一种基于语义的网络信息过滤三层模型设计  

The design of semantic based three-layer web information filtering model

作　　者：李美子[1] 李欣[2] 潘建国[1] 沈涤[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234 [2]泰山护理职业学院公共教学部计算机教研室,泰安271000

出　　处：《上海师范大学学报（自然科学版）》2017年第4期514-520,共7页Journal of Shanghai Normal University(Natural Sciences)

基　　金：国家自然科学基金(61572326;61103069);上海教委教育规划一般项目(C160049)

摘　　要：提出了一种面向网络信息的层次过滤模型及其体系架构,该模型分为本体过滤层、需求过滤层和兴趣过滤层.本体过滤层中,利用本体为基础对信息内容进行语义描述,实现信息的计算机理解与过滤;在需求过滤层,模型通过理解用户所提出的需求中所包含的语义,进而更加准确地通过过滤规则进行信息流过滤;在兴趣过滤层,用户兴趣通过特定方式表达,并通过语义相似度计算实现第三过滤层.Asemantic based three-layer web information filtering model and its architecture are presented, which comprises ontolo-gy filtering layer,requirement filtering layer,and interest filtering layer. In ontology filtering layer,contents of information are de-scribed formally based on ontology, and those information which cannot be understood by ontology can be recognized and filtered ; in requirement filtering layer,web information would be filtered through calculating the semantic similarity degrees between user requirements and information features;in interest filtering layer,the user interests are described based on formal semantic,and fur-ther, the information can be filtered by comparing the similarity of user interest and information content.

关 键 词：语义 信息过滤 层次模型 本体 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]