不一致数据库的源感知修复

2009 First International Confernce on Advances in Databases, Knowledge, and Data Applications Pub Date : 2009-03-01 DOI:10.1109/DBKDA.2009.15

N. Viswanath, Rajshekhar Sunderraman

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引用次数: 3

摘要

从一个不一致的数据库中提取一致的查询答案的问题主要从两个方向来解决:“修复”数据库或重写查询以便只返回一致的答案。具有显式否定的逻辑规划已被广泛用于指定修理，使修理程序的每个答案集对应于一个修理。在本文中，我们探讨了从数据库中获得所谓的“首选修复”的问题，该数据库既不一致又不完整，基于对获取信息的来源的偏好。我们展示了当源信息可用时，如何使用逻辑程序指定首选修复。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Source-Aware Repairs for Inconsistent Databases

The problem of extracting consistent query answers from an inconsistent database has been mainly approached from two directions: “repairing” the database or rewriting queries so that only consistent answers are returned. Logic programming with explicit negation has been widely used in order to specify repairs such that each answer set of the repair program corresponds to a repair. In this paper, we explore the problem of obtaining so called “preferred repairs” from a database that is both inconsistent and incomplete based on preferences for the source from which the information is obtained. We show how a preferred repair might be specified using logic programs when source information is available.

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来源期刊

2009 First International Confernce on Advances in Databases, Knowledge, and Data Applications

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