6484 search results - page 1243 / 1297 » Physical Database Design |
164
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SPAA
2006
ACM
15 years 10 months ago
2006
ACM
LOFAR is the first of a new generation of radio telescopes, that combines the signals from many thousands of simple, fixed antennas, rather than from expensive dishes. Its revol...
145
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SIGGRAPH
1990
ACM
15 years 8 months ago
1990
ACM
not abstract asymmetry: different sides looks different clumps different from "data objects" need grid structure, alignment [Design Guidelines for Landmarks to Support Na...
222
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GIS
2007
ACM
16 years 5 months ago
2007
ACM
We consider the problem of extracting a river network and a watershed hierarchy from a terrain given as a set of irregularly spaced points. We describe TerraStream, a "pipeli...
134
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WWW
2009
ACM
16 years 4 months ago
2009
ACM
Understanding user intent is key to designing an effective ranking system in a search engine. In the absence of any explicit knowledge of user intent, search engines want to diver...
157
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WWW
2008
ACM
16 years 4 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...