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IAT
2008
IEEE
14 years 4 months ago
Competency-Based Intelligent Curriculum Sequencing: Comparing Two Evolutionary Approaches
The process of creating e-learning contents using reusable learning objects (LOs) can be broken down in two sub-processes: LOs finding and LO sequencing. Although semiautomatic to...
Luis de Marcos, Roberto Barchino, José-Javi...
ACMICEC
2006
ACM
89views ECommerce» more  ACMICEC 2006»
14 years 3 months ago
A semantic web approach to handling soft constraints in virtual organisations
In this paper we present a proposal for representing soft constraint satisfaction problems (CSPs) within the Semantic Web architecture. The proposal is motivated by the need for a...
Alun D. Preece, Stuart Chalmers, Craig McKenzie, J...
CONSTRAINTS
2002
111views more  CONSTRAINTS 2002»
13 years 9 months ago
A Constraint-Based Interactive Train Rescheduling Tool
In this paper, we report the design and implementation of a constraint-based interactive train rescheduling tool, a project in collaboration with the International Institute for So...
C. K. Chiu, C. M. Chou, Jimmy Ho-Man Lee, Ho-fung ...
AAAI
2006
13 years 11 months ago
The Impact of Balancing on Problem Hardness in a Highly Structured Domain
Random problem distributions have played a key role in the study and design of algorithms for constraint satisfaction and Boolean satisfiability, as well as in our understanding o...
Carlos Ansótegui, Ramón Béjar...
AAAI
2000
13 years 11 months ago
Generating Satisfiable Problem Instances
A major difficulty in evaluating incomplete local search style algorithms for constraint satisfaction problems is the need for a source of hard problem instances that are guarante...
Dimitris Achlioptas, Carla P. Gomes, Henry A. Kaut...