An Adaptive Method for Selecting Question Pools Using C4.5

Abstract

A number of adaptive mechanisms for asking questions have been proposed. This paper presents a novel adaptive method for selecting questions from various pools of questions. The method uses a state-diagram to represent various question pools where transitions between the states are dynamically modified to generate the optimal pool of questions for the next question. C4.5 is used to close the loop on adaptive selection of questions. A case study showing how the method was implemented for an online environmental game is presented and evaluated.