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» The Complexity of Query Reliability
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VLDB
2001
ACM
144views Database» more  VLDB 2001»
14 years 9 months ago
Approximate query processing using wavelets
Approximate query processing has emerged as a costeffective approach for dealing with the huge data volumes and stringent response-time requirements of today's decision-suppo...
Kaushik Chakrabarti, Minos N. Garofalakis, Rajeev ...
SIGMOD
2004
ACM
105views Database» more  SIGMOD 2004»
14 years 9 months ago
Query Processing for SQL Updates
A rich set of concepts and techniques has been developed in the context of query processing for the efficient and robust execution of queries. So far, this work has mostly focused...
César A. Galindo-Legaria, Stefano Stefani, ...
BIBM
2008
IEEE
144views Bioinformatics» more  BIBM 2008»
14 years 3 months ago
PhyQL: A Web-Based Phylogenetic Visual Query Engine
Biologists are often interested to query published phylogenetic data for research purposes. PhyQL, a web-based visual phylogenetic query engine, can be quite useful on this regard...
Shahriyar Hossain, Munirul Islam, Jesmin, Hasan M....
PODS
2010
ACM
249views Database» more  PODS 2010»
14 years 2 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
GEOS
2009
Springer
14 years 1 months ago
SPARQL Query Re-writing Using Partonomy Based Transformation Rules
Abstract. Often the information present in a spatial knowledge base is represented at a different level of granularity and abstraction than the query constraints. For querying onto...
Prateek Jain, Peter Z. Yeh, Kunal Verma, Cory A. H...