Table 3.

Retrieval results of Top 10–ranked images on validation data for visual similarity based on different distance metrics

Number of features (n)	MAP (10)
	Euclidean	City block	Cosine	Correlation	Spearman
50	0.4623	0.5158	0.4601	0.4610	0.4602
100	0.4754	0.5805	0.4747	0.4810	0.5406
200	0.4930	0.5816	0.4787	0.4953	0.5912
300	0.4981	0.5411	0.4785	0.4942	0.5744
400	0.5053	0.5727	0.4727	0.4769	0.5121