一种基于RDF的多值信息系统查询算法  

A RDF-Based Query Algorithm of Multi-Valued Systems

作　　者：黄晓涛[1] 李日晖[1] 卢正鼎[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与科学》2007年第8期68-70,共3页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(60403027);湖北省自然科学基金资助项目(2005ABA258);软件工程国家重点实验室开放基金资助项目(SKLSE05-07)

摘　　要：多值信息系统具有实例属性取多值的特点,其查询的关键在于衡量查询条件集合的等价集和实例属性值集合的等价集之间的相似性。本文提出了一种多值信息系统的查询算法,该算法综合考察了集合比较涉及到的三个关键因素,在一定程度上减少了结果中不合理的实例,即其属性值集合与查询集合数目相差过大,也降低了非法输入数据对查询的干扰。大量的实验数据证明了算法的可行性和有效性。The key problem in the query of multi-valued systems is to work out the similarity between the querying set and the set of attribute values. In this paper, three key factors in set comparison are taken into consideration in the query algorithm which can not only decrease the number of irrational results but also reduce the jamming of illegal data to a certain degree. Three typical computational simulations are presented according to the three key factors in set comparison. The simulation results show the feasibility and effectiveness of the proposed query algorithm.

关 键 词：RDF 多值信息系统 信息查询 粗糙集 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]