2867 search results - page 274 / 574 » Effectiveness of Index Expressions |
155
Voted
GLOBECOM
2009
IEEE
15 years 9 months ago
2009
IEEE
Dynamic Spectrum Access can enable secondary network users to access unused spectrum, or whitespace, which is found between the transmissions of primary users in a wireless networ...
198
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DEXA
2008
Springer
2008
Springer
Evolutionary Clustering in Description Logics: Controlling Concept Formation and Drift in Ontologies
15 years 8 months ago
Abstract. We present a method based on clustering techniques to detect concept drift or novelty in a knowledge base expressed in Description Logics. The method exploits an effectiv...
163
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ESWS
2008
Springer
15 years 8 months ago
2008
Springer
We believe that the possibility to use SPARQL as a front end to heterogeneous data without significant cost in performance or expressive power is key to RDF taking its rightful pla...
172
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LREC
2010
15 years 8 months ago
2010
We present the GIVE-2 Corpus, a new corpus of human instruction giving. The corpus was collected by asking one person in each pair of subjects to guide the other person towards co...
210
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PLANX
2007
15 years 8 months ago
2007
We present an algorithm to solve XPath decision problems under regular tree type constraints and show its use to statically typecheck XPath queries. To this end, we prove the deci...