6545 search results - page 128 / 1309 » Data quality assessment |
196
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DEDUCTIVE
1993
15 years 8 months ago
1993
This chapter discusses an extended deductive database prototype system, Q-Data, developed by Bellcore to improve data quality through data validation and cleanup. The key technolo...
128
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CAISE
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. Poor quality data may be detected and corrected by performing various quality assurance activities that rely on techniques with different efficacy and cost. In this pape...
206
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PAKDD
2005
ACM
16 years 10 days ago
2005
ACM
The usefulness of the results produced by data mining methods can be critically impaired by several factors such as (1) low quality of data, including errors due to contamination, ...
204
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WWW
2003
ACM
16 years 7 months ago
2003
ACM
This paper describes a novel approach for obtaining semantic interoperability among data sources in a bottom-up, semiautomatic manner without relying on pre-existing, global seman...
189
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PVLDB
2008
15 years 6 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...