3891 search results - page 266 / 779 » Query Models |
205
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EDBT
2012
ACM
13 years 9 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
201
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EDBT
2009
ACM
16 years 1 months ago
2009
ACM
In recent years, large amount of data modeled by graphs, namely graph data, have been collected in various domains. Efficiently processing queries on graph databases has attracted...
315
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
177
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PVLDB
2008
15 years 6 months ago
2008
The class of k Nearest Neighbor (kNN) queries is frequently used in geospatial applications. Many studies focus on processing kNN in Euclidean and road network spaces. Meanwhile, ...
229
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EDBT
2012
ACM
13 years 9 months ago
2012
ACM
Many stream processing applications require access to a multitude of streaming as well as stored data sources. Yet there is no clear semantics for correct continuous query executi...