254 search results - page 31 / 51 » On the Limitations of Provenance for Queries With Difference |
DASFAA
2010
IEEE
14 years 2 months ago
2010
IEEE
Compression in column-oriented databases has been proven to offer both performance enhancements and reductions in storage consumption. This is especially true for read access as c...
OTM
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Ontologies have become very popular in life sciences and other domains. They mostly undergo continuous changes and new ontology versions are frequently released. However,...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Address geocoding, the process of finding the map location for a structured postal address, is a relatively well-studied problem. In this paper we consider the more general proble...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
In the classical database world, information access has been based on a paradigm that involves structured, schema-aware, queries and tabular answers. In the current environment, h...
SIGMOD
1996
ACM
13 years 11 months ago
1996
ACM
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...