Cross-modal Hash model training method and device, cross-modal Hash model coding method and device and electronic equipment

The invention provides a cross-modal Hash model training method, a cross-modal Hash model coding method, a cross-modal Hash model coding device and electronic equipment. The method relates to the technical field of artificial intelligence, and comprises the following steps: calling a cross-modal Hash model to carry out dimension reduction Hash coding processing on a plurality of obtained sample pairs to obtain a plurality of Hash coding pairs; for each Hash code pair, determining a target data Hash point with a relatively large weight in the Hash data point pair at each position in the Hash code pair, and determining a binary code of the Hash code pair based on each target Hash data point; based on each hash code pair, the similarity matrix corresponding to the plurality of sample pairs, and the difference between each hash code pair and the corresponding binary code, determining the total quantization loss of the cross-modal hash model; and updating parameters of the cross-modal hash model based on the total