2608 search results - page 257 / 522 » Inferring Answers to Queries |
208
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SSDBM
2002
IEEE
15 years 11 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
157
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COMPGEOM
1994
ACM
15 years 10 months ago
1994
ACM
Ray (segment) shooting is the problem of determining the first intersection between a ray (directed line segment) and a collection of polygonal or polyhedral obstacles. In order t...
171
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WLP
2000
Springer
15 years 10 months ago
2000
Springer
In this paper, a dynamic approach to deductive query evaluation is presented which combines the e ects of di erent SIP strategies used for the magic set rewriting technique. Given...
181
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COLT
2008
Springer
15 years 8 months ago
2008
Springer
We study the properties of the agnostic learning framework of Haussler [Hau92] and Kearns, Schapire and Sellie [KSS94]. In particular, we address the question: is there any situat...
240
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TWC
2011
15 years 1 months ago
2011
Abstract—We target a two-tier sensor network with resourcerich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Master nodes collect data from sen...