Paper Info
Title
Evaluation of ERST – an external representation selection tutor
Abstract
This paper describes the evaluation of ERST, an adaptive system which is designed to improve its users' external representation (ER) selection accuracy on a range of database query tasks. The design of the system was informed by the results of experimental studies. Those studies examined the interactions between the participants' background knowledge-of-external representations, their preferences for selecting particular information display forms, and their performance across a range of tasks involving database queries. The paper describes how ERST's adaptation is based on predicting users' ER-to-task matching skills and performance at reasoning with ERs, via a Bayesian user model. The model drives ERST's adaptive interventions in two ways – by 1. hinting to the user that particular representations be used, and/or 2. by removing from the user the opportunity to select display forms which have been associated with prior poor performance for that user. The results show that ERST does improve an individual's ER reasoning performance. The system is able to successfully predict users' ER-to-task matching skills and their ER reasoning performance via its Bayesian user model.
Year
DOI
Venue
2006
10.1007/11783183_21
Diagrams
Keywords
Field
DocType
particular representation,bayesian user model,external representation selection tutor,display form,particular information display form,database query,database query task,adaptive intervention,adaptive system,er reasoning performance,prior poor performance,user model
TUTOR,Knowledge representation and reasoning,Adaptive system,Computer science,Range query (data structures),Human–computer interaction,Bayesian network,User modeling,Artificial intelligence,User interface,Bayesian probability
Conference
Volume
ISSN
ISBN
4045
0302-9743
3-540-35623-1
Citations 
PageRank 
References 
14
0.72
8
Authors
1
Name
Order
Citations
PageRank
Beate Grawemeyer118417.60