Stop Word Lists in Free Open-source Software Packages

WS 2018  ·  Joel Nothman, Hanmin Qin, Roman Yurchak ·

Open-source software packages for language processing often include stop word lists. Users may apply them without awareness of their surprising omissions (e.g. {``}hasn{'}t{''} but not {``}hadn{'}t{''}) and inclusions ({``}computer{''}), or their incompatibility with a particular tokenizer. Motivated by issues raised about the Scikit-learn stop list, we investigate variation among and consistency within 52 popular English-language stop lists, and propose strategies for mitigating these issues.

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