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@inproceedings{1068895,
author = {Pelánek, Radek and Jarušek, Petr},
address = {Heidelberg},
booktitle = {Proceeding ITS'12 Proceedings of the 11th international conference on Intelligent Tutoring Systems},
doi = {http://dx.doi.org/10.1007/978-3-642-30950-2_49},
editor = {Springer},
keywords = {Problem solving; intelligent tutoring systems; item response theory.},
howpublished = {tištěná verze "print"},
language = {eng},
location = {Heidelberg},
isbn = {978-3-642-30949-6},
pages = {379-388},
publisher = {Springer Berlin / Heidelberg},
title = {Analysis of a simple model of problem solving times},
url = {http://www.fi.muni.cz/~xpelanek/publications/its12.pdf},
year = {2012}
}
TY - JOUR
ID - 1068895
AU - Pelánek, Radek - Jarušek, Petr
PY - 2012
TI - Analysis of a simple model of problem solving times
PB - Springer Berlin / Heidelberg
CY - Heidelberg
SN - 9783642309496
KW - Problem solving
KW - intelligent tutoring systems
KW - item response theory.
UR - http://www.fi.muni.cz/~xpelanek/publications/its12.pdf
N2 - Our aim is to improve problem selection and recommendation in intelligent tutoring systems by modeling students problem solving times. We describe a simple model which assumes a linear relationship between latent problem solving ability and a logarithm of time to solve a problem. We show that this model is related to models from two different areas: the item response theory and collaborative filtering. Each of these areas provides inspiration for parameter estimation procedure and for possible extensions. The model is already applied in a widely used "Problem solving tutor"; using the data collected by this system we evaluate the model and analyse its parameter values.
ER -
PELÁNEK, Radek and Petr JARUŠEK. Analysis of a simple model of problem solving times. In Springer. \textit{Proceeding ITS'12 Proceedings of the 11th international conference on Intelligent Tutoring Systems}. Heidelberg: Springer Berlin / Heidelberg, 2012, p.~379-388. ISBN~978-3-642-30949-6. Available from: https://dx.doi.org/10.1007/978-3-642-30950-2\_{}49.
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