61 search results - page 1 / 13 » Mining Violations to Relax Relational Database Constraints |
DAWAK
2009
Springer
13 years 9 months ago
2009
Springer
Frequent constraint violations on the data stored in a database may suggest that the semantics of the represented reality is changing. In this work we propose a methodology and a t...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...
TC
1997
13 years 6 months ago
1997
In this paper we describe a new approach to repairing violations of integrity constraints in databases with null values. By adopting basic concepts from model-based diagnosis, we ...
KDD
2005
ACM
13 years 10 months ago
2005
ACM
Relational graphs are widely used in modeling large scale networks such as biological networks and social networks. In this kind of graph, connectivity becomes critical in identif...
PKDD
2005
Springer
13 years 10 months ago
2005
Springer
Considering the characteristics of biological sequence databases, which typically have a small alphabet, a very long length and a relative small size (several hundreds of sequences...