Deep Hashing Based Fusing Index Method for Large-Scale Image Retrieval

Table 2

Accuracy in terms of MAP compared to hashing methods.

Method	CIFAR-10				NUS-WIDE
	12 bits	24 bits	32 bits	48 bits	12 bits	24 bits	32 bits	48 bits
SH	0.127	0.128	0.126	0.129	0.454	0.406	0.405	0.400
ITQ	0.162	0.169	0.172	0.175	0.452	0.468	0.472	0.477
SPLH	0.171	0.173	0.178	0.184	0.568	0.589	0.597	0.601
LFH	0.176	0.231	0.211	0.253	0.571	0.568	0.568	0.585
KSH	0.303	0.337	0.346	0.356	0.556	0.572	0.581	0.588
SDH	0.285	0.329	0.341	0.356	0.568	0.600	0.608	0.637
FastH	0.305	0.349	0.369	0.384	0.621	0.650	0.665	0.687
CNNH	0.439	0.476	0.472	0.489	0.611	0.618	0.625	0.608
NINH	0.552	0.566	0.558	0.581	0.674	0.697	0.713	0.715
DHN	0.555	0.594	0.603	0.621	0.708	0.735	0.748	0.758
DSH	0.616	0.651	—	0.661	0.548	0.551	—	0.562
DPSH	0.713	0.727	0.744	0.757	0.747	0.822	0.838	0.845
DHFI	0.613	0.750	0.768	0.774	0.807	0.836	0.854	0.860