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ICDE
2010
IEEE
311views Database» more  ICDE 2010»
14 years 2 months ago
Detecting Inconsistencies in Distributed Data
— One of the central problems for data quality is inconsistency detection. Given a database D and a set Σ of dependencies as data quality rules, we want to identify tuples in D ...
Wenfei Fan, Floris Geerts, Shuai Ma, Heiko Mü...
DEXA
2009
Springer
167views Database» more  DEXA 2009»
13 years 12 months ago
Analyses and Validation of Conditional Dependencies with Built-in Predicates
Abstract. This paper proposes a natural extension of conditional functional dependencies (cfds [14]) and conditional inclusion dependencies (cinds [8]), denoted by cfdp s and cindp...
Wenguang Chen, Wenfei Fan, Shuai Ma
ICDE
2012
IEEE
223views Database» more  ICDE 2012»
11 years 7 months ago
Incremental Detection of Inconsistencies in Distributed Data
—This paper investigates the problem of incremental detection of errors in distributed data. Given a distributed database D, a set Σ of conditional functional dependencies (CFDs...
Wenfei Fan, Jianzhong Li, Nan Tang, Wenyuan Yu
BNCOD
2009
182views Database» more  BNCOD 2009»
13 years 6 months ago
Conditional Dependencies: A Principled Approach to Improving Data Quality
Real-life date is often dirty and costs billions of pounds to businesses worldwide each year. This paper presents a promising approach to improving data quality. It effectively det...
Wenfei Fan, Floris Geerts, Xibei Jia
PVLDB
2008
123views more  PVLDB 2008»
13 years 4 months ago
Propagating functional dependencies with conditions
The dependency propagation problem is to determine, given a view defined on data sources and a set of dependencies on the sources, whether another dependency is guaranteed to hold...
Wenfei Fan, Shuai Ma, Yanli Hu, Jie Liu, Yinghui W...