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PODS
2010
ACM
14 years 19 days ago
2010
ACM
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
POPL
1995
ACM
13 years 11 months ago
1995
ACM
Program slicing is a technique for isolating computational threads in programs. In this paper, we show how to mechanically extract a family of practical algorithms for computing s...
ATAL
2007
Springer
14 years 1 months ago
2007
Springer
Ontology matching is currently a key technology to achieve the semantic alignment of ontological entities used by knowledge-based applications, and therefore to enable their inter...
WIDM
2003
ACM
14 years 24 days ago
2003
ACM
At the present time, several shortcomings prevent the more effective use and more intense application of web information systems. Recent developments that are subsumed by the term...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
We present YAGO, a light-weight and extensible ontology with high coverage and quality. YAGO builds on entities and relations and currently contains more than 1 million entities a...