JaMIE: a Japanese Medical Information Extraction toolkit

Joint Japanese Medical Problem, Modality and Relation Recognition

In the field of Japanese medical information extraction, few analyzing tools are available and relation extraction is still an under-explored topic. In this paper, we first propose a novel relation annotation schema for investigating the medical and temporal relations between medical entities in Japanese medical reports. We design a system with three components for jointly recognizing medical entities, classifying entity modalities, and extracting relations.

Installation (python3.8)

git clone https://github.com/racerandom/JaMIE.git
cd JaMIE \

Required python package

pip install -r requirements.txt

Mophological analyzer required:

mecab (juman-dict) by default
jumanpp

Pretrained BERT required for training:

NICT-BERT (NICT_BERT-base_JapaneseWikipedia_32K_BPE)

Pre-processing: Batch Converter from XML (or raw text) to CONLL for Train/Test

The Train/Test phrases require all train, dev, test file converted to CONLL-style before Train/Test. You also need to convert raw text to CONLL-style for prediction, but please make sure the file extension is .xml.

python data_converter.py \
--mode xml2conll \
--xml $XML_FILES_DIR \
--conll $OUTPUT_CONLL_DIR \
--cv_num 0 \ # 0 presents to generate single conll file, 5 presents 5-fold cross-validation
--doc_level \ # generate document-level ([SEP] denotes sentence boundaries) or sentence-level conll files
--segmenter mecab \ # please use mecab and NICT bert currently
--bert_dir $PRETRAINED_BERT # Pre-trained BERT or Trained model

Train：

CUDA_VISIBLE_DEVICES=$GPU_ID python clinical_joint.py \
--pretrained_model $PRETRAINED_BERT \ # downloaded pre-trained NICT BERT
--train_file $TRAIN_FILE \
--dev_file $DEV_FILE \
--dev_output $DEV_OUT \
--saved_model $MODEL_DIR_TO_SAVE \ # the place to save the model
--enc_lr 2e-5 \
--batch_size 4 \ # depends on your GPU memory
--warmup_epoch 2 \
--num_epoch 20 \
--do_train \
--fp16 (apex required)

Test:

We share the models trained on radiography interpretation reports of Lung Cancer (LC) and general medical reports of Idiopathic Pulmonary Fibrosis (IPF):

• The trained model of radiography interpretation reports of Lung Cancer (肺がん読影所見)
• The trained model of case reports of Idiopathic Pulmonary Fibrosis (IPF診療録)

You can either train a new model on your own training data or use our shared model for test.

CUDA_VISIBLE_DEVICES=$GPU_ID python clinical_joint.py \
--saved_model $SAVED_MODEL \ # Where the trained model placed
--test_file $TEST_FILE \
--test_output $TEST_OUT \
--batch_size 4

Batch Converter from predicted CONLL to XML

python data_converter.py \
--mode conll2xml \
--xml $XML_OUT_DIR \
--conll $TEST_OUT

Annotation Guideline of the training data (XML format)

We offer the links of both English and Japanese annotation guidelines.

• English Guideline
• Japanese Guideline

TO-DO

Recognition accuracy can be improved by leverage more training data or more robust pre-trained models. We are working on making the code compatible with Japanese DeBERTa

Questions

If you have any questions related to the code or papers, please feel free to send a mail to Fei Cheng: feicheng@i.kyoto-u.ac.jp or kevin.cheng.fei@gmail.com

Citation

If you use our code in your research, please cite the following papers:

@inproceedings{cheng-etal-2022-jamie,
   title={JaMIE: A Pipeline Japanese Medical Information Extraction System with Novel Relation Annotation},
      author={Fei Cheng, Shuntaro Yada, Ribeka Tanaka, Eiji Aramaki, Sadao Kurohashi},
         booktitle={Proceedings of the Thirteenth Language Resources and Evaluation Conference (LREC 2022)},
            year={2022}
}
@inproceedings{cheng2021jamie,
   title={JaMIE: A Pipeline Japanese Medical Information Extraction System},
      author={Fei Cheng, Shuntaro Yada, Ribeka Tanaka, Eiji Aramaki, Sadao Kurohashi},
         booktitle={arXiv},
            year={2021}
}
@inproceedings{yada-etal-2020-towards,
   title={Towards a Versatile Medical-Annotation Guideline Feasible Without Heavy Medical Knowledge: Starting From Critical Lung Diseases},
      author={Shuntaro Yada, Ayami Joh, Ribeka Tanaka, Fei Cheng, Eiji Aramaki, Sadao Kurohashi},
         booktitle={Proceedings of the Twelfth Language Resources and Evaluation Conference (LREC 2020)},
            year={2020}
}
@inproceedings{cheng-etal-2020-dynamically,
   title={Dynamically Updating Event Representations for Temporal Relation Classification with Multi-category Learning},
      author={Fei Cheng, Masayuki Asahara, Ichiro Kobayashi, Sadao Kurohashi},
         booktitle={Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP 2020), Findings Volume},
            year={2020}
}