Cooperative propagation method based on multi-platform group cognition rule

The invention discloses a cooperative propagation method based on a multi-platform group cognition rule, and the method comprises the steps: retrieving a project and a nearest neighbor project node in an auxiliary domain of the project from a knowledge graph for each current project, obtaining the offline features of the current project and the retrieved nearest neighbor project, carrying out the attention fusion of the features, and obtaining an attention fusion result; kG-based knowledge transfer features are generated; for each user, attention is paid to historical interaction information, features of historical interaction items of the target user after knowledge transfer are obtained, and attention fusion is carried out on the features to obtain features related to historical interaction; through domain-level attention, in combination with KG-based embedding and user item embedding in a target domain, features fused with auxiliary multi-platform information are obtained and are finally used for predictio