运用查询扩展技术的网民言论与舆论话题相关性研究  

Correlation study of netizens opinion and topic of public opinion using inquiry expansion technology

作　　者：吴越[1] 周安民[1] 丁雪峰[1] 胡勇[1] 

机构地区：[1]四川大学信息安全研究所,成都610064

出　　处：《计算机应用研究》2011年第3期1145-1147,1151,共4页Application Research of Computers

基　　金：中国信息安全产品测评认证中心资助项目

摘　　要：为准确判断网民言论与所关注话题的相关性,根据输入的关键词,运用查询扩展技术设计特征项提取和赋权算法,构造了话题向量空间模型,并提出网络舆论话题相关性算法。通过仿真实验验证话题相关性算法的有效性。该研究成果对于网络舆论分析具有应用价值。In order to accurately judge the relevance of the netizen＇s opinion and the topic people cared of,this paper took the key words input as the foundation,designed a characteristic item extraction and empowerment algorithm by inquiry expansion technology,constructed a topic vector space model and proposed a kind of computational method of the network public opinion topic relevance.It verifies the effectiveness of topic relevance distinction calculation method through simulation experiments.The research has application value for network public opinion analysis.

关 键 词：话题相关性 查询扩展技术 特征项 赋权 向量空间模型 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术] TP391[自动化与计算机技术—计算机科学与技术]