2145 search results - page 139 / 429 » Answering Queries Using Views |
143
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STACS
2005
Springer
15 years 12 months ago
2005
Springer
Abstract. We consider data structures and algorithms for preprocessing a labelled list of length n so that, for any given indices i and j we can answer queries of the form: What is...
180
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COMPGEOM
2007
ACM
15 years 10 months ago
2007
ACM
We present a data structure for answering approximate shortest path queries in a planar subdivision from a fixed source. Let 1 be a real number. Distances in each face of this sub...
179
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
147
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CIKM
2001
Springer
15 years 11 months ago
2001
Springer
Using materialized view to accelerate OLAP queries is one of the most common methods used in ROLAP systems. However, high storage and computation cost make this method very diffic...
154
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SEMWEB
2010
Springer
15 years 4 months ago
2010
Springer
Abstract. We extend our recent work on evaluating incomplete reasoners by introducing strict testing bases. We show how they can be used in practice to identify ontologies and quer...