ANMAT: Automatic Knowledge Discovery and Error Detection through Pattern Functional Dependencies
ANMAT: Automatic Knowledge Discovery and Error Detection through Pattern Functional Dependencies
复制标题
ANMAT:通过模式功能依赖性自动知识发现和错误检测
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
M. Stonebraker
中科院分区:
文献类型:
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作者:
A. Qahtan;N. Tang;M. Ouzzani;Yang Cao;M. Stonebraker
Knowledge discovery is critical to successful data analytics. We propose a new type of meta-knowledge, namely pattern functional dependencies (PFDs), that combine patterns (or regex-like rules) and integrity constraints (ICs) to model the dependencies (or meta-knowledge) between partial values (or patterns) across different attributes in a table. PFDs go beyond the classical functional dependencies and their extensions. For instance, in an employee table, ID "F-9-107', "F' determines the finance department. Moreover, a key application of PFDs is to use them to identify erroneous data; tuples that violate some PFDs. In this demonstration, attendees will experience the following features: (i) PFD discovery -- automatically discover PFDs from (dirty) data in different domains; and (ii) Error detection with PFDs -- we will show errors that are detected by PFDs but cannot be captured by existing approaches.
影响因子:
1.8
作者:
Fan, Wenfei;Geerts, Floris;Kementsietsidis, Anastasios
通讯作者:
Kementsietsidis, Anastasios