396 search results - page 28 / 80 » Semantic Optimization of Preference Queries |
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
A continuous top-k query retrieves the k most preferred objects in a data stream according to a given preference function. These queries are important for a broad spectrum of appl...
CSSW
2007
13 years 9 months ago
2007
Abstract: Semantic wikis have been introduced for collaborative authoring of ontologies as well as for annotating wiki content with semantic meta data. In this paper, we introduce ...
WIDM
2005
ACM
14 years 1 months ago
2005
ACM
This paper describes a framework for ontology-based flexible discovery of Semantic Web services. The proposed approach relies on user-supplied, context-specific mappings from an...
EDBTW
2006
Springer
13 years 11 months ago
2006
Springer
Regular path queries are the basic navigational component of virtually all the mechanisms for querying semistructured data commonly found in information integration applications, W...
SCCC
2005
IEEE
14 years 1 months ago
2005
IEEE
Databases may not satisfy integrity constraints (ICs) for several reasons. Nevertheless, in most of the cases an important part of the data is still consistent wrt certain desired...