Sciweavers

96 search results - page 12 / 20
» Complexity of the Stable Model Semantics for Queries on Inco...
Sort
View
148
Voted
MMS
2008
15 years 3 months ago
Semantic interactive image retrieval combining visual and conceptual content description
We address the challenge of semantic gap reduction for image retrieval through an improved SVM-based active relevance feedback framework, together with a hybrid visual and concept...
Marin Ferecatu, Nozha Boujemaa, Michel Crucianu
194
Voted
VLDB
2007
ACM
95views Database» more  VLDB 2007»
16 years 3 months ago
Matching Twigs in Probabilistic XML
Evaluation of twig queries over probabilistic XML is investigated. Projection is allowed and, in particular, a query may be Boolean. It is shown that for a well-known model of pro...
Benny Kimelfeld, Yehoshua Sagiv
126
Voted
CIDR
2007
144views Algorithms» more  CIDR 2007»
15 years 5 months ago
Cache-Oblivious Query Processing
We propose a radical approach to relational query processing that aims at automatically and consistently achieving a good performance on any memory hierarchy. We believe this auto...
Bingsheng He, Qiong Luo
208
Voted
ICDE
2001
IEEE
121views Database» more  ICDE 2001»
16 years 4 months ago
Model-Based Mediation with Domain Maps
We propose an extension to current view-based mediator systems called model-based mediation, in which views are defined and executed at the level of conceptual models (CMs) rather...
Amarnath Gupta, Bertram Ludäscher, Maryann E....
CBMS
2006
IEEE
15 years 9 months ago
An Ontology-Driven Mediator for Querying Time-Oriented Biomedical Data
— Most biomedical research databases contain considerable amounts of time-oriented data. However, temporal knowledge about the contextual meaning of such data is not usually repr...
Martin J. O'Connor, Ravi Shankar, Amar K. Das