765 search results - page 68 / 153 » Query Processing over Incomplete Autonomous Databases |
100
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CIKM
2009
Springer
15 years 2 months ago
2009
Springer
Current approaches to RDF graph indexing suffer from weak data locality, i.e., information regarding a piece of data appears in multiple locations, spanning multiple data structur...
78
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SIGMOD
2010
ACM
15 years 3 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
106
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WWW
2008
ACM
15 years 11 months ago
2008
ACM
Web search engines are facing formidable performance challenges due to data sizes and query loads. The major engines have to process tens of thousands of queries per second over t...
102
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ICDT
2012
ACM
13 years 18 days ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
174
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VLDB
2004
ACM
15 years 10 months ago
2004
ACM
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. In i...