298 search results - page 25 / 60 » Query Rewriting in DL-Lite_^(HN)_horn |
164
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ICDT
2010
ACM
16 years 3 months ago
2010
ACM
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
148
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
191
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ADC
2008
Springer
15 years 8 months ago
2008
Springer
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
284
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ICDT
2011
ACM
14 years 9 months ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...
167
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AWIC
2005
Springer
15 years 11 months ago
2005
Springer
In data integration systems there is a problem of answering queries through a target schema, given a set of mappings between source schemas and the target schema, and given that th...