In the paper we designed an improved user＇ s interests drifting approach based on implicit feedback for dealing with the＂ limita- tion of excursion policy in building and updating step of user＇ s interest model. In this model, user＇ s interests consist of long-term and short- term. For short-term interests we use sliding window algorithm to deal with its updating. For long-term interests the gradual forgetting algorithm based on least recently used algorithm is used. Contrast experiments of accuracy were made on the model and the gradual fo...
