Improved Deep Hashing with Scalable Interblock for Tourist Image Retrieval

Table 2

The value of MAP for different methods on the China-60 dataset.

Method	China-60
	32 bits	64 bits	128 bits	256 bits
CBE-rand	0.329	0.473	0.618	0.681
CBE-opt	0.338	0.496	0.628	0.694
ITQ	0.681	0.794	0.804	0.813
LSH	0.314	0.483	0.597	0.691
PCAH	0.515	0.614	0.415	0.278
SH	0.102	0.234	0.302	0.293
PCA-RR	0.517	0.652	0.694	0.728
DSH	0.238	0.283	0.397	0.465
DLBHC	0.814	0.841	0.856	0.849
DNNH	0.839	0.864	0.860	0.862
Ours	0.895	0.907	0.912	0.903