265 search results - page 7 / 53 » Tree-width and functional dependencies in databases |
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
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 ...
WEBDB
2009
Springer
14 years 2 months ago
2009
Springer
Recently, the opportunity of extracting structured data from the Web has been identified by a number of research projects. One such example is that millions of relational-style H...
CONSTRAINTS
2008
13 years 7 months ago
2008
We present a novel approach to automatically reformulating constraints defined as tables of allowed assignments to variables. Constraints of this form are common in a variety of se...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
This paper investigates the discovery of conditional functional dependencies (CFDs). CFDs are a recent extension of functional dependencies (FDs) by supporting patterns of semantic...
PVLDB
2008
13 years 7 months ago
2008
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...