Opinion Mining from Online User Reviews Using Fuzzy Linguistic Hedges

Table 3

Accuracy of feature-based opinion classification using linguistic hedges.

Dataset	Approaches to feature-based classification using linguistic hedges
	Approach 1: valence points adjustment approach		Approach 2: Vo and Ock's fuzzy adjustment functions		Approach 3: our proposed method
	Binary classification accuracy (%)	Fine-grained classification accuracy (%)	Binary classification accuracy (%)	Fine-grained classification accuracy (%)	Binary classification accuracy (%)	Fine-grained classification accuracy (%)
Tablets	80.87	71.62	87.28	79.73	90.16	87.45
E-book readers	76.21	65.89	77.37	72.95	85.44	82.72
Smartphones	88.32	74.36	89.16	83.93	92.56	89.95
Laptops	84.26	73.32	86.67	79.65	88.67	85.77
Average	82.42	71.30	85.12	79.07	89.21	86.47