Semandaq: a data quality system based on conditional functional dependencies

Semandaq: a data quality system based on conditional functional dependencies
复制标题

DOI:
10.14778/1454159.1454200
复制
发表时间:
2008-08
期刊:
Proc. VLDB Endow.
影响因子:
--
通讯作者:
W. Fan;Floris Geerts;X. Jia
W. Fan;Floris Geerts;X. Jia
中科院分区:
其他
文献类型:
--
作者:
W. Fan;Floris Geerts;X. Jia

文献摘要

被引文献

相似文献

我们推出了 Semandaq,一个用于提高关系数据质量的原型系统。基于最近提出的条件函数依赖(CFD),它可以检测并修复因违反这些约束而出现的错误和不一致。我们演示了 Semandaq 支持的以下功能:(a) 用于指定 CFD 的接口; (b) 一个可视化工具,利用高效的基于 SQL 的技术,自动检测关系数据中的 CFD 违规行为; (c) 广泛的可视化数据探索能力,为用户提供各种数据质量衡量标准; (d) 修复(清洁)功能,无需过多的人机交互,建立在基于 CFD 的清洁算法之上;我们展示了 Semandaq 如何允许对所获得的修复质量进行自然探索。 Semandaq 是一个很有前途的工具,它为任何关系数据库系统提供易于访问和用户友好的数据质量设施。
We present Semandaq, a prototype system for improving the quality of relational data. Based on the recently proposed conditional functional dependencies (CFDs), it detects and repairs errors and inconsistencies that emerge as violations of these constraints. We demonstrate the following functionalities supported by Semandaq: (a) an interface for specifying CFDs; (b) a visual tool for automated detection of CFD violations in relational data, leveraging efficient SQL-based techniques; (c) extensive visual data exploration capabilities that provide the user with various measures of the quality of the data; (d) repair (cleaning) functionality without excess human interaction, built upon CFD-based cleaning algorithms; we show how Semandaq allows for a natural exploration of the quality of the obtained repairs. Semandaq is a promising tool that provides easy access and user-friendly data quality facilities for any relational database system.