Abstract: A method for training a click rate prediction model includes: obtaining sample feature information and a label value, in which the sample feature information includes feature information of a sample user and feature information of a target object, and the label value is configured to indicate whether the sample user interacts with the target object; obtaining a plurality of adjacent matrixes for feature interaction by processing the feature information of the target object based on the hypernetwork module; obtaining a click rate prediction value of the sample user on the target object using the prediction module, according to the sample feature information and the plurality of adjacent matrixes; and training the click rate prediction model according to the label value and the click rate prediction value.

Abstract: A combined multifunctional double-rotor motor includes a housing, a first output shaft, a first rotor assembly, and a first stator assembly. The first stator assembly and the first rotor assembly are arranged opposite and separated from each other, and the front end of the first output shaft extends out of the housing. A second stator assembly is detachably connected to the rear part of the housing. The first output shaft is hollow, and a second output shaft is coaxially and rotatably arranged in the first output shaft. The rear end of the second output shaft is fixedly connected to a bowl-shaped casing having a front end opening, and the casing is located outside the housing. The second stator assembly is located in the casing, and the inner sidewall of the casing is fixedly provided with outer rotor magnetic tiles corresponding to the second stator assembly.

Abstract: A nucleic acid isothermal amplification method is based on a polymerase spiral reaction using only one pair of primers. The method employs a self-spiraling amplification method, and has a high amplification efficiency.

Abstract: A nucleic acid isothermal amplification method is based on a polymerase spiral reaction using only one pair of primers. The method employs a self-spiraling amplification method, and has a high amplification efficiency.