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我试图使用https://github.com/boudinfl/pke模块提取关键短语。当我运行它一次它完美地工作。但是当我多次运行它时，它会发出以下错误。ZeroDivisionError：浮点除以零

我的代码如下。

extractor = TopicRank()
def key_phrase_extract(path_to_json):
   //get_temp_text.txt from json
   extractor.load_document(input='temp_text.txt', language="en", max_length=10000000,
                        normalization='stemming')
   extractor.candidate_selection(pos={'NOUN', 'PROPN', 'ADJ'},stoplist=stoplist)
   extractor.candidate_weighting(threshold=0.74,
                                  method='average')
   kpe_results = []
   for (keyphrase, score) in extractor.get_n_best(n=10, stemming=True):
      kpe_results.append([keyphrase, score])
   print(kpe_results)

for each_json in json_list()
    key_phrase_extract('each_json')

它为第一个 json 文件完美运行，但是在启动第二个文件时它给了我 ZeroDivisionError: float division by zero

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1 回答 1

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我能够解决这个问题。问题是在函数之外初始化提取器。

def key_phrase_extract(path_to_json):
   extractor = TopicRank()
   //get_temp_text.txt from json
   extractor.load_document(input='temp_text.txt', language="en", max_length=10000000,
                        normalization='stemming')
   extractor.candidate_selection(pos={'NOUN', 'PROPN', 'ADJ'},stoplist=stoplist)
   extractor.candidate_weighting(threshold=0.74,
                                  method='average')
   kpe_results = []
   for (keyphrase, score) in extractor.get_n_best(n=10, stemming=True):
      kpe_results.append([keyphrase, score])
   print(kpe_results)

for each_json in json_list()
    key_phrase_extract('each_json')
于 2020-02-15T13:43:54.630 回答