2492 search results - page 270 / 499 » Ontology-based Database Access |
186
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VLDB
1995
ACM
15 years 10 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...
172
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SIGMOD
1991
ACM
15 years 10 months ago
1991
ACM
This paper presents an architecture for a persistent object store in which multi-level storage is explicitly included. Traditionally, DBMSs have assumed that all accessible data r...
170
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EDBT
2006
ACM
15 years 8 months ago
2006
ACM
Random sampling is a well-known technique for approximate processing of large datasets. We introduce a set of algorithms for incremental maintenance of large random samples on seco...
181
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
As data of an unprecedented scale are becoming accessible, skyline queries have been actively studied lately, to retrieve “interesting” data objects that are not dominated by a...
163
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DMIN
2006
15 years 8 months ago
2006
- As is generally accepted, the most important feature that a Knowledge Discovery in Database (KDD) system must possess is, to be able to discover patterns that are "novel&quo...