[1]GUO Xin-ming,YI Gai-zhen.A hybrid algorithm to track drift of user’s interests[J].CAAI Transactions on Intelligent Systems,2010,5(2):181-184.
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A hybrid algorithm to track drift of user’s interests

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 5 Number of periods: 2010 2 Page number: 181-184 Column: 学术论文—自然语言处理与理解 Public date: 2010-04-25
Title:
A hybrid algorithm to track drift of user’s interests
Author(s):
GUO Xin-ming;  YI Gai-zhen
School of Information Engineering, Xianyang Normal University, Xianyang 712000, China
Keywords:
personalization;  hybrid model;  interest drift;  forgetting function
CLC:
TP391.3
DOI:
-
Abstract:
User interests inevitably drift while using a personalized information service. A new forgetting function with normal distribution density was proposed to accommodate drift. The function conformed to a user interest forgetting law. User interest was defined in a hybrid model that contained both long and a shortterm components. The shortterm component was renewed by using the least recently used algorithm. The longterm component was renewed by using the normal incremental forgetting distribution algorithm. Experiments showed that the algorithm noted changes in user’s interests more quickly and tracked them more accurately, greatly improving the efficiency of personalized information services. 
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Last Update: 2010-05-24

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