Method and apparatus for object preference prediction, and computer readable medium

An apparatus for object preference prediction, comprising:

• an evaluation information acquiring module, configured to acquire evaluation information indicating preference values of partial users in a user set for partial objects in an object set;
• an auxiliary information acquiring module, configured to acquire auxiliary information of at least one of the user set and the object set, wherein the auxiliary information indicates an attribute of at least one of a corresponding user in the user set and a corresponding object in the object set;
• a feature representation determining module, configured to determine a user feature representation and an object feature representation using a matrix decomposition model, based on the evaluation information and the auxiliary information;
• and
• a preference prediction determining module, configured to determine a preference prediction value of a target user in the user set for a target object in the object set based on the user feature representation and the object feature representation, wherein a preference value of the target user for the target object is not indicated in the evaluation information,
• wherein the auxiliary information comprises at least one of object non-hierarchical information, object hierarchical information, user non-hierarchical information and user hierarchical information,
• the object non-hierarchical information indicates non-hierarchical attributes of the respective objects in the object set, the object hierarchical information indicates a plurality of attributes, which have a hierarchical relationship, of the respective objects in the object set, the user non-hierarchical information indicates non-hierarchical attributes of the respective users in the user set, and the user hierarchical information indicates a plurality of attributes, which have a hierarchical relationship, of the respective users in the user set.