Multi-mode-based user interest recommendation method and related equipment

The embodiment of the invention provides a multi-mode-based user interest recommendation method and related equipment. The multi-modal-based user interest recommendation method comprises the following steps: acquiring a user multi-domain vector; the user multi-domain vector is input into a multi-mode spectrum characterization model of a multi-service domain, the multi-mode spectrum characterization model outputs projection distance data, and the projection distance data comprises the user multi-domain vector and the projection distance of each multi-mode interest spectrum characterization base vector in a multi-mode interest spectrum characterization base vector group; and according to the projection distance data, determining whether the user is interested in the corresponding service domain. According to the method, the interest degree of each user in each new business domain can be judged through the projection distance data, the method has wide universality, and the problem that an existing user interest