Application of an Improved TF-IDF Method in Literary Text Classification

Table 2

Experimental results of different feature selection and feature weight algorithms.

Feature selection algorithm	Feature weight algorithm	/%	R%	F1/%
Chi-square statistics (CS)	TF-IDF	83.20	84.93	83.87
	Improved TF-IDF	85.41	86.62	85.10
Mutual information (MI)	TF-IDF	81.95	82.71	83.37
	Improved TF-IDF	83.04	83.86	82.54
Information gain (IG)	TF-IDF	82.23	82.94	82.65
	Improved TF-IDF	83.46	84.33	84.63