Sciweavers

4382 search results - page 51 / 877
» Query by Semantic Example
Sort
View
SIGMOD
2004
ACM
116views Database» more  SIGMOD 2004»
14 years 7 months ago
Optimization of Query Streams Using Semantic Prefetching
Ivan T. Bowman, Kenneth Salem
DEXAW
2008
IEEE
145views Database» more  DEXAW 2008»
13 years 9 months ago
ECQ: A Simple Query Language for the Semantic Web
With the increasing development of real applications using Semantic Web Technologies, it is necessary to provide scalable and efficient ontology querying and reasoning systems. In ...
María del Mar Roldán García, ...
ER
2005
Springer
136views Database» more  ER 2005»
14 years 1 months ago
A Semantic Approach to Query Rewriting for Integrated XML Data
Query rewriting is a fundamental task in query optimization and data integration. With the advent of the web, there has been renewed interest in data integration, where data is dis...
Xia Yang, Mong-Li Lee, Tok Wang Ling, Gillian Dobb...
PODS
2009
ACM
134views Database» more  PODS 2009»
14 years 8 months ago
Equivalence of nested queries with mixed semantics
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
David DeHaan
SOFSEM
2010
Springer
14 years 4 months ago
Flavors of KWQL, a Keyword Query Language for a Semantic Wiki
Abstract. This article introduces KWQL, spoken “quickel”, a rulebased query language for a semantic wiki based on the label-keyword query paradigm. KWQL allows for rich combine...
François Bry, Klara A. Weiand