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Evaluation of topic-based adaptation and student modeling in QuizGuide

Sosnovsky, S and Brusilovsky, P (2015) Evaluation of topic-based adaptation and student modeling in QuizGuide. User Modeling and User-Adapted Interaction, 25 (4). 371 - 424. ISSN 0924-1868

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This paper presents an in-depth analysis of a nonconventional topic-based personalization approach for adaptive educational systems (AES) that we have explored for a number of years in the context of university programming courses. With this approach both student modeling and adaptation are based on coarse-grained knowledge units that we called topics. Our motivation for the topic-based personalization was to enhance AES transparency for both teachers and students by utilizing typical topic-based course structures as the foundation for designing all aspects of an AES from the domain model to the end-user interface. We illustrate the details of the topic-based personalization technology, with the help of the Web-based educational service QuizGuide—the first system to implement it. QuizGuide applies the topic-based personalization to guide students to the right learning material in the context of an undergraduate C programming course. While having a number of architectural and practical advantages, the suggested coarse-grained personalization approach deviates from the common practices toward knowledge modeling in AES. Therefore, we believe that several aspects of QuizGuide required a detailed evaluation—from modeling accuracy to the effectiveness of adaptation. The paper discusses how this new student modeling approach can be evaluated, and presents our attempts to evaluate it from multiple different prospects. The evaluation of QuizGuide across several consecutive semesters demonstrates that, although topics do not always support precise user modeling, they can provide a basis for successful personalization in AESs.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Sosnovsky, S
Brusilovsky, Ppeterb@pitt.eduPETERB0000-0002-1902-1464
Date: 26 October 2015
Date Type: Publication
Journal or Publication Title: User Modeling and User-Adapted Interaction
Volume: 25
Number: 4
Page Range: 371 - 424
DOI or Unique Handle: 10.1007/s11257-015-9164-4
Schools and Programs: School of Information Sciences > Information Science
Refereed: Yes
ISSN: 0924-1868
Date Deposited: 27 Jul 2016 16:00
Last Modified: 30 Mar 2021 15:55


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