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GECCO
2010
Springer
156views Optimization» more  GECCO 2010»
15 years 10 months ago
Elementary landscape decomposition of the quadratic assignment problem
The Quadratic Assignment Problem (QAP) is a well-known NP-hard combinatorial optimization problem that is at the core of many real-world optimization problems. We prove that QAP c...
J. Francisco Chicano, Gabriel Luque, Enrique Alba
GECCO
2010
Springer
152views Optimization» more  GECCO 2010»
15 years 10 months ago
Active covariance matrix adaptation for the (1+1)-CMA-ES
We propose a novel variant of the (1 + 1)-CMA-ES that updates the distribution of mutation vectors based on both successful and unsuccessful trial steps. The computational costs o...
Dirk V. Arnold, Nikolaus Hansen
AIED
2007
Springer
15 years 10 months ago
Novel Tools for Assessing Student Discussions: Modeling threads and participant roles using speech act and course topic analysis
This paper describes new techniques for assessing pedagogical discourse via threaded discussions that are based on an analysis of speech acts and course topics. The context is an u...
Jihie Kim, Erin Shaw, Grace Chern, Roshan Herbert
AIED
2007
Springer
15 years 10 months ago
'Tis Better to Construct than to Receive? The Effects of Diagram Tools on Causal Reasoning
Previous research on the use of diagrams for argumentation instruction has highlighted, but not conclusively demonstrated, their potential benefits. We examine the relative benefit...
Matthew W. Easterday, Vincent Aleven, Richard Sche...
AIED
2007
Springer
15 years 10 months ago
Domain-Specific and Domain-Independent Interactive Behaviors in Andes
In this study, students studied two different domains in the same Intelligent Tutoring System, Andes. Analysis of 435 log files from 22 subjects indicated that there are two types ...
Min Chi, Kurt VanLehn