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百度LAC分词

鲁宏爽
2023-12-01
对应数据的链接放这里了
import pandas as pd
from util.logger import Log
import os
from util.data_dir import root_dir
from LAC import LAC
os_file_name = os.path.split(os.path.realpath(__file__))[-1]


# 加载LAC模型
lac = LAC(mode="lac")
# 载入自定义词典
lac.load_customization(f'{root_dir}/data/lac_data/lac_define_dict.txt')


def load_stopwords():
    """
    加载停用词
    :return: list
    """
    stopwords_path = f'{root_dir}/data/lac_data/stop_words.txt'
    stopwords_increase_path = f'{root_dir}/data/lac_data/stop_words_increase.txt'
    if stopwords_path:
        with open(stopwords_path, 'r', encoding='utf-8-sig') as f:
            stopwords = [line.strip() for line in f]
    else:
        Log().info(os_file_name, '《热点事件》|没有停用词表|')
        stopwords = []
    if stopwords_increase_path:
        with open(stopwords_increase_path, 'r', encoding='utf-8-sig') as f:
            stopwords_increase = [line.strip() for line in f]
        stopwords.extend(stopwords_increase)
    else:
        Log().info(os_file_name, '《热点事件》|没有停用词增加表|')
    return stopwords


def extract_important_word(content: str):
    """
    LAC分词
    :param content: str
    :return: str
    """

    # 运行lac
    lac_result = lac.run(content)

    # 将分词和词性转为dataframe
    lac_result_df = pd.DataFrame(data=zip(lac_result[1], lac_result[0]), columns=['char', 'word'])

    # 选取重要词性的dataframe
    seg_data = list(lac_result_df[(lac_result_df['char'] == 'n') | (lac_result_df['char'] == 'vn')
                                  | (lac_result_df['char'] == 'an') | (lac_result_df['char'] == 'nz')
                                  | (lac_result_df['char'] == 'ORG') | (lac_result_df['char'] == 'v')
                                  | (lac_result_df['char'] == 'LOC')].word)

    # 获取重要词语,不在停用词内
    docu_process = ','.join([word for word in seg_data if len(word) >= 2 and word not in load_stopwords()])
    return docu_process


if __name__ == "__main__":
    sentence = "小区物业没人管,垃圾也没人处理"
    sentence = extract_important_word(sentence)
    print(sentence)
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