File recommendation method and device and server

The invention relates to a file recommendation method and device and a server, which belong to the technical field of computers. The method comprises the steps that in response to a received file recommendation request, account features of a first account requesting file recommendation and overall file features of multiple to-be-recommended files are acquired; a first target vector is generated based on the account features and the overall file features, wherein the first target vector is used for judging an interaction behavior executed by the first account on the to-be-recommended file; according to the first target vector, the interest feature of the first account and the state transition feature, a current file is determined from the plurality of to-be-recommended files in sequence, and after the current file is determined each time, the current state transition feature is updated based on the current file; and a first file sequence is determined according to the determination sequence of the current file