Sciweavers

376 search results - page 40 / 76
» On the semantics and evaluation of top-k queries in probabil...
Sort
View
KRDB
1998
83views Database» more  KRDB 1998»
13 years 9 months ago
Semantic Query Optimisation and Rule Graphs
Previous researchers note the problem for semantic optimisation of database queries caused by its production of a large number of semantically equivalent alternative queries, from...
Jerome Robinson, Barry G. T. Lowden
SIGMOD
2006
ACM
159views Database» more  SIGMOD 2006»
14 years 8 months ago
Flexible and efficient XML search with complex full-text predicates
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
Sihem Amer-Yahia, Emiran Curtmola, Alin Deutsch
VLDB
1997
ACM
86views Database» more  VLDB 1997»
13 years 12 months ago
Using Probabilistic Information in Data Integration
The goal of a mediator system is to provide users a uniform interface to the multitude of information sources. To translate user queries, given in a mediated schema, to queries on...
Daniela Florescu, Daphne Koller, Alon Y. Levy
ER
2006
Springer
112views Database» more  ER 2006»
13 years 11 months ago
An Architecture for Emergent Semantics
Emergent Semantics is a new paradigm for inferring semantic meaning from implicit feedback by a sufficiently large number of users of an object retrieval system. In this paper, we ...
Sven Herschel, Ralf Heese, Jens Bleiholder
LAWEB
2005
IEEE
14 years 1 months ago
Optimized Index Structures for Querying RDF from the Web
Storing and querying Resource Description Framework (RDF) data is one of the basic tasks within any Semantic Web application. A number of storage systems provide assistance for th...
Andreas Harth, Stefan Decker