Using Item-type Performance Covariance to Improve the Skill Model of an Existing Tutor.

Philip I. Pavlik Hao Cen Lili Wu Kenneth R. Koedinger

Published in: EDM (2008)

Keyphrases

probabilistic model
high level
mathematical model
cost function
computational model
autoregressive
input data
formal model
neural network model
experimental data
theoretical analysis
decision making
neural network
supply chain
statistical model
prior knowledge
artificial neural networks
objective function