关键词: 用户行为相似度, 文本语义相似度, 相似性度量, EMD距离

Abstract: The similarity measure of user behavior based on behavior sequence had not considered the semantic similarity index of activity.To solve this problem,a new algorithm of user behavior similarity measurement was proposed which supported activity semantics.Specifically,the similarity of activities was calculated by combining adjacency relation with label text semantics between activities;the edit weight function and the behavior sequence distance were defined;the users'behavior was modeled with behavior sequence multiple sets and the similarity of user behavior was calculated with Earth Mover's Distance (EMD).The feasibility and effectiveness of the proposed method were verified by comparing with the current mainstream algorithms in terms of measurement properties,satisfiability and experimental evaluation of real data sets.

Key words: user behavior similarity, text semantic similarity, similarity measure, earth mover's distance