708 search results - page 37 / 142 » A Genetic Algorithm for Database Query Optimization |
110
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GECCO
2005
Springer
15 years 7 months ago
2005
Springer
The problem of multiple sequence alignment is important for bioinformatics. This problem is widely studied and a popular tool to solve this problem is Clustal X. This work introdu...
231
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ICDE
2003
IEEE
16 years 3 months ago
2003
IEEE
XKeyword provides efficient keyword proximity queries on large XML graph databases. A query is simply a list of keywords and does not require any schema or query language knowledg...
203
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SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
133
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ICDE
2012
IEEE
13 years 4 months ago
2012
IEEE
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
111
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ESA
2010
Springer
15 years 3 months ago
2010
Springer
Text search engines return a set of k documents ranked by similarity to a query. Typically, documents and queries are drawn from natural language text, which can readily be partiti...