A Microblog User Interest Model Based on Participated and Not Participated Data

Abstract

Abstract. Oriented to the social network and media such as micro-blog, this paper presents a constructing way of user interest model. Based on the date whether user participated or not, user interest was divided into participated part and not-participated part. Instead of gaining friends' interests and then considering the immediate effect towards user's interest, the influence of friends' interests take effects through the long-term friends-generated user-participated data explicitly and the short-term friends-generated user-not participated data implicitly. Forgetting mechanism helped modelling the user interest drift. Simulated experiments verify the proposed user interest modelling method is effective and the not participated data plays a more important role than the participated data.