所属分类:
多国语言处理
开发工具:Visual C++
文件大小:5KB
下载次数:38
上传日期:2010-11-09 06:37:53
说明: The tf–idf weight (term frequency–inverse document frequency) is a weight often used in information retrieval and text mining. This weight is a statistical measure used to evaluate how important a word is to a document in a collection or corpus. The importance increases proportionally to the number of times a word appears in the document but is offset by the frequency of the word in the corpus. Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document s relevance given a user query.
文件列表:
tf-idf.cpp,5417,2010-11-08
TFIDF.cpp,7737,2010-11-08
TFIDF.h,1666,2010-11-09