6974 search results - page 45 / 1395 » Querying Semi-Structured Data |
ENTCS
2006
13 years 7 months ago
2006
Data integration systems provide a uniform query interface (UQI) to multiple, autonomous data sources [4]. This paper presents the universal data model (UDM) that captures the sem...
VLDB
1992
ACM
13 years 12 months ago
1992
ACM
Research in temporal databases has mainly focused on defining temporal data models by extending existing models, and developing access structures for temporal data. Little has bee...
DEXAW
2007
IEEE
14 years 2 months ago
2007
IEEE
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...
HPCC
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We consider query execution strategies for object-oriented distributed databases. There are several scenarios of query decomposition, assuming that the corresponding quer...
ECIR
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. We investigate the potential of coherence-based scores to predict query difficulty. The coherence of a document set associated with each query word is used to capture the...