Feature Reduction Based on Genetic Algorithm and Hybrid Model for Opinion Mining

Table 10

Result of type II error in percentage.

Dataset/method	Unigram, type II error (%)					Joint features, type II error (%)
	NB	LR	SVM	BSVM	BNB	NB	LR	SVM	BSVM	BNB
Book	25.27	41.75	23.07	17.58	18.68	26.37	35.16	21.97	15.38	23.07
DVD	21.00	22.00	21.00	20.00	17.00	22.00	33.00	23.00	20.00	19.00
Electronics	17.00	34.00	23.00	14.00	13.00	19.00	29.00	19.00	11.00	11.00
Kitchen	41.75	53.84	17.58	13.18	25.27	32.96	56.04	20.87	10.98	26.37
Movie	24.00	11.00	20.00	10.00	15.00	20.00	11.00	20.00	10.00	13.00