Zheng Zhang*, Shu Zhou
Journal of New Media, Vol.3, No.2, pp. 73-80, 2021, DOI:10.32604/jnm.2021.018923
Abstract The development of various applications based on social network text
is in full swing. Studying text features and classifications is of great value to
extract important information. This paper mainly introduces the common feature
selection algorithms and feature representation methods, and introduces the basic
principles, advantages and disadvantages of SVM and KNN, and the evaluation
indexes of classification algorithms. In the aspect of mutual information feature
selection function, it describes its processing flow, shortcomings and
optimization improvements. In view of its weakness in not balancing the positive
and negative correlation characteristics, a balance weight attribute factor and
feature difference factor… More >
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