piskvorky/gensim

bug in gensim.summarization.mz_entropy.mz_keywords

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#2,523 创建于 2019年6月10日

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 (1 评论) (1 反应) (0 负责人)Python (15,144 star) (4,349 fork)batch import
Hacktoberfestbugdifficulty easygood first issueimpact LOWreach LOW

描述

Problem statement:

It seems to be a bug if the text is too short and number of words is lower than blocksize. In my case the values were: n_words (232.0) and blocksize (1024).

Log:

gensim\summarization\mz_entropy.py:127: RuntimeWarning: invalid value encountered in double_scalars
  - __log_combinations(n_words, blocksize)

Dirty solution:

Override blocksize value from the default 1024 to something lower:

mz_keywords(text, blocksize=128)

贡献者指南

技术栈
python
领域
data
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
2
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
under 1 hour
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Pythonbasic knowledge of gensim summarization module
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
70
研究方向
The bug occurs at gensim/summarization/mz entropy.py line 127 when n words (or num words) is less than blocksize. The fix should check if n words < blocksize and either adjust blocksize or skip the division. The issue mentions overriding blocksize as a dirty solution, but a proper fix would involve handling this edge case in the function. Look at the function signature and the log combinations helper to understand the math. Consider raising a warning or adjusting blocksize automatically.