Integrated Classification Algorithm for Unbalanced Data Streams Based on Joint Nonnegative Matrix Factorization

Table 4

The accuracy of the two algorithms compared (unit: %).

Test	Text categorization		Disease diagnosis		Network intrusion detection
	Nonnegative matrix factorization	Ordinary decomposition	Nonnegative matrix factorization	Ordinary decomposition	Nonnegative matrix factorization	Ordinary decomposition
Test 1	78.34	20.12	63.34	25.45	80.34	19.45
Test 2	79.84	22.33	65.24	26.05	82.38	18.64
Test 3	77.65	23.74	64.92	25.84	84.23	19.56
Test 4	78.69	23.58	65.86	25.38	82.47	20.18
Test 5	78.82	21.83	64.38	23.12	83.23	20.23