Click rate prediction model training method and device, search recall method and device, equipment and medium

• Main Author: CHEN WEITONG
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The embodiment of the invention provides a click rate prediction model training method and device, a search recall method and device, equipment and a medium. The scheme is as follows: acquiring a preset training set; performing feature extraction based on the sample spread point data and the sample article information of each sample article to obtain sample dense features and sample sparse features; taking the sample dense features and the sample sparse features as input data of a preset click rate prediction model, and outputting a predicted click rate of each sample article; calculating a loss value of the preset click rate prediction model; and when the loss value is greater than a preset loss value threshold, adjusting parameters of a preset click rate prediction model, and when the loss value is not greater than the preset loss value threshold, determining the current preset click rate prediction model as a trained click rate prediction model. Through the technical scheme provided by the embodiment of th