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docs/source/en/model_doc/convbert.mdx

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+<!--Copyright 2020 The HuggingFace 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.
+-->
+
+# ConvBERT
+
+## Overview
+
+The ConvBERT model was proposed in [ConvBERT: Improving BERT with Span-based Dynamic Convolution](https://arxiv.org/abs/2008.02496) by Zihang Jiang, Weihao Yu, Daquan Zhou, Yunpeng Chen, Jiashi Feng, Shuicheng
+Yan.
+
+The abstract from the paper is the following:
+
+*Pre-trained language models like BERT and its variants have recently achieved impressive performance in various
+natural language understanding tasks. However, BERT heavily relies on the global self-attention block and thus suffers
+large memory footprint and computation cost. Although all its attention heads query on the whole input sequence for
+generating the attention map from a global perspective, we observe some heads only need to learn local dependencies,
+which means the existence of computation redundancy. We therefore propose a novel span-based dynamic convolution to
+replace these self-attention heads to directly model local dependencies. The novel convolution heads, together with the
+rest self-attention heads, form a new mixed attention block that is more efficient at both global and local context
+learning. We equip BERT with this mixed attention design and build a ConvBERT model. Experiments have shown that
+ConvBERT significantly outperforms BERT and its variants in various downstream tasks, with lower training cost and
+fewer model parameters. Remarkably, ConvBERTbase model achieves 86.4 GLUE score, 0.7 higher than ELECTRAbase, while
+using less than 1/4 training cost. Code and pre-trained models will be released.*
+
+ConvBERT training tips are similar to those of BERT.
+
+This model was contributed by [abhishek](https://huggingface.co/abhishek). The original implementation can be found
+here: https://github.com/yitu-opensource/ConvBert
+
+## ConvBertConfig
+
+[[autodoc]] ConvBertConfig
+
+## ConvBertTokenizer
+
+[[autodoc]] ConvBertTokenizer
+    - build_inputs_with_special_tokens
+    - get_special_tokens_mask
+    - create_token_type_ids_from_sequences
+    - save_vocabulary
+
+## ConvBertTokenizerFast
+
+[[autodoc]] ConvBertTokenizerFast
+
+## ConvBertModel
+
+[[autodoc]] ConvBertModel
+    - forward
+
+## ConvBertForMaskedLM
+
+[[autodoc]] ConvBertForMaskedLM
+    - forward
+
+## ConvBertForSequenceClassification
+
+[[autodoc]] ConvBertForSequenceClassification
+    - forward
+
+## ConvBertForMultipleChoice
+
+[[autodoc]] ConvBertForMultipleChoice
+    - forward
+
+## ConvBertForTokenClassification
+
+[[autodoc]] ConvBertForTokenClassification
+    - forward
+
+## ConvBertForQuestionAnswering
+
+[[autodoc]] ConvBertForQuestionAnswering
+    - forward
+
+## TFConvBertModel
+
+[[autodoc]] TFConvBertModel
+    - call
+
+## TFConvBertForMaskedLM
+
+[[autodoc]] TFConvBertForMaskedLM
+    - call
+
+## TFConvBertForSequenceClassification
+
+[[autodoc]] TFConvBertForSequenceClassification
+    - call
+
+## TFConvBertForMultipleChoice
+
+[[autodoc]] TFConvBertForMultipleChoice
+    - call
+
+## TFConvBertForTokenClassification
+
+[[autodoc]] TFConvBertForTokenClassification
+    - call
+
+## TFConvBertForQuestionAnswering
+
+[[autodoc]] TFConvBertForQuestionAnswering
+    - call