Vague-based paraconsistent database

Computer Engineering and Applications ›› 2013, Vol. 49 ›› Issue (20): 103-107.

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Vague-based paraconsistent database

HUANG Hui1, MAO Yuguang2，3

1.College of Computer Science and Engineering, Sanjiang University, Nanjing 210012, China
2.College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
3.State Key Lab for Novel Software Technology, Nanjing University, Nanjing 210093, China

Online:2013-10-15 Published:2013-10-30

基于Vague集的次协调数据库的研究

黄慧1，毛宇光2，3

1.三江学院计算机科学与工程学院，南京 210012
2.南京航空航天大学信息科学与技术学院，南京 210016
3.南京大学计算机软件新技术重点实验室，南京 210093

Abstract

Abstract: Paraconsistent database is introduced to manipulate incomplete and inconsistent data in database. In this article, it extends the application of this database by introducing the concept of Vague set and redefining the relation operators such as selection, projection, join and decision, which still enables the database to search the contradictory information, then it manipulates the corresponding information with PQL to decide which side of contradiction should take.

Key words: paraconsistent database, Vague, inconsistent information, PQL language

摘要： 次协调数据库的数据模型是用来处理数据库中不完全信息和矛盾信息。基于这种数据模型，将Vague集的概念引入，并基于新模型重新定义选择、投影、连接及decision等运算，再使用基于Vague集的次协调数据库的查询语言（PQL）查询矛盾信息并作出决策以解决矛盾，从而扩展了传统次协调数据库模型的应用。

关键词: 次协调数据库, Vague, 不一致信息, PQL语言

HUANG Hui1, MAO Yuguang2，3. Vague-based paraconsistent database[J]. Computer Engineering and Applications, 2013, 49(20): 103-107.

黄慧1，毛宇光2，3. 基于Vague集的次协调数据库的研究[J]. 计算机工程与应用, 2013, 49(20): 103-107.

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Vague-based paraconsistent database

基于Vague集的次协调数据库的研究

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