TY - CHAP

T1 - Adaptive Speed Tests

AU - Bengs, Daniel

AU - Brefeld, Ulf

PY - 2014

Y1 - 2014

N2 - The assessment of a person's traits such as ability is a fundamental problem in human sciences. We focus on assessments of traits that can be measured by determining the shortest time limit allowing a testee to solve simple repetitive tasks, so-called speed tests. Existing approaches for adjusting the time limit are either intrinsically nonadaptive or lack theoretical foundation. By contrast, we propose a mathematically sound framework in which latent competency skills are represented by belief distributions on compact intervals. The algorithm iteratively computes a new difficulty setting, such that the amount of belief that can be updated after feedback has been received is maximized. We provide theoretical analyses and show empirically that our method performs equally well or better than state of the art baselines in a near-realistic scenario. © LWA 2013 - Lernen, Wissen and Adaptivitat, Workshop Proceedings. All rights reserved.

AB - The assessment of a person's traits such as ability is a fundamental problem in human sciences. We focus on assessments of traits that can be measured by determining the shortest time limit allowing a testee to solve simple repetitive tasks, so-called speed tests. Existing approaches for adjusting the time limit are either intrinsically nonadaptive or lack theoretical foundation. By contrast, we propose a mathematically sound framework in which latent competency skills are represented by belief distributions on compact intervals. The algorithm iteratively computes a new difficulty setting, such that the amount of belief that can be updated after feedback has been received is maximized. We provide theoretical analyses and show empirically that our method performs equally well or better than state of the art baselines in a near-realistic scenario. © LWA 2013 - Lernen, Wissen and Adaptivitat, Workshop Proceedings. All rights reserved.

KW - Informatics

KW - Adaptives Testen

KW - Empirische Untersuchung

KW - Fähigkeit

KW - Kompetenz

KW - Lernen

KW - Business informatics

M3 - Contributions to collected editions/anthologies

SP - 86

EP - 90

BT - Proceedings of the German Workshop on Knowledge Discovery and Machine Learning

A2 - Henrich, Andreas

A2 - Sperker, Hans-Christian

PB - Lehrstuhl für Medieninformatik - Universität Bamberg

CY - Bamberg

ER -