Using Problem Solving Times and Expert Opinion to Detect Skills
Juraj Nižnan, Radek Pelánek, Jiří Řihák · 2014
Construction of a mapping between educational content and skills is an important part of development of adaptive ed-ucational systems. This task is difficult, requires a domain expert, and any mistakes in the mapping may hinder the po-tential of an educational system. In this work we study tech-niques for improving a problem-skill mapping constructed by a domain expert using student data, particularly prob-lem solving times. We describe and compare different tech-niques for the task – a multidimensional model of problem solving times and supervised classification techniques. In the evaluation we focus on surveying situations where the combination of expert opinion with student data is most useful. 1.