356 search results - page 15 / 72 » Knowledge Representation using Schema Tuple Queries |
DLOG
2000
14 years 11 months ago
2000
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for ...
EDBTW
2004
Springer
15 years 3 months ago
2004
Springer
Many users and applications require the integration of semi-structured data from autonomous, heterogeneous Web sources. Over the last years mediator systems have emerged that use d...
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
JIKM
2011
14 years 15 days ago
2011
Abstract. This paper presents a novel approach for extracting personal data and automatically generating Personal Data Reports (PDRs) from relational databases. Such PDRs can be us...
JAIR
2002
14 years 9 months ago
2002
We propose a structured approach to the problem of retrieval of images by content and present a description logic that has been devised for the semantic indexing and retrieval of ...