619 search results - page 13 / 124 » Query Planning in Infomaster |
131
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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...
106
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JPDC
2010
15 years 8 days ago
2010
We observe two deficiencies of current query processing and scheduling techniques for sensor networks: (1) A query execution plan does not adapt to the hardware characteristics o...
122
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ICDE
2011
IEEE
14 years 5 months ago
2011
IEEE
— Optimal location (OL) queries are a type of spatial queries particularly useful for the strategic planning of resources. Given a set of existing facilities and a set of clients...
123
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SIGMOD
2004
ACM
16 years 2 months ago
2004
ACM
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
158
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SIGMOD
2009
ACM
16 years 2 months ago
2009
ACM
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...