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--- |
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language: Chinese |
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widget: |
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- text: "江苏警方通报特斯拉冲进店铺" |
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--- |
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# Chinese RoBERTa-Base Model for NER |
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## Model description |
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The model is used for named entity recognition. You can download the model from the link [roberta-base-finetuned-cluener2020-chinese](https://huggingface.co/uer/roberta-base-finetuned-cluener2020-chinese). |
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## How to use |
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You can use this model directly with a pipeline for token classification : |
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```python |
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>>> from transformers import AutoModelForTokenClassification,AutoTokenizer,pipeline |
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>>> model = AutoModelForTokenClassification.from_pretrained('uer/roberta-base-finetuned-cluener2020-chinese') |
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>>> tokenizer = AutoTokenizer.from_pretrained('uer/roberta-base-finetuned-cluener2020-chinese') |
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>>> ner = pipeline('ner', model=model, tokenizer=tokenizer) |
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>>> ner("江苏警方通报特斯拉冲进店铺") |
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[ |
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{'word': '江', 'score': 0.49153077602386475, 'entity': 'B-address', 'index': 1, 'start': 0, 'end': 1}, |
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{'word': '苏', 'score': 0.6319217681884766, 'entity': 'I-address', 'index': 2, 'start': 1, 'end': 2}, |
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{'word': '特', 'score': 0.5912262797355652, 'entity': 'B-company', 'index': 7, 'start': 6, 'end': 7}, |
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{'word': '斯', 'score': 0.69145667552948, 'entity': 'I-company', 'index': 8, 'start': 7, 'end': 8}, |
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{'word': '拉', 'score': 0.7054660320281982, 'entity': 'I-company', 'index': 9, 'start': 8, 'end': 9} |
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] |
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``` |
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## Training data |
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[OCNLI](https://github.com/CLUEbenchmark/OCNLI) is used as training data. We only use the train set of the dataset. |
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## Training procedure |
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The model is fine-tuned by [UER-py](https://github.com/dbiir/UER-py/) on [Tencent Cloud TI-ONE](https://cloud.tencent.com/product/tione/). We fine-tune five epochs with a sequence length of 512 on the basis of the pre-trained model [chinese_roberta_L-12_H-768](https://huggingface.co/uer/chinese_roberta_L-12_H-768). At the end of each epoch, the model is saved when the best performance on development set is achieved. |
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``` |
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python3 run_ner.py --pretrained_model_path models/cluecorpussmall_roberta_base_seq512_model.bin-250000 \ |
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--vocab_path models/google_zh_vocab.txt \ |
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--train_path datasets/cluener2020/train.tsv \ |
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--dev_path datasets/cluener2020/dev.tsv \ |
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--label2id_path datasets/cluener2020/label2id.json \ |
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--output_model_path models/cluener2020_classifier_model.bin \ |
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--learning_rate 3e-5 --batch_size 32 --epochs_num 5 --seq_length 512 \ |
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--embedding word_pos_seg --encoder transformer --mask fully_visible |
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``` |
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Finally, we convert the pre-trained model into Huggingface's format: |
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``` |
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python3 scripts/convert_bert_token_classification_from_uer_to_huggingface.py --input_model_path models/cluener2020_classifier_model.bin \ |
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--output_model_path pytorch_model.bin \ |
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--layers_num 12 |
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``` |
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### BibTeX entry and citation info |
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``` |
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@article{zhao2019uer, |
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title={UER: An Open-Source Toolkit for Pre-training Models}, |
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author={Zhao, Zhe and Chen, Hui and Zhang, Jinbin and Zhao, Xin and Liu, Tao and Lu, Wei and Chen, Xi and Deng, Haotang and Ju, Qi and Du, Xiaoyong}, |
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journal={EMNLP-IJCNLP 2019}, |
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pages={241}, |
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year={2019} |
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} |
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``` |
