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» A Genetic Algorithm for Database Query Optimization
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CIKM
2008
Springer
13 years 9 months ago
Modeling and exploiting query interactions in database systems
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 per...
Mumtaz Ahmad, Ashraf Aboulnaga, Shivnath Babu, Kam...
SYRCODIS
2008
184views Database» more  SYRCODIS 2008»
13 years 9 months ago
Towards Cost-based Query Optimization in Native XML Database Management Systems
In the last few years, XML became a de-facto standard for the exchange of structured and semi-structured data. The database research community took this development into account b...
Andreas M. Weiner, Christian Mathis, Theo Här...
BIOCOMP
2009
13 years 8 months ago
Improving Remote Homology Detection Using Sequence Properties and Position Specific Scoring Matrices
Current biological sequence comparison tools frequently fail to recognize matches between homologs when sequence similarity is below the twilight zone of less than 25% sequence id...
Gina Cooper, Michael L. Raymer
GECCO
2007
Springer
283views Optimization» more  GECCO 2007»
14 years 1 months ago
Evolving Lucene search queries for text classification
We describe a method for generating accurate, compact, human understandable text classifiers. Text datasets are indexed using Apache Lucene and Genetic Programs are used to constr...
Laurence Hirsch, Robin Hirsch, Masoud Saeedi
SIGMOD
2009
ACM
135views Database» more  SIGMOD 2009»
14 years 7 months ago
Interactive plan hints for query optimization
Commercial database systems expose query hints to fix poor plans produced by the query optimizer. However, current query hints are not flexible enough to deal with a variety of no...
Nicolas Bruno, Surajit Chaudhuri, Ravishankar Rama...