Research Article

Improved Deep Hashing with Scalable Interblock for Tourist Image Retrieval

Table 4

The value of MAP for cross-datasets evaluation.

MethodCifar-10Flickr30
12 bits24 bits32 bits48 bits12 bits24 bits32 bits48 bits

ITQ0.0270.0320.0350.0340.0400.0510.0660.070
LSH0.0280.0340.0410.0420.0510.0640.0770.089
PCAH0.0380.0450.0600.0710.0570.0690.0720.078
SH0.0190.0240.0270.0330.0170.0180.0190.022
DSH0.0580.0700.0730.0780.0690.0920.1040.109
CNNH0.0870.0920.0890.0900.0950.1050.1010.104
DLBHC0.0950.1010.1120.1150.1020.1070.1050.119
DNNH0.0890.1050.1040.1070.1070.1050.1120.116
Ours0.1050.1130.1120.1150.1340.1420.1470.145