Table 2.

The MAP protocols on MIRFLICKR25K, NUS-WIDE, and MS-COCO (MAP@ALL). Results are indicated in bold. ‘/’ denotes unavailable results, and ‘*’ indicates results cited from the original paper.

Task	Method	MIRFLICKR-25K			NUS-WIDE			MS-COCO
		16 bits	32 bits	64 bits	16 bits	32 bits	64 bits	16 bits	32 bits	64 bits
I2T	DCMH [5]	0.7323	0.7432	0.7502	0.5248	0.6000	0.6197	0.5179	0.5314	0.5472
	CMHH [6]	0.6863	0.6901	0.6887	0.5233	0.5171	0.5236	0.5530	0.5461	0.4714
	AGAH [7]	0.7006	0.7241	0.6912	0.3945	0.4107	0.4258	0.5501	0.5515	0.5518
	CPAH [8]	0.8063	0.8237	0.8305	0.5686	0.6207	0.6342	0.5949	0.6426	0.6448
	DADH [14]	0.7333	0.7449	0.7496	0.5953	0.6084	0.6030	0.5750	0.5788	0.5755
	SCAHN [17]	0.7828	0.7942	0.8021	0.6550	0.6580	0.6744	0.6479	0.6426	0.6431
	DCHUC [21]	0.7358	0.7464	0.7427	0.6159	0.6460	0.6755	0.5282	0.5489	0.5338
	MESDCH [25]	0.7898	0.8032	0.8153	0.6607	0.6832	0.6968	0.6590	0.6960	0.7212
	SCCGDH [20]	0.7748	0.7949	0.7933	0.6770	0.6931	0.6977	0.6044	0.6351	0.6647
	MIAN [19]	0.8044	0.8178	0.8183	0.6303	0.6433	0.6374	0.5856	0.6121	0.6131
	GCDH [42]	0.8373	0.8545	0.8630	0.7136	0.7263	0.7424	0.7268	0.7630	0.7826
	DAPH * [18]	/	/	/	/	0.6840	0.6930	0.6870	0.7180	/
	MAFH [24]	0.7981	0.8168	0.8263	0.6367	0.6422	0.6582	0.6044	0.6689	0.6871
	DSPH [23]	0.8016	0.8301	0.8446	0.6847	0.7015	0.7125	0.6864	0.7493	0.7704
	Ours	0.8484	0.8665	0.8740	0.7052	0.7236	0.7356	0.7542	0.8021	0.8219
T2I	DCMH [5]	0.7554	0.7716	0.7788	0.5545	0.5903	0.5957	0.5508	0.5883	0.6049
	CMHH [6]	0.6809	0.7134	0.7012	0.4795	0.4541	0.4668	0.4847	0.4980	0.5053
	AGAH [7]	0.6873	0.7496	0.7478	0.4344	0.3980	0.4382	0.5012	0.5146	0.5191
	CPAH [8]	0.7947	0.8064	0.8082	0.5605	0.5686	0.6053	0.5891	0.6384	0.6413
	DADH [14]	0.7641	0.7748	0.7813	0.5631	0.5609	0.5711	0.4767	0.4819	0.4921
	SCAHN [17]	0.7845	0.7956	0.7997	0.6692	0.6715	0.6795	0.6470	0.6430	0.6396
	DCHUC [21]	0.7522	0.7712	0.7708	0.6356	0.6795	0.7019	0.5220	0.5269	0.5185
	MESDCH [25]	0.7741	0.7898	0.7991	0.6662	0.6840	0.6977	0.6345	0.6737	0.7019
	SCCGDH [20]	0.7622	0.7785	0.7903	0.6759	0.7072	0.7115	0.5949	0.6427	0.6475
	MIAN [19]	0.7947	0.8013	0.8082	0.6486	0.6685	0.6586	0.5459	0.5997	0.5940
	GCDH [42]	0.8103	0.8230	0.8319	0.7195	0.7348	0.7474	0.7219	0.7597	0.7845
	DAPH * [18]	/	/	/	/	0.6770	0.6890	0.7030	0.7300	/
	MAFH [24]	0.7841	0.7982	0.8006	0.6357	0.6480	0.6542	0.5963	0.6733	0.6912
	DSPH [23]	0.7972	0.8133	0.8351	0.7025	0.7177	0.7315	0.6921	0.7520	0.7714
	Ours	0.8238	0.8406	0.8481	0.7403	0.7578	0.7665	0.7593	0.8044	0.8263