Alternate Low-Rank Matrix Approximation in Latent Semantic Analysis

Table 3

The accuracy of the returned documents by the SVD and the TULVD for the ADI collection.

k	SVD			TULVD
	Min Cosine Similarity	Precision (10%)	Precision (50%)	Min Cosine Similarity	Precision (10%)	Precision (50%)
5	0.162	22.3	12.6	0.0884	21.3	14.1
10	0.119	31.1	18.6	0.0225	31.5	17.3
20	0.105	39.4	23.8	0.0101	34.7	19.9
30	0.103	55.3	29.0	0.0086	46.6	20.2
40	0.102	58.9	32.8	0.0071	69.3	32.1
50	0.101	73.5	33.1	0.0034	70.2	37.6
60	0.101	71.2	39.7	0.0008	65.3	37.9
70	0.100	69.2	39.3	0.0007	53.8	36.2
82	0.100	50.0	41.2	0.0003	49.3	29.1