586 search results - page 28 / 118 » Answering Multiple-Item Queries in Data Broadcast Systems |
229
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ICDE
1999
IEEE
16 years 2 months ago
1999
IEEE
Modern digital libraries require user-friendly and yet responsive access to the rapidly growing, heterogeneous, and distributed collection of information sources. However, the inc...
215
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ICDE
2008
IEEE
16 years 2 months ago
2008
IEEE
This paper introduces U-relations, a succinct and purely relational representation system for uncertain databases. U-relations support attribute-level uncertainty using vertical pa...
SIGMOD
1999
ACM
15 years 5 months ago
1999
ACM
Query processing in data integration occurs over network-bound, autonomous data sources. This requires extensions to traditional optimization and execution techniques for three re...
137
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DLOG
2011
14 years 4 months ago
2011
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
SIGMOD
1995
ACM
15 years 4 months ago
1995
ACM
When querying a temporal database, a user often makes certain semantic assumptions on stored temporal data. This paper formalizes and studies two types of semantic assumptions: po...