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DOI:
Journal of Software:2003.14(5):999-1004

基于内容过滤的个性化搜索算法
曾春,邢春晓,周立柱
(清华大学,计算机科学与技术系,北京,100084)
A Personalized Search Algorithm by Using Content-Based Filtering
ZENG Chun,XING Chun-Xiao,ZHOU Li-Zhu
()
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Received:October 21, 2002    Revised:December 04, 2002
> 中文摘要: 传统信息检索技术满足了人们一定的需要,但由于其通用的性质,仍然不能满足不同背景、不同目的和不同时期的查询请求.提出了一种基于内容过滤的个性化搜索算法.利用领域分类模型上的概率分布表达了用户的兴趣模型,然后给出了相似性计算和用户兴趣模型更新的方法.对比实验表明,概率模型比矢量空间模型更好地表达了用户的兴趣和变化.
Abstract:Traditional information retrieval technologies satisfy users’ need to a great extent. However, for their all-purpose characteristics, they can not satisfy any query from the different background, with the different intention and at the different time. A personalized search algorithm by using content-based filtering is presented in this paper. The user model is represented as the probability distribution over the domain classification model. A method of computing similarity and a method of revising user model are provided. Compared with the vector space model, the probability model is more effective on describing a user’s interests.
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基金项目:Supported by the National Natural Science Foundation of China under Grant No.60221120146 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.G1999032704 (国家重点基础研究发展规划(973)) Supported by the National Natural Science Foundation of China under Grant No.60221120146 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.G1999032704 (国家重点基础研究发展规划(973))
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曾春,邢春晓,周立柱.基于内容过滤的个性化搜索算法.软件学报,2003,14(5):999-1004

ZENG Chun,XING Chun-Xiao,ZHOU Li-Zhu.A Personalized Search Algorithm by Using Content-Based Filtering.Journal of Software,2003,14(5):999-1004