A Method of Drifting User’s Interests Based on Hybrid Model
Dong Xiangjun · Jisuanji gongcheng · 2006
This paper aims at the problem of combination of user’s interests and previous interests.It proposes a hybrid model based on concept correlations.In this hybrid model,user’s interests consist of long-term model and short-term model,and these two models adopt different algorithms to deal with the interest’s changes.Short-term model uses sliding window algorithm to deal with the sequence of the user’s interest samples.Long-term model uses gradual forgetting algorithm based on concepts correlations to calculate the interests’ weight.Experiment shows that this method is more efficient;it can not only trace the interest change of the user exactly,but also predict the interest of the users.