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08-07-2008
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BNS Scaling: An Improved Representation over TF.IDF for SVM Text Classification
HPL-2007-32 (R.1) BNS Scaling: An Improved Representation over TF.IDF for SVM Text Classification - Forman, George
Keyword(s): text classification; topic identification; machine learning; feature selection; Support Vector Machine; TF*IDF text representation Abstract: In the realm of machine learning for text classification, TF.IDF is the most widely used representation for real-valued feature vectors. Unfortunately, it is oblivious to the training class labels, and naturally scales some features inappropriately. We replace IDF with Bi-Normal Separation (BNS), wh ... Full Report More... |
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