mobilebert model card update (#37256)

* mobilebert model card update

* Updates to model card mobilebert

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Co-authored-by: Reshan Gomis <reshang@verdentra.com>
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Reshan Gomis
2025-04-05 02:58:35 +05:30
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# MobileBERT
<div style="float: right;">
<div class="flex flex-wrap space-x-1"> <div class="flex flex-wrap space-x-1">
<img alt="PyTorch" src="https://img.shields.io/badge/PyTorch-DE3412?style=flat&logo=pytorch&logoColor=white"> <img alt="PyTorch" src="https://img.shields.io/badge/PyTorch-DE3412?style=flat&logo=pytorch&logoColor=white">
<img alt="TensorFlow" src="https://img.shields.io/badge/TensorFlow-FF6F00?style=flat&logo=tensorflow&logoColor=white"> <img alt="TensorFlow" src="https://img.shields.io/badge/TensorFlow-FF6F00?style=flat&logo=tensorflow&logoColor=white">
</div> </div>
</div>
## Overview # MobileBERT
The MobileBERT model was proposed in [MobileBERT: a Compact Task-Agnostic BERT for Resource-Limited Devices](https://arxiv.org/abs/2004.02984) by Zhiqing Sun, Hongkun Yu, Xiaodan Song, Renjie Liu, Yiming Yang, and Denny [MobileBERT](https://huggingface.co/papers/2004.02984) is a lightweight and efficient variant of BERT, specifically designed for resource-limited devices such as mobile phones. It retains BERT's architecture but significantly reduces model size and inference latency while maintaining strong performance on NLP tasks. MobileBERT achieves this through a bottleneck structure and carefully balanced self-attention and feedforward networks. The model is trained by knowledge transfer from a large BERT model with an inverted bottleneck structure.
Zhou. It's a bidirectional transformer based on the BERT model, which is compressed and accelerated using several
approaches.
The abstract from the paper is the following: You can find the original MobileBERT checkpoint under the [Google](https://huggingface.co/google/mobilebert-uncased) organization.
> [!TIP]
> Click on the MobileBERT models in the right sidebar for more examples of how to apply MobileBERT to different language tasks.
*Natural Language Processing (NLP) has recently achieved great success by using huge pre-trained models with hundreds The example below demonstrates how to predict the `[MASK]` token with [`Pipeline`], [`AutoModel`], and from the command line.
of millions of parameters. However, these models suffer from heavy model sizes and high latency such that they cannot
be deployed to resource-limited mobile devices. In this paper, we propose MobileBERT for compressing and accelerating
the popular BERT model. Like the original BERT, MobileBERT is task-agnostic, that is, it can be generically applied to
various downstream NLP tasks via simple fine-tuning. Basically, MobileBERT is a thin version of BERT_LARGE, while
equipped with bottleneck structures and a carefully designed balance between self-attentions and feed-forward networks.
To train MobileBERT, we first train a specially designed teacher model, an inverted-bottleneck incorporated BERT_LARGE
model. Then, we conduct knowledge transfer from this teacher to MobileBERT. Empirical studies show that MobileBERT is
4.3x smaller and 5.5x faster than BERT_BASE while achieving competitive results on well-known benchmarks. On the
natural language inference tasks of GLUE, MobileBERT achieves a GLUEscore o 77.7 (0.6 lower than BERT_BASE), and 62 ms
latency on a Pixel 4 phone. On the SQuAD v1.1/v2.0 question answering task, MobileBERT achieves a dev F1 score of
90.0/79.2 (1.5/2.1 higher than BERT_BASE).*
This model was contributed by [vshampor](https://huggingface.co/vshampor). The original code can be found [here](https://github.com/google-research/google-research/tree/master/mobilebert). <hfoptions id="usage">
<hfoption id="Pipeline">
## Usage tips ```py
import torch
from transformers import pipeline
- MobileBERT is a model with absolute position embeddings so it's usually advised to pad the inputs on the right rather pipeline = pipeline(
than the left. task="fill-mask",
- MobileBERT is similar to BERT and therefore relies on the masked language modeling (MLM) objective. It is therefore model="google/mobilebert-uncased",
efficient at predicting masked tokens and at NLU in general, but is not optimal for text generation. Models trained torch_dtype=torch.float16,
with a causal language modeling (CLM) objective are better in that regard. device=0
)
pipeline("The capital of France is [MASK].")
```
</hfoption>
<hfoption id="AutoModel">
```py
import torch
from transformers import AutoModelForMaskedLM, AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained(
"google/mobilebert-uncased",
)
model = AutoModelForMaskedLM.from_pretrained(
"google/mobilebert-uncased",
torch_dtype=torch.float16,
device_map="auto",
)
inputs = tokenizer("The capital of France is [MASK].", return_tensors="pt").to("cuda")
with torch.no_grad():
outputs = model(**inputs)
predictions = outputs.logits
masked_index = torch.where(inputs['input_ids'] == tokenizer.mask_token_id)[1]
predicted_token_id = predictions[0, masked_index].argmax(dim=-1)
predicted_token = tokenizer.decode(predicted_token_id)
print(f"The predicted token is: {predicted_token}")
```
</hfoption>
<hfoption id="transformers-cli">
```bash
echo -e "The capital of France is [MASK]." | transformers-cli run --task fill-mask --model google/mobilebert-uncased --device 0
```
</hfoption>
</hfoptions>
## Resources ## Notes
- [Text classification task guide](../tasks/sequence_classification) - Inputs should be padded on the right because BERT uses absolute position embeddings.
- [Token classification task guide](../tasks/token_classification)
- [Question answering task guide](../tasks/question_answering)
- [Masked language modeling task guide](../tasks/masked_language_modeling)
- [Multiple choice task guide](../tasks/multiple_choice)
## MobileBertConfig ## MobileBertConfig