14 search results - page 1 / 3 » Using Item-type Performance Covariance to Improve the Skill ... |
EDM
2008
13 years 6 months ago
2008
Using data from an existing pre-algebra computer-based tutor, we analyzed the covariance of item-types with the goal of describing a more effective way to assign skill labels to it...
OZCHI
2005
ACM
13 years 10 months ago
2005
ACM
Many software systems would significantly improve performance if they could interpret the nonverbal cues in their user’s interactions as humans normally do. Currently, Intellige...
AIED
2007
Springer
13 years 8 months ago
2007
Springer
COLLECT-UML is a collaborative constraint-based tutor for teaching object-oriented analysis and design using Unified Modelling Language. It is the first system in the family of con...
CEC
2007
IEEE
13 years 11 months ago
2007
IEEE
— Gaussian models are widely adopted in continuous Estimation of Distribution Algorithms (EDAs). In this paper, we analyze continuous EDAs and show that they don’t always work ...
BMCBI
2008
13 years 5 months ago
2008
Background: When predictive survival models are built from high-dimensional data, there are often additional covariates, such as clinical scores, that by all means have to be incl...