The invention belongs to the technical field of sequence recommendation and forgetting learning, and discloses a sequence recommendation
system forgetting learning method based on structure
perception, which comprises the following steps: aiming at polluted interaction data in a sequence
recommendation model, evaluating influence characteristics of each polluted item through a double-index quantitative diagnosis mechanism; wherein the sequence influence range index SIS quantifies the
pollution through predicting the propagation degree of a dependency relationship and the
sequence structure dependency index SSD, and evaluates the structural importance of a project on maintaining the sequence
time sequence coherence from global and local levels; an adaptive
fine tuning strategy is executed based on the SIS and the SSD obtained through diagnosis, influence decoupling suppression
pollution propagation and intensity are controlled by the SIS,
adaptive interpolation is carried out between isolation and restoration strategies according to an SSD value in structure compensation, and further, the generalization ability of a model on clean data is kept by keeping loss; according to the method, targeted intervention is achieved, the
sequence structure integrity is kept while effective
pollution is eliminated, and recommendation performance and credibility are maintained.