Document Normalization Revisited

机译：文件规范化重新审判

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摘要

Cosine Pivoted Document Length Normalization has reached a point of stability where many researchers indiscriminately apply a specific value of 0.2 regardless of the collection. Our efforts, however, demonstrate that applying this specific value without tuning for the document collection degrades average precision by as much as 20%.

机译：余弦枢转的文件长度归一化已经达到了稳定点，许多研究人员不分青红皂白地定的0.2的特定值，无论收集如何。但是，我们的努力证明，在不调整文件收集的情况下应用此特定值将平均精度降低多达20％。

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来源
《Annual international ACM SIGIR conference on research and development in information retrieval》|2002年||共2页
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作者
Abdur Chowdhury; M. Catherine McCabe; David Grossman; Ophir Frieder;
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原文格式 PDF
正文语种
中图分类情报检索;
关键词
information retrieval text search; similarity measure; relevance measure; TREC;

机译：信息检索文本搜索;相似度措施;相关性测量;TREC;

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Document Normalization Revisited

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