piskvorky/gensim

bug in gensim.summarization.mz_entropy.mz_keywords

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#2,523 建立於 2019年6月10日

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 (1 留言) (1 反應) (0 負責人)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)

貢獻者指南

技術棧
python
領域
data
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
under 1 hour
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Pythonbasic knowledge of gensim summarization module
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
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.