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194
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UM
2005
Springer
16 years 4 days ago
2005
Springer
Abstract. Since problem solving in group problem-based learning is a collaborative process, modeling individuals and the group is necessary if we wish to develop an intelligent tut...
172
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ECLIPSE
2004
ACM
16 years 3 days ago
2004
ACM
Much research has been done on techniques to teach students how to program. However, it is usually difficult to quantify exactly how students work. Instructors typically only see ...
185
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SIGUCCS
2004
ACM
16 years 3 days ago
2004
ACM
Designing computing equipment for a computer laboratory is not easy. In a class in a computer laboratory, it is not unusual that all students do the same thing simultaneously. Tre...
167
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APPROX
2004
Springer
16 years 2 days ago
2004
Springer
The central observation of this paper is that if ǫn random arcs are added to any n-node strongly connected digraph with bounded degree then the resulting graph has diameter O(ln ...
179
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CCS
2004
ACM
16 years 2 days ago
2004
ACM
As network security is a growing concern, system administrators lock down their networks by closing inbound ports and only allowing outbound communication over selected protocols ...