209 search results - page 2 / 42 » Using Ontologies for Database Query Reformulation |
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...
COMAD
2009
13 years 6 months ago
2009
An ontology is an explicit specification of shared conceptualization. The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies, a...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
Users frequently modify a previous search query in hope of retrieving better results. These modifications are called query reformulations or query refinements. Existing research h...
ICDE
2008
IEEE
14 years 6 months ago
2008
IEEE
Authority flow is an effective ranking mechanism for answering queries on a broad class of data. Systems have been developed to apply this principle on the Web (PageRank and topic ...
DBISP2P
2006
Springer
13 years 8 months ago
2006
Springer
Abstract. The both-as-view (BAV) approach to data integration has the advantage of specifying mappings between schemas in a bidirectional manner, so that once a BAV mapping has bee...