574 search results - page 98 / 115 » A General Framework for Covering Concepts using Terminologie... |
110
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AI
2010
Springer
14 years 10 months ago
2010
Springer
We develop a formal framework for comparing different versions of ontologies, and apply it to ontologies formulated in terms of DL-Lite, a family of `lightweight' description...
109
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SPIESR
2003
14 years 11 months ago
2003
One of the major challenges facing current media management systems and related applications is the so-called ‘‘semantic gap’’ between the rich meaning that a user desires...
WIOPT
2010
IEEE
14 years 8 months ago
2010
IEEE
We consider the problem of providing opportunistic spectrum access to secondary users in wireless cellular networks. From the standpoint of spectrum license holders, achieving ben...
122
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SIAMREV
2010
14 years 4 months ago
2010
The affine rank minimization problem consists of finding a matrix of minimum rank that satisfies a given system of linear equality constraints. Such problems have appeared in the ...
WWW
2004
ACM
15 years 10 months ago
2004
ACM
In this paper we describe a practical framework for studying the navigational behavior of the users of an e-learning environment integrated in a virtual campus. The students navig...