Title: On Improvement of Feature Weight Algorithm in Hierarchical Text Classification
Abstract:TFIDF(Term Frequency Inverse Documentation Frequency) is the main method of calculating the feature weight in text classification research,which ignores the distribution of feature words in text and t...TFIDF(Term Frequency Inverse Documentation Frequency) is the main method of calculating the feature weight in text classification research,which ignores the distribution of feature words in text and the length of the text.To solve the problem,this paper proposes the N-TFIDF algorithm to amend the weight calculation of the feature words and proves its validation by using the Classifier.The result shows that the N-TFIDF method of recall and precision rates are better than TFIDF.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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