ner-study/preprocessing.py

import sys
from read_data import TagIdConverter, make_long_namedEntity, readKoreanDataAll, Sentence
from typing import Any, NamedTuple, List, Sequence, TypeVar
import json
import os.path as path
import tqdm
from transformers import PreTrainedTokenizer

PRE_BASE_PATH = 'prepro'

def preprocessing(tokenizer : PreTrainedTokenizer, converter :TagIdConverter,dataset: List[Sentence]):
    ret = []
    for item in tqdm.tqdm(dataset):
        assert len(item.word) == len(item.detail)
        tokens = tokenizer.tokenize(" ".join(item.word))
        e = make_long_namedEntity(item.word,tokens,item.detail)
        if len(e) != len(tokens):
            print(e,tokens)
            assert len(e) == len(tokens)
        
        ids = tokenizer.convert_tokens_to_ids(tokens)
        entityIds = converter.convert_tokens_to_ids(e)

        ret.append({"tokens":tokens,"ids":ids,"entity":e,"entity_ids": entityIds})
    
    return ret

def saveObject(path: str,data: Any):
    with open(path,"w",encoding="utf-8") as fp:
        json.dump(data,fp,ensure_ascii=False, indent=2)

def readPreprocessedData(path: str):
    with open(path,"r", encoding="utf-8") as fp:
        return json.load(fp)

def readPreporcssedDataAll():
    train = readPreprocessedData(path.join(PRE_BASE_PATH,"train.json"))
    dev = readPreprocessedData(path.join(PRE_BASE_PATH,"dev.json"))
    test = readPreprocessedData(path.join(PRE_BASE_PATH,"test.json"))
    return train, dev, test

if __name__ == "__main__":
    from transformers import BertTokenizer
    PRETAINED_MODEL_NAME = 'bert-base-multilingual-cased'

    rawTrain, rawDev, rawTest = readKoreanDataAll()
    print("load tokenzier...",file=sys.stderr)
    tokenizer = BertTokenizer.from_pretrained(PRETAINED_MODEL_NAME)
    converter = TagIdConverter()

    print("process train...",file=sys.stderr)
    train = preprocessing(tokenizer,converter,rawTrain)
    saveObject(path.join(PRE_BASE_PATH,"train.json"),train)
    print("process dev...",file=sys.stderr)
    dev = preprocessing(tokenizer,converter,rawDev)
    saveObject(path.join(PRE_BASE_PATH,"dev.json"),dev)
    print("process test...",file=sys.stderr)
    test = preprocessing(tokenizer,converter,rawTest)
    saveObject(path.join(PRE_BASE_PATH,"test.json"),test)