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» Discovering Conditional Functional Dependencies
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ICDE
2007
IEEE
146views Database» more  ICDE 2007»
14 years 6 months ago
Conditional Functional Dependencies for Data Cleaning
We propose a class of constraints, referred to as conditional functional dependencies (CFDs), and study their applications in data cleaning. In contrast to traditional functional ...
Philip Bohannon, Wenfei Fan, Floris Geerts, Xibei ...
SIGMOD
2009
ACM
140views Database» more  SIGMOD 2009»
14 years 5 months ago
Estimating the confidence of conditional functional dependencies
Conditional functional dependencies (CFDs) have recently been proposed as extensions of classical functional dependencies that apply to a certain subset of the relation, as specif...
Graham Cormode, Lukasz Golab, Flip Korn, Andrew Mc...
PVLDB
2008
111views more  PVLDB 2008»
13 years 4 months ago
Semandaq: a data quality system based on conditional functional dependencies
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 rep...
Wenfei Fan, Floris Geerts, Xibei Jia
ICDE
2008
IEEE
153views Database» more  ICDE 2008»
14 years 6 months ago
Increasing the Expressivity of Conditional Functional Dependencies without Extra Complexity
The paper proposes an extension of CFDs [1], referred to as extended Conditional Functional Dependencies (eCFDs). In contrast to CFDs, eCFDs specify patterns of semantically relate...
Loreto Bravo, Wenfei Fan, Floris Geerts, Shuai Ma
TODS
2008
111views more  TODS 2008»
13 years 4 months ago
Conditional functional dependencies for capturing data inconsistencies
Wenfei Fan, Floris Geerts, Xibei Jia, Anastasios K...