5154 search results - page 670 / 1031 » Modelling online education |
171
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CORR
2008
Springer
15 years 7 months ago
2008
Springer
The concept of universal designated verifier signatures was introduced by Steinfeld, Bull, Wang and Pieprzyk at Asiacrypt 2003. These signatures can be used as standard publicly ve...
180
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CORR
2010
Springer
15 years 7 months ago
2010
Springer
Given a point set S and an unknown metric d on S, we study the problem of efficiently partitioning S into k clusters while querying few distances between the points. In our model ...
157
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CORR
2010
Springer
15 years 7 months ago
2010
Springer
Sub-image search with high accuracy in natural images still remains a challenging problem. This paper proposes a new feature vector called profile for a keypoint in a bag of visual...
185
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CORR
2008
Springer
15 years 7 months ago
2008
Springer
The goal of combining beamforming and space-time coding is to obtain full-diversity order and to provide additional received power (array gain) compared to conventional space-time...
158
click to vote
CORR
2008
Springer
15 years 7 months ago
2008
Springer
In wireless networks, the knowledge of nodal distances is essential for performance analysis and protocol design. When determining distance distributions in random networks, the u...