6650 search results - page 326 / 1330 » Mutating database queries |
221
click to vote
ODBIS
2007
Springer
16 years 22 days ago
2007
Springer
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet...
176
click to vote
DBISP2P
2005
Springer
16 years 4 days ago
2005
Springer
In this paper, we present the use of semantic caching in the environment of schema-based super-peer networks. Different from traditional caching, semantic caching allows the answe...
189
click to vote
CINQ
2004
Springer
16 years 2 hour ago
2004
Springer
We consider the problem of how one can estimate the support of Boolean queries given a collection of frequent itemsets. We describe an algorithm that truncates the inclusion-exclus...
224
Voted
ICDT
2001
ACM
15 years 11 months ago
2001
ACM
This document proposes an algebra for XML Query. The algebra has been submitted to the W3C XML Query Working Group. A novel feature of the algebra is the use of regular-expression ...
157
click to vote
VLDB
1998
ACM
15 years 10 months ago
1998
ACM
Small Materialized Aggregates (SMAs for short) are considered a highly flexible and versatile alternative for materialized data cubes. The basic idea is to compute many aggregate ...