Hybrid Matrix Factorization Update for Progress Modeling in Intelligent Tutoring Systems.
Carlotta SchattenLars Schmidt-ThiemePublished in: CSEDU (Selected Papers) (2016)
Keyphrases
- intelligent tutoring systems
- matrix factorization
- student modeling
- collaborative filtering
- student model
- authoring tool
- recommender systems
- low rank
- missing data
- constraint based modeling
- nonnegative matrix factorization
- factorization methods
- tutoring system
- intelligent learning environments
- data sparsity
- intelligent tutoring
- tensor factorization
- factor analysis
- negative matrix factorization
- concept maps
- model tracing
- stochastic gradient descent
- cognitive model
- cognitive tutor
- web based learning environments
- web based learning systems
- learning objects
- least squares