2853 search results - page 110 / 571 » On the Efficiency of Provenance Queries |
200
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EDBT
2009
ACM
15 years 4 months ago
2009
ACM
In this work, we focus on managing scientific environmental data, which are measurement readings collected from wireless sensors. In environmental science applications, raw sensor...
170
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PVLDB
2010
15 years 1 months ago
2010
Database evolution is the process of updating the schema of a database or data warehouse (schema evolution) and evolving the data to the updated schema (data evolution). Database ...
194
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
149
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GIS
1999
ACM
15 years 10 months ago
1999
ACM
: The paper is concerned with the effective and efficient processing of spatiotemporal selection queries under varying degrees of approximation. Such queries may employ operators l...
187
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CIKM
2009
Springer
15 years 10 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...