摘要
本文通过资源的表达、用户兴趣文件的表达和匹配技术来研究矢量空间模型表示法和概率模型表示法 ,提出了一个改进的概率模型表示法 。
With the development of network,the problem of information overloading appeared more and more serious.In order to provide personalized and practical information to users,the technology of information filtering has became an important method in personalized information service.This paper puts forward an improved probability model,by studying on keyword vector space model and probability model in three respects such as expressing source,expressing user' interests and information matching method.
出处
《情报科学》
CSSCI
北大核心
2005年第1期131-133,共3页
Information Science