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» On Querying Ontologies and Databases
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SEMCO
2007
IEEE
16 years 9 days ago
Multimedia Reasoning with Natural Language Support
In this paper we present an approach that combines multimedia reasoning and natural language processing for the semantic integration of automatic and manual image annotations base...
Stamatia Dasiopoulou, Johannes Heinecke, Carsten S...
DASFAA
2004
IEEE
95views Database» more  DASFAA 2004»
15 years 9 months ago
On Incorporating Iceberg Queries in Query Processors
Iceberg queries are a special case of SQL queries involving GROUP BY and HAVING clauses, wherein the answer set is small relative to the database size. We present here a performanc...
Krishna P. Leela, Pankaj M. Tolani, Jayant R. Hari...
BDA
1993
15 years 7 months ago
Querying and Updating the File
We show how structured data stored in files can benefit from standard database technology and in particular be queried and updated using database languages. We introduce the notio...
Serge Abiteboul, Sophie Cluet, Tova Milo
ICDE
2008
IEEE
144views Database» more  ICDE 2008»
16 years 7 months ago
QShuffler: Getting the Query Mix Right
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing perf...
Mumtaz Ahmad, Ashraf Aboulnaga, Shivnath Babu, Kam...
ICDE
2002
IEEE
146views Database» more  ICDE 2002»
16 years 7 months ago
Query Estimation by Adaptive Sampling
The ability to provide accurate and efficient result estimations of user queries is very important for the query optimizer in database systems. In this paper, we show that the tra...
Yi-Leh Wu, Divyakant Agrawal, Amr El Abbadi