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159
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COMPGEOM
2001
ACM
15 years 10 months ago
2001
ACM
We propose a new randomized algorithm for maintaining a set of clusters among moving nodes in the plane. Given a specified cluster radius, our algorithm selects and maintains a va...
179
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ITS
2000
Springer
15 years 10 months ago
2000
Springer
Abstract. It is common to think of a "learner model" as a global description of a student's understanding of domain content. We propose a notion of learner model whe...
195
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ECTEL
2007
Springer
15 years 8 months ago
2007
Springer
Abstract. E-Learning grows on the fertile soil of the Internet technologies; it fails, however, to reach their full potential. With new, emerging technologies of the second generat...
169
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CSCW
2008
ACM
15 years 8 months ago
2008
ACM
This article presents a rational model developed under the distributed cognition framework that explains how social tags influence knowledge acquisition and adaptation in explorat...
145
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CSCW
2008
ACM
15 years 8 months ago
2008
ACM
Google Maps and its spin-offs are highly successful, but they have a major limitation: users see only pictures of geographic data. These data are inaccessible except by limited ve...