: Data2VecVisionConfig, **kwargs):
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super().__init__(**kwargs)
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self.config = config
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self.patch_embeddings = TFPatchEmbeddings(
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config=config, image_size=config.image_size, patch_size=config.patch_size, name="patch_embeddings"
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)
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self.num_patches = self.patch_embeddings.num_patches
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self.config = config
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self.dropout = tf.keras.layers.Dropout(config.hidden_dropout_prob)
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def build(self, input_shape: tf.TensorShape):
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self.cls_token = self.add_weight(
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shape=(1, 1, self.config.hidden_size),
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initializer=tf.random_normal_initializer(stddev=self.config.initializer_range),
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trainable=True,
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name="cls_token",
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)
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if self.config.use_mask_token:
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self.mask_token = self.add_weight(
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shape=(1, 1, self.config.hidden_size),
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initializer=tf.random_normal_initializer(stddev=self.config.initializer_range),
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trainable=True,
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name="mask_token",
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)
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else:
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self.mask_token = None
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if self.config.use_absolute_position_embeddings:
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self.position_embeddings = self.add_weight(
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shape=(1, self.num_patches + 1, self.config.hidden_size),
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initializer=tf.random_normal_initializer(stddev=self.config.initializer_range),
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trainable=True,
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name="position_embeddings",
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)
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else:
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self.position_embeddings = None
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super().build(input_shape)
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def call(self, pixel_values: tf.Tensor, bool_masked_pos: Optional[tf.Tensor] = None) -> tf.Tensor:
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embeddings = self.patch_embeddings(pixel_values)
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batch_size, seq_len, projection_dim = shape_list(embeddings)
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cls_tokens = tf.tile(self.cls_token, (batch_size, 1, 1))
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if bool_masked_pos is not None:
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mask_tokens = tf.broadcast_to(self.mask_token, (batch_size, seq_len, projection_dim))
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# replace the masked visual tokens by mask_tokens
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w = bool_masked_pos[..., None]
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w = tf.cast(w, mask_tokens.dtype)
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# since TF doesn't support eager tensor assignment
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embeddings = embeddings * (1 - w) + mask_tokens * w
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embeddings = tf.concat([cls_tokens, embeddings], axis=1)
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if self.position_embeddings is not None:
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embeddings = embeddings + self.position_embeddings
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embeddings = self.dropout(embeddings)
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return embeddings
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# Based on timm implementation, which can be found here:
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|
# https://github.com/rwightman/pytorch-image-models/blob/master/timm/models/vision_transformer.py
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class TFPatchEmbeddings(tf.keras.layers.Layer):
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|
"""
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|
Image to Patch Embedding.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, image_size: int = 224, patch_size: int = 16, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
self.config = config
|
||||||
|
|
||||||
|
image_size = (
|
||||||
|
config.image_size
|
||||||
|
if isinstance(config.image_size, collections.abc.Iterable)
|
||||||
|
else (config.image_size, config.image_size)
|
||||||
|
)
|
||||||
|
patch_size = (
|
||||||
|
config.patch_size
|
||||||
|
if isinstance(config.patch_size, collections.abc.Iterable)
|
||||||
|
else (config.patch_size, config.patch_size)
|
||||||
|
)
|
||||||
|
num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
|
||||||
|
patch_shape = (image_size[0] // patch_size[0], image_size[1] // patch_size[1])
|
||||||
|
self.image_size = image_size
|
||||||
|
self.patch_size = patch_size
|
||||||
|
self.num_patches = num_patches
|
||||||
|
self.patch_shape = patch_shape
|
||||||
|
self.num_channels = config.num_channels
|
||||||
|
self.embed_dim = config.hidden_size
|
||||||
|
|
||||||
|
self.projection = tf.keras.layers.Conv2D(
|
||||||
|
filters=self.embed_dim,
|
||||||
|
kernel_size=self.patch_size,
|
||||||
|
strides=self.patch_size,
|
||||||
|
padding="valid",
|
||||||
|
data_format="channels_last",
|
||||||
|
kernel_initializer="glorot_uniform", # following torch.nn.Linear
|
||||||
|
bias_initializer="zeros",
|
||||||
|
name="projection",
|
||||||
|
)
|
||||||
|
|
||||||
|
def call(self, pixel_values: tf.Tensor, training: bool = False) -> tf.Tensor:
|
||||||
|
batch_size, num_channels, height, width = shape_list(pixel_values)
|
||||||
|
if getattr(height, "numpy", None) and getattr(width, "numpy", None):
|
||||||
|
if height != self.image_size[0] or width != self.image_size[1]:
|
||||||
|
raise ValueError(
|
||||||
|
f"Input image size ({height}*{width}) doesn't match model ({self.image_size[0]}*{self.image_size[1]})."
|
||||||
|
)
|
||||||
|
|
||||||
|
# When running on CPU, `tf.keras.layers.Conv2D` doesn't support `NCHW` format.
|
||||||
|
# So change the input format from `NCHW` to `NHWC`.
|
||||||
|
# shape = (batch_size, in_height, in_width, in_channels=num_channels)
|
||||||
|
pixel_values = tf.transpose(pixel_values, perm=(0, 2, 3, 1))
|
||||||
|
|
||||||
|
projection = self.projection(pixel_values)
|
||||||
|
|
||||||
|
# Change the 2D spatial dimensions to a single temporal dimension.
|
||||||
|
# shape = (batch_size, num_patches, out_channels=embed_dim)
|
||||||
|
num_patches = (width // self.patch_size[1]) * (height // self.patch_size[0])
|
||||||
|
|
||||||
|
return tf.reshape(tensor=projection, shape=(batch_size, num_patches, -1))
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionSelfAttention(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, window_size: Optional[tuple] = None, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
if config.hidden_size % config.num_attention_heads != 0:
|
||||||
|
raise ValueError(
|
||||||
|
f"The hidden size ({config.hidden_size}) is not a multiple of the number "
|
||||||
|
f"of attention heads ({config.num_attention_heads})"
|
||||||
|
)
|
||||||
|
|
||||||
|
self.num_attention_heads = config.num_attention_heads
|
||||||
|
self.attention_head_size = int(config.hidden_size / config.num_attention_heads)
|
||||||
|
self.all_head_size = self.num_attention_heads * self.attention_head_size
|
||||||
|
self.sqrt_att_head_size = math.sqrt(self.attention_head_size)
|
||||||
|
|
||||||
|
self.query = tf.keras.layers.Dense(
|
||||||
|
units=self.all_head_size, kernel_initializer=get_initializer(config.initializer_range), name="query"
|
||||||
|
)
|
||||||
|
self.key = tf.keras.layers.Dense(
|
||||||
|
units=self.all_head_size,
|
||||||
|
kernel_initializer=get_initializer(config.initializer_range),
|
||||||
|
name="key",
|
||||||
|
use_bias=False,
|
||||||
|
)
|
||||||
|
self.value = tf.keras.layers.Dense(
|
||||||
|
units=self.all_head_size, kernel_initializer=get_initializer(config.initializer_range), name="value"
|
||||||
|
)
|
||||||
|
self.dropout = tf.keras.layers.Dropout(rate=config.attention_probs_dropout_prob)
|
||||||
|
|
||||||
|
if window_size:
|
||||||
|
self.relative_position_bias = TFData2VecVisionRelativePositionBias(
|
||||||
|
config, window_size=window_size, name="relative_position_bias"
|
||||||
|
)
|
||||||
|
else:
|
||||||
|
self.relative_position_bias = None
|
||||||
|
|
||||||
|
def transpose_for_scores(self, tensor: tf.Tensor, batch_size: int) -> tf.Tensor:
|
||||||
|
# Reshape from [batch_size, seq_length, all_head_size] to [batch_size, seq_length, num_attention_heads, attention_head_size]
|
||||||
|
tensor = tf.reshape(tensor=tensor, shape=(batch_size, -1, self.num_attention_heads, self.attention_head_size))
|
||||||
|
|
||||||
|
# Transpose the tensor from [batch_size, seq_length, num_attention_heads, attention_head_size] to [batch_size, num_attention_heads, seq_length, attention_head_size]
|
||||||
|
return tf.transpose(tensor, perm=[0, 2, 1, 3])
|
||||||
|
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
hidden_states: tf.Tensor,
|
||||||
|
head_mask: tf.Tensor,
|
||||||
|
output_attentions: bool,
|
||||||
|
relative_position_bias: Optional["TFData2VecVisionRelativePositionBias"] = None,
|
||||||
|
training: bool = False,
|
||||||
|
) -> Tuple[tf.Tensor]:
|
||||||
|
batch_size = shape_list(hidden_states)[0]
|
||||||
|
mixed_query_layer = self.query(inputs=hidden_states)
|
||||||
|
mixed_key_layer = self.key(inputs=hidden_states)
|
||||||
|
mixed_value_layer = self.value(inputs=hidden_states)
|
||||||
|
query_layer = self.transpose_for_scores(mixed_query_layer, batch_size)
|
||||||
|
key_layer = self.transpose_for_scores(mixed_key_layer, batch_size)
|
||||||
|
value_layer = self.transpose_for_scores(mixed_value_layer, batch_size)
|
||||||
|
|
||||||
|
# Take the dot product between "query" and "key" to get the raw attention scores.
|
||||||
|
# (batch size, num_heads, seq_len_q, seq_len_k)
|
||||||
|
attention_scores = tf.matmul(query_layer, key_layer, transpose_b=True)
|
||||||
|
attention_scores = attention_scores / self.sqrt_att_head_size
|
||||||
|
|
||||||
|
# Add relative position bias if present.
|
||||||
|
if self.relative_position_bias is not None:
|
||||||
|
# Passing `0.0` to the `relative_position_bias()` layer because otherwise Keras
|
||||||
|
# might complain about `Layer.call()` not being invoked properly. In this case this input
|
||||||
|
# i.e., 0.0 is not going to be used in any calculations so we're safe.
|
||||||
|
attention_scores = attention_scores + self.relative_position_bias(0.0)[None, ...]
|
||||||
|
|
||||||
|
# Add shared relative position bias if provided.
|
||||||
|
if relative_position_bias is not None:
|
||||||
|
attention_scores = attention_scores + relative_position_bias
|
||||||
|
|
||||||
|
# Normalize the attention scores to probabilities.
|
||||||
|
attention_probs = stable_softmax(logits=attention_scores, axis=-1)
|
||||||
|
|
||||||
|
# This is actually dropping out entire tokens to attend to, which might
|
||||||
|
# seem a bit unusual, but is taken from the original Transformer paper.
|
||||||
|
attention_probs = self.dropout(inputs=attention_probs, training=training)
|
||||||
|
|
||||||
|
# Mask heads if we want to
|
||||||
|
if head_mask is not None:
|
||||||
|
attention_probs = tf.multiply(attention_probs, head_mask)
|
||||||
|
|
||||||
|
attention_output = tf.matmul(attention_probs, value_layer)
|
||||||
|
attention_output = tf.transpose(attention_output, perm=[0, 2, 1, 3])
|
||||||
|
|
||||||
|
# (batch_size, seq_len_q, all_head_size)
|
||||||
|
attention_output = tf.reshape(tensor=attention_output, shape=(batch_size, -1, self.all_head_size))
|
||||||
|
outputs = (attention_output, attention_probs) if output_attentions else (attention_output,)
|
||||||
|
|
||||||
|
return outputs
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionSelfOutput(tf.keras.layers.Layer):
|
||||||
|
"""
|
||||||
|
The residual connection is defined in TFData2VecVisionLayer instead of here (as is the case with other models), due
|
||||||
|
to the layernorm applied before each block.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
self.dense = tf.keras.layers.Dense(
|
||||||
|
units=config.hidden_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
|
||||||
|
)
|
||||||
|
self.dropout = tf.keras.layers.Dropout(rate=config.hidden_dropout_prob)
|
||||||
|
|
||||||
|
def call(self, hidden_states: tf.Tensor, input_tensor: tf.Tensor, gamma=None, training: bool = False) -> tf.Tensor:
|
||||||
|
hidden_states = self.dense(inputs=hidden_states)
|
||||||
|
hidden_states = self.dropout(inputs=hidden_states, training=training)
|
||||||
|
|
||||||
|
return hidden_states
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionAttention(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, window_size: Optional[tuple] = None, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
self.attention = TFData2VecVisionSelfAttention(config, window_size=window_size, name="attention")
|
||||||
|
self.dense_output = TFData2VecVisionSelfOutput(config, name="output")
|
||||||
|
|
||||||
|
def prune_heads(self, heads):
|
||||||
|
raise NotImplementedError
|
||||||
|
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
input_tensor: tf.Tensor,
|
||||||
|
head_mask: tf.Tensor,
|
||||||
|
output_attentions: bool,
|
||||||
|
relative_position_bias: Optional["TFData2VecVisionRelativePositionBias"] = None,
|
||||||
|
training: bool = False,
|
||||||
|
) -> Tuple[tf.Tensor]:
|
||||||
|
self_outputs = self.attention(
|
||||||
|
hidden_states=input_tensor,
|
||||||
|
head_mask=head_mask,
|
||||||
|
output_attentions=output_attentions,
|
||||||
|
relative_position_bias=relative_position_bias,
|
||||||
|
training=training,
|
||||||
|
)
|
||||||
|
attention_output = self.dense_output(
|
||||||
|
hidden_states=self_outputs[0], input_tensor=input_tensor, training=training
|
||||||
|
)
|
||||||
|
outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
|
||||||
|
|
||||||
|
return outputs
|
||||||
|
|
||||||
|
|
||||||
|
# Copied from transformers.models.vit.modeling_tf_vit.TFViTIntermediate with ViT->Data2VecVision
|
||||||
|
class TFData2VecVisionIntermediate(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
self.dense = tf.keras.layers.Dense(
|
||||||
|
units=config.intermediate_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
|
||||||
|
)
|
||||||
|
|
||||||
|
if isinstance(config.hidden_act, str):
|
||||||
|
self.intermediate_act_fn = get_tf_activation(config.hidden_act)
|
||||||
|
else:
|
||||||
|
self.intermediate_act_fn = config.hidden_act
|
||||||
|
|
||||||
|
def call(self, hidden_states: tf.Tensor) -> tf.Tensor:
|
||||||
|
hidden_states = self.dense(inputs=hidden_states)
|
||||||
|
hidden_states = self.intermediate_act_fn(hidden_states)
|
||||||
|
|
||||||
|
return hidden_states
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionOutput(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
self.dense = tf.keras.layers.Dense(
|
||||||
|
units=config.hidden_size, kernel_initializer=get_initializer(config.initializer_range), name="dense"
|
||||||
|
)
|
||||||
|
self.dropout = tf.keras.layers.Dropout(rate=config.hidden_dropout_prob)
|
||||||
|
|
||||||
|
def call(self, hidden_states: tf.Tensor, training: bool = False) -> tf.Tensor:
|
||||||
|
hidden_states = self.dense(inputs=hidden_states)
|
||||||
|
hidden_states = self.dropout(inputs=hidden_states, training=training)
|
||||||
|
|
||||||
|
return hidden_states
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionLayer(tf.keras.layers.Layer):
|
||||||
|
"""This corresponds to the Block class in the timm implementation."""
|
||||||
|
|
||||||
|
def __init__(
|
||||||
|
self, config: Data2VecVisionConfig, window_size: Optional[tuple] = None, drop_path_rate: float = 0.0, **kwargs
|
||||||
|
):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
self.config = config
|
||||||
|
|
||||||
|
self.attention = TFData2VecVisionAttention(config, window_size=window_size, name="attention")
|
||||||
|
self.intermediate = TFData2VecVisionIntermediate(config, name="intermediate")
|
||||||
|
self.data2vec_output = TFData2VecVisionOutput(config, name="output")
|
||||||
|
|
||||||
|
self.layernorm_before = tf.keras.layers.LayerNormalization(
|
||||||
|
epsilon=config.layer_norm_eps, name="layernorm_before"
|
||||||
|
)
|
||||||
|
self.layernorm_after = tf.keras.layers.LayerNormalization(
|
||||||
|
epsilon=config.layer_norm_eps, name="layernorm_after"
|
||||||
|
)
|
||||||
|
# Using `layers.Activation` instead of `tf.identity` to better control `training`
|
||||||
|
# behaviour.
|
||||||
|
self.drop_path = (
|
||||||
|
TFDropPath(drop_path_rate, name="drop_path")
|
||||||
|
if drop_path_rate > 0.0
|
||||||
|
else tf.keras.layers.Activation("linear", name="drop_path")
|
||||||
|
)
|
||||||
|
self.init_values = config.layer_scale_init_value
|
||||||
|
|
||||||
|
def build(self, input_shape: tf.TensorShape):
|
||||||
|
if self.init_values > 0:
|
||||||
|
self.lambda_1 = self.add_weight(
|
||||||
|
shape=(self.config.hidden_size),
|
||||||
|
initializer="ones",
|
||||||
|
trainable=True,
|
||||||
|
name="lambda_1",
|
||||||
|
)
|
||||||
|
self.lambda_2 = self.add_weight(
|
||||||
|
shape=(self.config.hidden_size),
|
||||||
|
initializer="ones",
|
||||||
|
trainable=True,
|
||||||
|
name="lambda_2",
|
||||||
|
)
|
||||||
|
self.lambda_1.assign(self.init_values * tf.ones((self.config.hidden_size)))
|
||||||
|
self.lambda_2.assign(self.init_values * tf.ones((self.config.hidden_size)))
|
||||||
|
else:
|
||||||
|
self.lambda_1, self.lambda_2 = None, None
|
||||||
|
|
||||||
|
super().build(input_shape)
|
||||||
|
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
hidden_states: tf.Tensor,
|
||||||
|
head_mask: tf.Tensor,
|
||||||
|
output_attentions: bool,
|
||||||
|
relative_position_bias: Optional["TFData2VecVisionRelativePositionBias"] = None,
|
||||||
|
training: bool = False,
|
||||||
|
) -> Tuple[tf.Tensor]:
|
||||||
|
self_attention_outputs = self.attention(
|
||||||
|
# in Data2VecVision, layernorm is applied before self-attention
|
||||||
|
input_tensor=self.layernorm_before(inputs=hidden_states),
|
||||||
|
head_mask=head_mask,
|
||||||
|
output_attentions=output_attentions,
|
||||||
|
relative_position_bias=relative_position_bias,
|
||||||
|
training=training,
|
||||||
|
)
|
||||||
|
attention_output = self_attention_outputs[0]
|
||||||
|
outputs = self_attention_outputs[1:] # add self attentions if we output attention weights
|
||||||
|
|
||||||
|
# apply lambda_1 if present
|
||||||
|
if self.lambda_1 is not None:
|
||||||
|
attention_output = self.lambda_1 * attention_output
|
||||||
|
|
||||||
|
# first residual connection
|
||||||
|
hidden_states = self.drop_path(attention_output) + hidden_states
|
||||||
|
|
||||||
|
# in Data2VecVision, layernorm is also applied after self-attention
|
||||||
|
layer_output = self.layernorm_after(hidden_states)
|
||||||
|
|
||||||
|
layer_output = self.intermediate(layer_output)
|
||||||
|
layer_output = self.data2vec_output(layer_output)
|
||||||
|
|
||||||
|
if self.lambda_2 is not None:
|
||||||
|
layer_output = self.lambda_2 * layer_output
|
||||||
|
|
||||||
|
# second residual connection
|
||||||
|
layer_output = self.drop_path(layer_output) + hidden_states
|
||||||
|
|
||||||
|
outputs = (layer_output,) + outputs
|
||||||
|
|
||||||
|
return outputs
|
||||||
|
|
||||||
|
|
||||||
|
# Taken and modified from here:
|
||||||
|
# https://github.com/leondgarse/keras_cv_attention_models/blob/main/keras_cv_attention_models/beit/beit.py#L28
|
||||||
|
class TFData2VecVisionRelativePositionBias(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, window_size: tuple, **kwargs) -> None:
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
self.config = config
|
||||||
|
|
||||||
|
self.window_size = window_size
|
||||||
|
# +3 for cls_token_pos_len
|
||||||
|
# window_size can be something like (14, 14)
|
||||||
|
self.num_relative_distance = (2 * window_size[0] - 1) * (2 * window_size[1] - 1) + 3
|
||||||
|
|
||||||
|
self.relative_position_index = self.get_position_index()
|
||||||
|
|
||||||
|
def build(self, input_shape):
|
||||||
|
self.relative_position_bias_table = self.add_weight(
|
||||||
|
shape=(self.num_relative_distance, self.config.num_attention_heads),
|
||||||
|
initializer="zeros",
|
||||||
|
trainable=True,
|
||||||
|
name="relative_position_bias_table",
|
||||||
|
) # [2*Wh-1 * 2*Ww-1, nH]
|
||||||
|
# cls to token & token 2 cls & cls to cls
|
||||||
|
|
||||||
|
super().build(input_shape)
|
||||||
|
|
||||||
|
def get_position_index(self):
|
||||||
|
# get pair-wise relative position index for each token inside the window
|
||||||
|
xx, yy = tf.meshgrid(range(self.window_size[0]), range(self.window_size[1]))
|
||||||
|
coords = tf.stack([yy, xx], axis=0) # [2, Wh, Ww]
|
||||||
|
coords_flatten = tf.reshape(coords, [2, -1]) # [2, Wh*Ww]
|
||||||
|
|
||||||
|
relative_coords = coords_flatten[:, :, None] - coords_flatten[:, None, :] # [2, Wh*Ww, Wh*Ww]
|
||||||
|
relative_coords = tf.transpose(relative_coords, perm=[1, 2, 0]) # [Wh*Ww, Wh*Ww, 2]
|
||||||
|
|
||||||
|
xx = (relative_coords[:, :, 0] + self.window_size[0] - 1) * (2 * self.window_size[1] - 1)
|
||||||
|
yy = relative_coords[:, :, 1] + self.window_size[1] - 1
|
||||||
|
relative_coords = tf.stack([xx, yy], axis=-1)
|
||||||
|
|
||||||
|
relative_position_index = tf.reduce_sum(relative_coords, axis=-1) # [Wh*Ww, Wh*Ww]
|
||||||
|
|
||||||
|
top = tf.ones((1, relative_position_index.shape[1]), dtype=relative_position_index.dtype) * (
|
||||||
|
self.num_relative_distance - 3
|
||||||
|
)
|
||||||
|
left = tf.ones((relative_position_index.shape[0], 1), dtype=relative_position_index.dtype) * (
|
||||||
|
self.num_relative_distance - 2
|
||||||
|
)
|
||||||
|
corner = tf.ones((1, 1), dtype=relative_position_index.dtype) * (self.num_relative_distance - 1)
|
||||||
|
|
||||||
|
left_corner = tf.concat([corner, left], axis=0)
|
||||||
|
relative_position_index = tf.concat([top, relative_position_index], axis=0)
|
||||||
|
relative_position_index = tf.concat([left_corner, relative_position_index], axis=1) # [Wh*Ww + 1, Wh*Ww + 1]
|
||||||
|
return relative_position_index
|
||||||
|
|
||||||
|
def call(self, inputs=None) -> tf.Tensor:
|
||||||
|
relative_position_bias = tf.gather(self.relative_position_bias_table, self.relative_position_index, axis=0)
|
||||||
|
return tf.transpose(relative_position_bias, [2, 0, 1])
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionEncoder(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, window_size: Optional[tuple] = None, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
self.config = config
|
||||||
|
if config.use_shared_relative_position_bias:
|
||||||
|
self.relative_position_bias = TFData2VecVisionRelativePositionBias(
|
||||||
|
config, window_size=window_size, name="relative_position_bias"
|
||||||
|
)
|
||||||
|
else:
|
||||||
|
self.relative_position_bias = None
|
||||||
|
|
||||||
|
# stochastic depth decay rule
|
||||||
|
dpr = [x for x in tf.linspace(0.0, config.drop_path_rate, config.num_hidden_layers)]
|
||||||
|
self.layer = [
|
||||||
|
TFData2VecVisionLayer(
|
||||||
|
config,
|
||||||
|
window_size=window_size if config.use_relative_position_bias else None,
|
||||||
|
drop_path_rate=dpr[i],
|
||||||
|
name=f"layer_._{i}",
|
||||||
|
)
|
||||||
|
for i in range(config.num_hidden_layers)
|
||||||
|
]
|
||||||
|
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
hidden_states: tf.Tensor,
|
||||||
|
head_mask: Optional[tf.Tensor] = None,
|
||||||
|
output_attentions: bool = False,
|
||||||
|
output_hidden_states: bool = False,
|
||||||
|
return_dict: bool = True,
|
||||||
|
) -> Union[tuple, TFBaseModelOutput]:
|
||||||
|
all_hidden_states = () if output_hidden_states else None
|
||||||
|
all_self_attentions = () if output_attentions else None
|
||||||
|
|
||||||
|
for i, layer_module in enumerate(self.layer):
|
||||||
|
if output_hidden_states:
|
||||||
|
all_hidden_states = all_hidden_states + (hidden_states,)
|
||||||
|
|
||||||
|
layer_head_mask = head_mask[i] if head_mask is not None else None
|
||||||
|
# Passing `0.0` to the `relative_position_bias()` layer because otherwise Keras
|
||||||
|
# might complain about `Layer.call()` not being invoked properly. In this case this input
|
||||||
|
# i.e., 0.0 is not going to be used in any calculations so we're safe.
|
||||||
|
relative_position_bias = (
|
||||||
|
self.relative_position_bias(0.0) if self.relative_position_bias is not None else None
|
||||||
|
)
|
||||||
|
layer_outputs = layer_module(hidden_states, layer_head_mask, output_attentions, relative_position_bias)
|
||||||
|
|
||||||
|
hidden_states = layer_outputs[0]
|
||||||
|
|
||||||
|
if output_attentions:
|
||||||
|
all_self_attentions = all_self_attentions + (layer_outputs[1],)
|
||||||
|
|
||||||
|
if output_hidden_states:
|
||||||
|
all_hidden_states = all_hidden_states + (hidden_states,)
|
||||||
|
|
||||||
|
if not return_dict:
|
||||||
|
return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
|
||||||
|
|
||||||
|
return TFBaseModelOutput(
|
||||||
|
last_hidden_state=hidden_states,
|
||||||
|
hidden_states=all_hidden_states,
|
||||||
|
attentions=all_self_attentions,
|
||||||
|
)
|
||||||
|
|
||||||
|
|
||||||
|
@keras_serializable
|
||||||
|
class TFData2VecVisionMainLayer(tf.keras.layers.Layer):
|
||||||
|
config_class = Data2VecVisionConfig
|
||||||
|
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, add_pooling_layer: bool = True, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
|
||||||
|
self.config = config
|
||||||
|
self.add_pooling_layer = add_pooling_layer
|
||||||
|
|
||||||
|
self.embeddings = TFData2VecVisionEmbeddings(config, name="embeddings")
|
||||||
|
self.encoder = TFData2VecVisionEncoder(
|
||||||
|
config, window_size=self.embeddings.patch_embeddings.patch_shape, name="encoder"
|
||||||
|
)
|
||||||
|
self.layernorm = (
|
||||||
|
tf.identity
|
||||||
|
if config.use_mean_pooling
|
||||||
|
else tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layernorm")
|
||||||
|
)
|
||||||
|
|
||||||
|
# We are setting the `data_format` like so because from here on we will revert to the
|
||||||
|
# NCHW output format
|
||||||
|
self.pooler = TFData2VecVisionPooler(config, name="pooler") if add_pooling_layer else None
|
||||||
|
|
||||||
|
def get_input_embeddings(self) -> tf.keras.layers.Layer:
|
||||||
|
return self.embeddings.patch_embeddings
|
||||||
|
|
||||||
|
def _prune_heads(self, heads_to_prune):
|
||||||
|
"""
|
||||||
|
Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
|
||||||
|
class PreTrainedModel
|
||||||
|
"""
|
||||||
|
raise NotImplementedError
|
||||||
|
|
||||||
|
@unpack_inputs
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
pixel_values: Optional[tf.Tensor] = None,
|
||||||
|
bool_masked_pos: Optional[tf.Tensor] = None,
|
||||||
|
head_mask: Optional[tf.Tensor] = None,
|
||||||
|
output_attentions: Optional[bool] = None,
|
||||||
|
output_hidden_states: Optional[bool] = None,
|
||||||
|
return_dict: Optional[bool] = None,
|
||||||
|
training: bool = False,
|
||||||
|
) -> Union[tuple, TFData2VecVisionModelOutputWithPooling]:
|
||||||
|
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
||||||
|
output_hidden_states = (
|
||||||
|
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
||||||
|
)
|
||||||
|
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||||
|
|
||||||
|
if pixel_values is None:
|
||||||
|
raise ValueError("You have to specify pixel_values")
|
||||||
|
|
||||||
|
# Prepare head mask if needed
|
||||||
|
# 1.0 in head_mask indicate we keep the head
|
||||||
|
# attention_probs has shape bsz x n_heads x N x N
|
||||||
|
# input head_mask has shape [num_heads] or [num_hidden_layers x num_heads]
|
||||||
|
# and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length]
|
||||||
|
if head_mask is not None:
|
||||||
|
raise NotImplementedError
|
||||||
|
else:
|
||||||
|
head_mask = [None] * self.config.num_hidden_layers
|
||||||
|
|
||||||
|
embedding_output = self.embeddings(pixel_values, bool_masked_pos, training=training)
|
||||||
|
|
||||||
|
encoder_outputs = self.encoder(
|
||||||
|
embedding_output,
|
||||||
|
head_mask=head_mask,
|
||||||
|
output_attentions=output_attentions,
|
||||||
|
output_hidden_states=output_hidden_states,
|
||||||
|
return_dict=return_dict,
|
||||||
|
training=training,
|
||||||
|
)
|
||||||
|
|
||||||
|
sequence_output = encoder_outputs[0]
|
||||||
|
sequence_output = self.layernorm(sequence_output)
|
||||||
|
pooled_output = self.pooler(sequence_output) if self.pooler is not None else None
|
||||||
|
|
||||||
|
if not return_dict:
|
||||||
|
head_outputs = (sequence_output, pooled_output) if pooled_output is not None else (sequence_output,)
|
||||||
|
return head_outputs + encoder_outputs[1:]
|
||||||
|
|
||||||
|
return TFData2VecVisionModelOutputWithPooling(
|
||||||
|
last_hidden_state=sequence_output,
|
||||||
|
pooler_output=pooled_output,
|
||||||
|
hidden_states=encoder_outputs.hidden_states,
|
||||||
|
attentions=encoder_outputs.attentions,
|
||||||
|
)
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionPooler(tf.keras.layers.Layer):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, **kwargs):
|
||||||
|
super().__init__(**kwargs)
|
||||||
|
self.layernorm = (
|
||||||
|
tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layernorm")
|
||||||
|
if config.use_mean_pooling
|
||||||
|
else None
|
||||||
|
)
|
||||||
|
|
||||||
|
def call(self, hidden_states: tf.Tensor) -> tf.Tensor:
|
||||||
|
if self.layernorm is not None:
|
||||||
|
# Mean pool the final hidden states of the patch tokens
|
||||||
|
patch_tokens = hidden_states[:, 1:, :]
|
||||||
|
pooled_output = self.layernorm(tf.reduce_mean(patch_tokens, axis=1))
|
||||||
|
else:
|
||||||
|
# Pool by simply taking the final hidden state of the [CLS] token
|
||||||
|
pooled_output = hidden_states[:, 0]
|
||||||
|
|
||||||
|
return pooled_output
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionPreTrainedModel(TFPreTrainedModel):
|
||||||
|
"""
|
||||||
|
An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
|
||||||
|
models.
|
||||||
|
"""
|
||||||
|
|
||||||
|
config_class = Data2VecVisionConfig
|
||||||
|
base_model_prefix = "data2vec_vision"
|
||||||
|
main_input_name = "pixel_values"
|
||||||
|
_keys_to_ignore_on_load_unexpected = [r"relative_position_index"]
|
||||||
|
|
||||||
|
@property
|
||||||
|
def dummy_inputs(self) -> Dict[str, tf.Tensor]:
|
||||||
|
"""
|
||||||
|
Dummy inputs to build the network. Returns:
|
||||||
|
`Dict[str, tf.Tensor]`: The dummy inputs.
|
||||||
|
"""
|
||||||
|
VISION_DUMMY_INPUTS = tf.random.uniform(
|
||||||
|
shape=(3, self.config.num_channels, self.config.image_size, self.config.image_size),
|
||||||
|
dtype=tf.float32,
|
||||||
|
)
|
||||||
|
return {"pixel_values": tf.constant(VISION_DUMMY_INPUTS)}
|
||||||
|
|
||||||
|
@tf.function(
|
||||||
|
input_signature=[
|
||||||
|
{
|
||||||
|
"pixel_values": tf.TensorSpec((None, None, None, None), tf.float32, name="pixel_values"),
|
||||||
|
}
|
||||||
|
]
|
||||||
|
)
|
||||||
|
def serving(self, inputs):
|
||||||
|
"""
|
||||||
|
Method used for serving the model.
|
||||||
|
|
||||||
|
Args:
|
||||||
|
inputs (`Dict[str, tf.Tensor]`):
|
||||||
|
The input of the saved model as a dictionary of tensors.
|
||||||
|
"""
|
||||||
|
|
||||||
|
return self.call(inputs)
|
||||||
|
|
||||||
|
|
||||||
|
DATA2VEC_VISION_START_DOCSTRING = r"""
|
||||||
|
This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the
|
||||||
|
library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
|
||||||
|
etc.).
|
||||||
|
|
||||||
|
This model is also a [tf.keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it
|
||||||
|
as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and
|
||||||
|
behavior.
|
||||||
|
|
||||||
|
<Tip>
|
||||||
|
|
||||||
|
TF 2.0 models accepts two formats as inputs:
|
||||||
|
|
||||||
|
- having all inputs as keyword arguments (like PyTorch models), or
|
||||||
|
- having all inputs as a list, tuple or dict in the first positional arguments.
|
||||||
|
|
||||||
|
This second option is useful when using [`tf.keras.Model.fit`] method which currently requires having all the
|
||||||
|
tensors in the first argument of the model call function: `model(inputs)`.
|
||||||
|
|
||||||
|
</Tip>
|
||||||
|
|
||||||
|
Args:
|
||||||
|
config ([`Data2VecVisionConfig`]): Model configuration class with all the parameters of the model.
|
||||||
|
Initializing with a config file does not load the weights associated with the model, only the
|
||||||
|
configuration. Check out the [`~TFPreTrainedModel.from_pretrained`] method to load the model weights.
|
||||||
|
"""
|
||||||
|
|
||||||
|
DATA2VEC_VISION_INPUTS_DOCSTRING = r"""
|
||||||
|
Args:
|
||||||
|
pixel_values (`np.ndarray`, `tf.Tensor`, `List[tf.Tensor]` ``Dict[str, tf.Tensor]` or `Dict[str, np.ndarray]` and each example must have the shape `(batch_size, num_channels, height, width)`):
|
||||||
|
Pixel values. Pixel values can be obtained using [`BeitFeatureExtractor`]. See
|
||||||
|
[`BeitFeatureExtractor.__call__`] for details.
|
||||||
|
|
||||||
|
head_mask (`np.ndarray` or `tf.Tensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
|
||||||
|
Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
|
||||||
|
- 1 indicates the head is **not masked**,
|
||||||
|
- 0 indicates the head is **masked**.
|
||||||
|
|
||||||
|
output_attentions (`bool`, *optional*):
|
||||||
|
Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
|
||||||
|
tensors for more detail.
|
||||||
|
|
||||||
|
output_hidden_states (`bool`, *optional*):
|
||||||
|
Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
|
||||||
|
more detail.
|
||||||
|
|
||||||
|
return_dict (`bool`, *optional*):
|
||||||
|
Whether or not to return a [`~file_utils.ModelOutput`] instead of a plain tuple. This argument can be used
|
||||||
|
in eager mode, in graph mode the value will always be set to True.
|
||||||
|
|
||||||
|
training (`bool`, *optional*, defaults to `False``):
|
||||||
|
Whether or not to use the model in training mode (some modules like dropout modules have different
|
||||||
|
behaviors between training and evaluation).
|
||||||
|
"""
|
||||||
|
|
||||||
|
|
||||||
|
@add_start_docstrings(
|
||||||
|
"The bare Data2VecVision Model transformer outputting raw hidden-states without any specific head on top.",
|
||||||
|
DATA2VEC_VISION_START_DOCSTRING,
|
||||||
|
)
|
||||||
|
class TFData2VecVisionModel(TFData2VecVisionPreTrainedModel):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, add_pooling_layer: bool = False, *inputs, **kwargs):
|
||||||
|
super().__init__(config, *inputs, **kwargs)
|
||||||
|
self.config = config
|
||||||
|
|
||||||
|
self.data2vec_vision = TFData2VecVisionMainLayer(
|
||||||
|
config, add_pooling_layer=add_pooling_layer, name="data2vec_vision"
|
||||||
|
)
|
||||||
|
|
||||||
|
def get_input_embeddings(self):
|
||||||
|
return self.data2vec_vision.get_input_embeddings()
|
||||||
|
|
||||||
|
@unpack_inputs
|
||||||
|
@add_start_docstrings_to_model_forward(DATA2VEC_VISION_INPUTS_DOCSTRING)
|
||||||
|
@add_code_sample_docstrings(
|
||||||
|
processor_class=_FEAT_EXTRACTOR_FOR_DOC,
|
||||||
|
checkpoint=_CHECKPOINT_FOR_DOC,
|
||||||
|
output_type=TFData2VecVisionModelOutputWithPooling,
|
||||||
|
config_class=_CONFIG_FOR_DOC,
|
||||||
|
modality="vision",
|
||||||
|
expected_output=_EXPECTED_OUTPUT_SHAPE,
|
||||||
|
)
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
pixel_values: Optional[TFModelInputType] = None,
|
||||||
|
bool_masked_pos: Optional[tf.Tensor] = None,
|
||||||
|
head_mask: Optional[Union[np.ndarray, tf.Tensor]] = None,
|
||||||
|
output_attentions: Optional[bool] = None,
|
||||||
|
output_hidden_states: Optional[bool] = None,
|
||||||
|
return_dict: Optional[bool] = None,
|
||||||
|
training: bool = False,
|
||||||
|
) -> Union[tuple, TFData2VecVisionModelOutputWithPooling]:
|
||||||
|
|
||||||
|
outputs = self.data2vec_vision(
|
||||||
|
pixel_values=pixel_values,
|
||||||
|
bool_masked_pos=bool_masked_pos,
|
||||||
|
head_mask=head_mask,
|
||||||
|
output_attentions=output_attentions,
|
||||||
|
output_hidden_states=output_hidden_states,
|
||||||
|
return_dict=return_dict,
|
||||||
|
training=training,
|
||||||
|
)
|
||||||
|
|
||||||
|
return outputs
|
||||||
|
|
||||||
|
|
||||||
|
@add_start_docstrings(
|
||||||
|
"""
|
||||||
|
Data2VecVision Model transformer with an image classification head on top (a linear layer on top of the average of
|
||||||
|
the final hidden states of the patch tokens) e.g. for ImageNet.
|
||||||
|
""",
|
||||||
|
DATA2VEC_VISION_START_DOCSTRING,
|
||||||
|
)
|
||||||
|
class TFData2VecVisionForImageClassification(TFData2VecVisionPreTrainedModel, TFSequenceClassificationLoss):
|
||||||
|
def __init__(self, config: Data2VecVisionConfig, *inputs, **kwargs):
|
||||||
|
super().__init__(config, *inputs, **kwargs)
|
||||||
|
|
||||||
|
self.num_labels = config.num_labels
|
||||||
|
self.data2vec_vision = TFData2VecVisionMainLayer(config, add_pooling_layer=True, name="data2vec_vision")
|
||||||
|
|
||||||
|
# Classifier head
|
||||||
|
self.classifier = tf.keras.layers.Dense(
|
||||||
|
units=config.num_labels,
|
||||||
|
kernel_initializer=get_initializer(config.initializer_range),
|
||||||
|
name="classifier",
|
||||||
|
)
|
||||||
|
|
||||||
|
@unpack_inputs
|
||||||
|
@add_start_docstrings_to_model_forward(DATA2VEC_VISION_INPUTS_DOCSTRING)
|
||||||
|
@add_code_sample_docstrings(
|
||||||
|
processor_class=_FEAT_EXTRACTOR_FOR_DOC,
|
||||||
|
checkpoint=_IMAGE_CLASS_CHECKPOINT,
|
||||||
|
output_type=TFSequenceClassifierOutput,
|
||||||
|
config_class=_CONFIG_FOR_DOC,
|
||||||
|
expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
|
||||||
|
)
|
||||||
|
def call(
|
||||||
|
self,
|
||||||
|
pixel_values: Optional[TFModelInputType] = None,
|
||||||
|
head_mask: Optional[Union[np.ndarray, tf.Tensor]] = None,
|
||||||
|
output_attentions: Optional[bool] = None,
|
||||||
|
output_hidden_states: Optional[bool] = None,
|
||||||
|
return_dict: Optional[bool] = None,
|
||||||
|
labels: Optional[Union[np.ndarray, tf.Tensor]] = None,
|
||||||
|
training: Optional[bool] = False,
|
||||||
|
) -> Union[TFSequenceClassifierOutput, tuple]:
|
||||||
|
r"""
|
||||||
|
labels (`tf.Tensor` or `np.ndarray` of shape `(batch_size,)`, *optional*):
|
||||||
|
Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
|
||||||
|
config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
|
||||||
|
`config.num_labels > 1` a classification loss is computed (Cross-Entropy).
|
||||||
|
"""
|
||||||
|
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||||
|
|
||||||
|
outputs = self.data2vec_vision(
|
||||||
|
pixel_values=pixel_values,
|
||||||
|
head_mask=head_mask,
|
||||||
|
output_attentions=output_attentions,
|
||||||
|
output_hidden_states=output_hidden_states,
|
||||||
|
return_dict=return_dict,
|
||||||
|
training=training,
|
||||||
|
)
|
||||||
|
|
||||||
|
pooled_output = outputs.pooler_output if return_dict else outputs[1]
|
||||||
|
logits = self.classifier(pooled_output)
|
||||||
|
loss = None if labels is None else self.hf_compute_loss(labels=labels, logits=logits)
|
||||||
|
|
||||||
|
if not return_dict:
|
||||||
|
output = (logits,) + outputs[2:]
|
||||||
|
return ((loss,) + output) if loss is not None else output
|
||||||
|
|
||||||
|
return TFSequenceClassifierOutput(
|
||||||
|
loss=loss,
|
||||||
|
logits=logits,
|
||||||
|
hidden_states=outputs.hidden_states,
|
||||||
|
attentions=outputs.attentions,
|
||||||
|
)
|
||||||
@@ -742,6 +742,27 @@ class TFCTRLPreTrainedModel(metaclass=DummyObject):
|
|||||||
requires_backends(self, ["tf"])
|
requires_backends(self, ["tf"])
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionForImageClassification(metaclass=DummyObject):
|
||||||
|
_backends = ["tf"]
|
||||||
|
|
||||||
|
def __init__(self, *args, **kwargs):
|
||||||
|
requires_backends(self, ["tf"])
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionModel(metaclass=DummyObject):
|
||||||
|
_backends = ["tf"]
|
||||||
|
|
||||||
|
def __init__(self, *args, **kwargs):
|
||||||
|
requires_backends(self, ["tf"])
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionPreTrainedModel(metaclass=DummyObject):
|
||||||
|
_backends = ["tf"]
|
||||||
|
|
||||||
|
def __init__(self, *args, **kwargs):
|
||||||
|
requires_backends(self, ["tf"])
|
||||||
|
|
||||||
|
|
||||||
TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST = None
|
TF_DEBERTA_PRETRAINED_MODEL_ARCHIVE_LIST = None
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
467
tests/models/data2vec/test_modeling_tf_data2vec_vision.py
Normal file
467
tests/models/data2vec/test_modeling_tf_data2vec_vision.py
Normal file
@@ -0,0 +1,467 @@
|
|||||||
|
# coding=utf-8
|
||||||
|
# Copyright 2022 The HuggingFace Inc. team. All rights reserved.
|
||||||
|
#
|
||||||
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
# you may not use this file except in compliance with the License.
|
||||||
|
# You may obtain a copy of the License at
|
||||||
|
#
|
||||||
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
#
|
||||||
|
# Unless required by applicable law or agreed to in writing, software
|
||||||
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
# See the License for the specific language governing permissions and
|
||||||
|
# limitations under the License.
|
||||||
|
""" Testing suite for the TensorFlow Data2VecVision model. """
|
||||||
|
|
||||||
|
import collections.abc
|
||||||
|
import inspect
|
||||||
|
import unittest
|
||||||
|
|
||||||
|
import numpy as np
|
||||||
|
|
||||||
|
from transformers import Data2VecVisionConfig
|
||||||
|
from transformers.file_utils import cached_property, is_tf_available, is_vision_available
|
||||||
|
from transformers.testing_utils import require_tf, require_vision, slow
|
||||||
|
|
||||||
|
from ...test_configuration_common import ConfigTester
|
||||||
|
from ...test_modeling_tf_common import TFModelTesterMixin, floats_tensor, ids_tensor
|
||||||
|
|
||||||
|
|
||||||
|
DATA2VEC_VISION_PRETRAINED_MODEL_ARCHIVE_LIST = [
|
||||||
|
"facebook/data2vec-vision-base-ft1k",
|
||||||
|
# See all Data2VecVision models at https://huggingface.co/models?filter=data2vec-vision
|
||||||
|
]
|
||||||
|
|
||||||
|
|
||||||
|
if is_tf_available():
|
||||||
|
import tensorflow as tf
|
||||||
|
|
||||||
|
from transformers import TFData2VecVisionForImageClassification, TFData2VecVisionModel
|
||||||
|
|
||||||
|
|
||||||
|
if is_vision_available():
|
||||||
|
from PIL import Image
|
||||||
|
|
||||||
|
from transformers import BeitFeatureExtractor
|
||||||
|
|
||||||
|
|
||||||
|
class TFData2VecVisionModelTester:
|
||||||
|
def __init__(
|
||||||
|
self,
|
||||||
|
parent,
|
||||||
|
vocab_size=100,
|
||||||
|
batch_size=13,
|
||||||
|
image_size=30,
|
||||||
|
patch_size=2,
|
||||||
|
num_channels=3,
|
||||||
|
is_training=True,
|
||||||
|
use_labels=True,
|
||||||
|
hidden_size=32,
|
||||||
|
num_hidden_layers=4,
|
||||||
|
num_attention_heads=4,
|
||||||
|
intermediate_size=37,
|
||||||
|
hidden_act="gelu",
|
||||||
|
hidden_dropout_prob=0.1,
|
||||||
|
attention_probs_dropout_prob=0.1,
|
||||||
|
type_sequence_label_size=10,
|
||||||
|
initializer_range=0.02,
|
||||||
|
num_labels=3,
|
||||||
|
scope=None,
|
||||||
|
out_indices=[0, 1, 2, 3],
|
||||||
|
):
|
||||||
|
self.parent = parent
|
||||||
|
self.vocab_size = 100
|
||||||
|
self.batch_size = batch_size
|
||||||
|
self.image_size = image_size
|
||||||
|
self.patch_size = patch_size
|
||||||
|
self.num_channels = num_channels
|
||||||
|
self.is_training = is_training
|
||||||
|
self.use_labels = use_labels
|
||||||
|
self.hidden_size = hidden_size
|
||||||
|
self.num_hidden_layers = num_hidden_layers
|
||||||
|
self.num_attention_heads = num_attention_heads
|
||||||
|
self.intermediate_size = intermediate_size
|
||||||
|
self.hidden_act = hidden_act
|
||||||
|
self.hidden_dropout_prob = hidden_dropout_prob
|
||||||
|
self.attention_probs_dropout_prob = attention_probs_dropout_prob
|
||||||
|
self.type_sequence_label_size = type_sequence_label_size
|
||||||
|
self.initializer_range = initializer_range
|
||||||
|
self.scope = scope
|
||||||
|
self.out_indices = out_indices
|
||||||
|
self.num_labels = num_labels
|
||||||
|
|
||||||
|
def prepare_config_and_inputs(self):
|
||||||
|
pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size])
|
||||||
|
|
||||||
|
labels = None
|
||||||
|
pixel_labels = None
|
||||||
|
if self.use_labels:
|
||||||
|
labels = ids_tensor([self.batch_size], self.type_sequence_label_size)
|
||||||
|
pixel_labels = ids_tensor([self.batch_size, self.image_size, self.image_size], self.num_labels)
|
||||||
|
|
||||||
|
config = self.get_config()
|
||||||
|
|
||||||
|
return config, pixel_values, labels, pixel_labels
|
||||||
|
|
||||||
|
def get_config(self):
|
||||||
|
return Data2VecVisionConfig(
|
||||||
|
vocab_size=self.vocab_size,
|
||||||
|
image_size=self.image_size,
|
||||||
|
patch_size=self.patch_size,
|
||||||
|
num_channels=self.num_channels,
|
||||||
|
hidden_size=self.hidden_size,
|
||||||
|
num_hidden_layers=self.num_hidden_layers,
|
||||||
|
num_attention_heads=self.num_attention_heads,
|
||||||
|
intermediate_size=self.intermediate_size,
|
||||||
|
hidden_act=self.hidden_act,
|
||||||
|
hidden_dropout_prob=self.hidden_dropout_prob,
|
||||||
|
attention_probs_dropout_prob=self.attention_probs_dropout_prob,
|
||||||
|
is_decoder=False,
|
||||||
|
initializer_range=self.initializer_range,
|
||||||
|
out_indices=self.out_indices,
|
||||||
|
)
|
||||||
|
|
||||||
|
def create_and_check_model(self, config, pixel_values, labels, pixel_labels):
|
||||||
|
model = TFData2VecVisionModel(config=config)
|
||||||
|
result = model(pixel_values, training=False)
|
||||||
|
# expected sequence length = num_patches + 1 (we add 1 for the [CLS] token)
|
||||||
|
image_size = (
|
||||||
|
self.image_size
|
||||||
|
if isinstance(self.image_size, collections.abc.Iterable)
|
||||||
|
else (self.image_size, self.image_size)
|
||||||
|
)
|
||||||
|
patch_size = (
|
||||||
|
self.patch_size
|
||||||
|
if isinstance(self.image_size, collections.abc.Iterable)
|
||||||
|
else (self.patch_size, self.patch_size)
|
||||||
|
)
|
||||||
|
num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
|
||||||
|
self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, num_patches + 1, self.hidden_size))
|
||||||
|
|
||||||
|
def create_and_check_for_image_classification(self, config, pixel_values, labels, pixel_labels):
|
||||||
|
config.num_labels = self.type_sequence_label_size
|
||||||
|
model = TFData2VecVisionForImageClassification(config)
|
||||||
|
|
||||||
|
result = model(pixel_values, labels=labels, training=False)
|
||||||
|
self.parent.assertEqual(result.logits.shape, (self.batch_size, self.type_sequence_label_size))
|
||||||
|
|
||||||
|
def prepare_config_and_inputs_for_common(self):
|
||||||
|
config_and_inputs = self.prepare_config_and_inputs()
|
||||||
|
config, pixel_values, labels, pixel_labels = config_and_inputs
|
||||||
|
inputs_dict = {"pixel_values": pixel_values}
|
||||||
|
return config, inputs_dict
|
||||||
|
|
||||||
|
def prepare_config_and_inputs_for_keras_fit(self):
|
||||||
|
config_and_inputs = self.prepare_config_and_inputs()
|
||||||
|
config, pixel_values, _, _ = config_and_inputs
|
||||||
|
inputs_dict = {"pixel_values": pixel_values, "labels": tf.zeros((self.batch_size))}
|
||||||
|
return config, inputs_dict
|
||||||
|
|
||||||
|
|
||||||
|
@require_tf
|
||||||
|
class TFData2VecVisionModelTest(TFModelTesterMixin, unittest.TestCase):
|
||||||
|
"""
|
||||||
|
Here we also overwrite some of the tests of test_modeling_common.py, as Data2VecVision does not use input_ids, inputs_embeds,
|
||||||
|
attention_mask and seq_length.
|
||||||
|
"""
|
||||||
|
|
||||||
|
all_model_classes = (TFData2VecVisionModel, TFData2VecVisionForImageClassification) if is_tf_available() else ()
|
||||||
|
|
||||||
|
test_pruning = False
|
||||||
|
test_onnx = False
|
||||||
|
test_resize_embeddings = False
|
||||||
|
test_head_masking = False
|
||||||
|
|
||||||
|
def setUp(self):
|
||||||
|
self.model_tester = TFData2VecVisionModelTester(self)
|
||||||
|
self.config_tester = ConfigTester(
|
||||||
|
self, config_class=Data2VecVisionConfig, has_text_modality=False, hidden_size=37
|
||||||
|
)
|
||||||
|
|
||||||
|
def test_config(self):
|
||||||
|
self.config_tester.run_common_tests()
|
||||||
|
|
||||||
|
@unittest.skip(reason="Data2VecVision does not use inputs_embeds")
|
||||||
|
def test_inputs_embeds(self):
|
||||||
|
# Data2VecVision does not use inputs_embeds
|
||||||
|
pass
|
||||||
|
|
||||||
|
def test_model_common_attributes(self):
|
||||||
|
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
model = model_class(config)
|
||||||
|
self.assertIsInstance(model.get_input_embeddings(), (tf.keras.layers.Layer))
|
||||||
|
x = model.get_output_embeddings()
|
||||||
|
self.assertTrue(x is None or isinstance(x, tf.keras.layers.Layer))
|
||||||
|
|
||||||
|
def test_forward_signature(self):
|
||||||
|
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
model = model_class(config)
|
||||||
|
signature = inspect.signature(model.call)
|
||||||
|
# signature.parameters is an OrderedDict => so arg_names order is deterministic
|
||||||
|
arg_names = [*signature.parameters.keys()]
|
||||||
|
|
||||||
|
expected_arg_names = ["pixel_values"]
|
||||||
|
self.assertListEqual(arg_names[:1], expected_arg_names)
|
||||||
|
|
||||||
|
def test_model(self):
|
||||||
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
||||||
|
self.model_tester.create_and_check_model(*config_and_inputs)
|
||||||
|
|
||||||
|
def test_attention_outputs(self):
|
||||||
|
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
config.return_dict = True
|
||||||
|
|
||||||
|
# in Data2VecVision, the seq_len equals the number of patches + 1 (we add 1 for the [CLS] token)
|
||||||
|
image_size = (
|
||||||
|
self.model_tester.image_size
|
||||||
|
if isinstance(self.model_tester.image_size, collections.abc.Iterable)
|
||||||
|
else (self.model_tester.image_size, self.model_tester.image_size)
|
||||||
|
)
|
||||||
|
patch_size = (
|
||||||
|
self.model_tester.patch_size
|
||||||
|
if isinstance(self.model_tester.patch_size, collections.abc.Iterable)
|
||||||
|
else (self.model_tester.patch_size, self.model_tester.patch_size)
|
||||||
|
)
|
||||||
|
num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
|
||||||
|
seq_len = num_patches + 1
|
||||||
|
encoder_seq_length = getattr(self.model_tester, "encoder_seq_length", seq_len)
|
||||||
|
encoder_key_length = getattr(self.model_tester, "key_length", encoder_seq_length)
|
||||||
|
chunk_length = getattr(self.model_tester, "chunk_length", None)
|
||||||
|
if chunk_length is not None and hasattr(self.model_tester, "num_hashes"):
|
||||||
|
encoder_seq_length = encoder_seq_length * self.model_tester.num_hashes
|
||||||
|
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
inputs_dict["output_attentions"] = True
|
||||||
|
inputs_dict["output_hidden_states"] = False
|
||||||
|
config.return_dict = True
|
||||||
|
model = model_class(config)
|
||||||
|
outputs = model(**self._prepare_for_class(inputs_dict, model_class), training=False)
|
||||||
|
attentions = outputs.encoder_attentions if config.is_encoder_decoder else outputs.attentions
|
||||||
|
self.assertEqual(len(attentions), self.model_tester.num_hidden_layers)
|
||||||
|
|
||||||
|
# check that output_attentions also work using config
|
||||||
|
del inputs_dict["output_attentions"]
|
||||||
|
config.output_attentions = True
|
||||||
|
model = model_class(config)
|
||||||
|
outputs = model(**self._prepare_for_class(inputs_dict, model_class), training=False)
|
||||||
|
attentions = outputs.encoder_attentions if config.is_encoder_decoder else outputs.attentions
|
||||||
|
self.assertEqual(len(attentions), self.model_tester.num_hidden_layers)
|
||||||
|
|
||||||
|
self.assertListEqual(
|
||||||
|
list(attentions[0].shape[-3:]),
|
||||||
|
[self.model_tester.num_attention_heads, encoder_seq_length, encoder_key_length],
|
||||||
|
)
|
||||||
|
out_len = len(outputs)
|
||||||
|
|
||||||
|
# Check attention is always last and order is fine
|
||||||
|
inputs_dict["output_attentions"] = True
|
||||||
|
inputs_dict["output_hidden_states"] = True
|
||||||
|
model = model_class(config)
|
||||||
|
outputs = model(**self._prepare_for_class(inputs_dict, model_class), training=False)
|
||||||
|
|
||||||
|
self.assertEqual(out_len + 1, len(outputs))
|
||||||
|
|
||||||
|
self_attentions = outputs.attentions
|
||||||
|
|
||||||
|
self.assertEqual(len(self_attentions), self.model_tester.num_hidden_layers)
|
||||||
|
self.assertListEqual(
|
||||||
|
list(self_attentions[0].shape[-3:]),
|
||||||
|
[self.model_tester.num_attention_heads, encoder_seq_length, encoder_key_length],
|
||||||
|
)
|
||||||
|
|
||||||
|
def test_hidden_states_output(self):
|
||||||
|
def check_hidden_states_output(inputs_dict, config, model_class):
|
||||||
|
model = model_class(config)
|
||||||
|
|
||||||
|
outputs = model(**self._prepare_for_class(inputs_dict, model_class))
|
||||||
|
|
||||||
|
hidden_states = outputs.encoder_hidden_states if config.is_encoder_decoder else outputs.hidden_states
|
||||||
|
|
||||||
|
expected_num_layers = getattr(
|
||||||
|
self.model_tester, "expected_num_hidden_layers", self.model_tester.num_hidden_layers + 1
|
||||||
|
)
|
||||||
|
self.assertEqual(len(hidden_states), expected_num_layers)
|
||||||
|
|
||||||
|
# Data2VecVision has a different seq_length
|
||||||
|
image_size = (
|
||||||
|
self.model_tester.image_size
|
||||||
|
if isinstance(self.model_tester.image_size, collections.abc.Iterable)
|
||||||
|
else (self.model_tester.image_size, self.model_tester.image_size)
|
||||||
|
)
|
||||||
|
patch_size = (
|
||||||
|
self.model_tester.patch_size
|
||||||
|
if isinstance(self.model_tester.patch_size, collections.abc.Iterable)
|
||||||
|
else (self.model_tester.patch_size, self.model_tester.patch_size)
|
||||||
|
)
|
||||||
|
num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
|
||||||
|
seq_length = num_patches + 1
|
||||||
|
|
||||||
|
self.assertListEqual(
|
||||||
|
list(hidden_states[0].shape[-2:]),
|
||||||
|
[seq_length, self.model_tester.hidden_size],
|
||||||
|
)
|
||||||
|
|
||||||
|
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
inputs_dict["output_hidden_states"] = True
|
||||||
|
check_hidden_states_output(inputs_dict, config, model_class)
|
||||||
|
|
||||||
|
# check that output_hidden_states also work using config
|
||||||
|
del inputs_dict["output_hidden_states"]
|
||||||
|
config.output_hidden_states = True
|
||||||
|
|
||||||
|
check_hidden_states_output(inputs_dict, config, model_class)
|
||||||
|
|
||||||
|
# Overriding this method since the base method won't be compatible with Data2VecVision.
|
||||||
|
def test_keras_fit(self):
|
||||||
|
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
# Since `TFData2VecVisionModel` cannot operate with the default `fit()` method.
|
||||||
|
if model_class.__name__ != "TFData2VecVisionModel":
|
||||||
|
model = model_class(config)
|
||||||
|
if getattr(model, "hf_compute_loss", None):
|
||||||
|
# Test that model correctly compute the loss with kwargs
|
||||||
|
_, prepared_for_class = self.model_tester.prepare_config_and_inputs_for_keras_fit()
|
||||||
|
|
||||||
|
label_names = {"labels"}
|
||||||
|
self.assertGreater(len(label_names), 0, msg="No matching label names found!")
|
||||||
|
labels = {key: val for key, val in prepared_for_class.items() if key in label_names}
|
||||||
|
inputs_minus_labels = {
|
||||||
|
key: val for key, val in prepared_for_class.items() if key not in label_names
|
||||||
|
}
|
||||||
|
self.assertGreater(len(inputs_minus_labels), 0)
|
||||||
|
model.compile(optimizer=tf.keras.optimizers.SGD(0.0), run_eagerly=True)
|
||||||
|
|
||||||
|
# Make sure the model fits without crashing regardless of where we pass the labels
|
||||||
|
history1 = model.fit(
|
||||||
|
prepared_for_class,
|
||||||
|
validation_data=prepared_for_class,
|
||||||
|
steps_per_epoch=1,
|
||||||
|
validation_steps=1,
|
||||||
|
shuffle=False,
|
||||||
|
)
|
||||||
|
val_loss1 = history1.history["val_loss"][0]
|
||||||
|
history2 = model.fit(
|
||||||
|
inputs_minus_labels,
|
||||||
|
labels,
|
||||||
|
validation_data=(inputs_minus_labels, labels),
|
||||||
|
steps_per_epoch=1,
|
||||||
|
validation_steps=1,
|
||||||
|
shuffle=False,
|
||||||
|
)
|
||||||
|
val_loss2 = history2.history["val_loss"][0]
|
||||||
|
self.assertTrue(np.allclose(val_loss1, val_loss2, atol=1e-2, rtol=1e-3))
|
||||||
|
|
||||||
|
# Overriding this method since the base method won't be compatible with Data2VecVision.
|
||||||
|
def test_loss_computation(self):
|
||||||
|
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||||
|
for model_class in self.all_model_classes:
|
||||||
|
# Since `TFData2VecVisionModel` won't have labels against which we
|
||||||
|
# could compute loss.
|
||||||
|
if model_class.__name__ != "TFData2VecVisionModel":
|
||||||
|
model = model_class(config)
|
||||||
|
if getattr(model, "hf_compute_loss", None):
|
||||||
|
# The number of elements in the loss should be the same as the number of elements in the label
|
||||||
|
_, prepared_for_class = self.model_tester.prepare_config_and_inputs_for_keras_fit()
|
||||||
|
added_label = prepared_for_class[
|
||||||
|
sorted(list(prepared_for_class.keys() - inputs_dict.keys()), reverse=True)[0]
|
||||||
|
]
|
||||||
|
loss_size = tf.size(added_label)
|
||||||
|
|
||||||
|
# Test that model correctly compute the loss with kwargs
|
||||||
|
possible_input_names = {"input_ids", "pixel_values", "input_features"}
|
||||||
|
input_name = possible_input_names.intersection(set(prepared_for_class)).pop()
|
||||||
|
model_input = prepared_for_class.pop(input_name)
|
||||||
|
|
||||||
|
loss = model(model_input, **prepared_for_class)[0]
|
||||||
|
self.assertEqual(loss.shape, [loss_size])
|
||||||
|
|
||||||
|
# Test that model correctly compute the loss with a dict
|
||||||
|
_, prepared_for_class = self.model_tester.prepare_config_and_inputs_for_keras_fit()
|
||||||
|
loss = model(**prepared_for_class)[0]
|
||||||
|
self.assertEqual(loss.shape, [loss_size])
|
||||||
|
|
||||||
|
# Test that model correctly compute the loss with a tuple
|
||||||
|
label_keys = prepared_for_class.keys() - inputs_dict.keys()
|
||||||
|
signature = inspect.signature(model.call).parameters
|
||||||
|
signature_names = list(signature.keys())
|
||||||
|
|
||||||
|
# Create a dictionary holding the location of the tensors in the tuple
|
||||||
|
tuple_index_mapping = {0: input_name}
|
||||||
|
for label_key in label_keys:
|
||||||
|
label_key_index = signature_names.index(label_key)
|
||||||
|
tuple_index_mapping[label_key_index] = label_key
|
||||||
|
sorted_tuple_index_mapping = sorted(tuple_index_mapping.items())
|
||||||
|
# Initialize a list with their default values, update the values and convert to a tuple
|
||||||
|
list_input = []
|
||||||
|
|
||||||
|
for name in signature_names:
|
||||||
|
if name != "kwargs":
|
||||||
|
list_input.append(signature[name].default)
|
||||||
|
|
||||||
|
for index, value in sorted_tuple_index_mapping:
|
||||||
|
list_input[index] = prepared_for_class[value]
|
||||||
|
|
||||||
|
tuple_input = tuple(list_input)
|
||||||
|
|
||||||
|
# Send to model
|
||||||
|
loss = model(tuple_input[:-1])[0]
|
||||||
|
|
||||||
|
self.assertEqual(loss.shape, [loss_size])
|
||||||
|
|
||||||
|
def test_for_image_classification(self):
|
||||||
|
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
||||||
|
self.model_tester.create_and_check_for_image_classification(*config_and_inputs)
|
||||||
|
|
||||||
|
@slow
|
||||||
|
def test_model_from_pretrained(self):
|
||||||
|
for model_name in DATA2VEC_VISION_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
|
||||||
|
model = TFData2VecVisionModel.from_pretrained(model_name)
|
||||||
|
self.assertIsNotNone(model)
|
||||||
|
|
||||||
|
|
||||||
|
# We will verify our results on an image of cute cats
|
||||||
|
def prepare_img():
|
||||||
|
image = Image.open("./tests/fixtures/tests_samples/COCO/000000039769.png")
|
||||||
|
return image
|
||||||
|
|
||||||
|
|
||||||
|
@require_tf
|
||||||
|
@require_vision
|
||||||
|
class TFData2VecVisionModelIntegrationTest(unittest.TestCase):
|
||||||
|
@cached_property
|
||||||
|
def default_feature_extractor(self):
|
||||||
|
return (
|
||||||
|
BeitFeatureExtractor.from_pretrained("facebook/data2vec-vision-base-ft1k")
|
||||||
|
if is_vision_available()
|
||||||
|
else None
|
||||||
|
)
|
||||||
|
|
||||||
|
@slow
|
||||||
|
def test_inference_image_classification_head_imagenet_1k(self):
|
||||||
|
model = TFData2VecVisionForImageClassification.from_pretrained("facebook/data2vec-vision-base-ft1k")
|
||||||
|
|
||||||
|
feature_extractor = self.default_feature_extractor
|
||||||
|
image = prepare_img()
|
||||||
|
inputs = feature_extractor(images=image, return_tensors="tf")
|
||||||
|
|
||||||
|
# forward pass
|
||||||
|
outputs = model(**inputs)
|
||||||
|
logits = outputs.logits
|
||||||
|
|
||||||
|
# verify the logits
|
||||||
|
expected_shape = tf.convert_to_tensor([1, 1000])
|
||||||
|
self.assertEqual(logits.shape, expected_shape)
|
||||||
|
|
||||||
|
expected_slice = tf.convert_to_tensor([0.3277, -0.1395, 0.0911])
|
||||||
|
|
||||||
|
tf.debugging.assert_near(logits[0, :3], expected_slice, atol=1e-4)
|
||||||
|
|
||||||
|
expected_top2 = [model.config.label2id[i] for i in ["remote control, remote", "tabby, tabby cat"]]
|
||||||
|
self.assertEqual(tf.nn.top_k(outputs.logits[0], 2).indices.numpy().tolist(), expected_top2)
|
||||||
Reference in New Issue
Block a user