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Stephan Weibelzahl
Stephan Weibelzahl
PFH Private University of Applied Sciences Göttingen
Verified email at pfh.de - Homepage
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pwr: Basic functions for power analysis
S Champely, C Ekstrom, P Dalgaard, J Gill, S Weibelzahl, A Anandkumar, ...
6912017
pwr: Basic Functions for Power Analysis. R package version 1.2-2
S Champely, C Ekstrom, P Dalgaard, J Gill, S Weibelzahl, A Anandkumar
Computer software]. Retreived from https://CRAN. R-project. org/package= pwr, 2018
4312018
Developing adaptive internet based courses with the authoring system NetCoach
G Weber, HC Kuhl, S Weibelzahl
Hypermedia: Openness, Structural Awareness, and Adaptivity, 222-223, 2002
2672002
Evaluation of adaptive systems
S Weibelzahl, A Paramythis, J Masthoff
Proceedings of the 28th ACM Conference on User Modeling, Adaptation and …, 2020
1842020
Layered evaluation of interactive adaptive systems: framework and formative methods
A Paramythis, S Weibelzahl, J Masthoff
User Modeling and User-Adapted Interaction 20 (5), 383-453, 2010
1802010
Package ‘pwr’
S Champely, C Ekstrom, P Dalgaard, J Gill, S Weibelzahl, A Anandkumar, ...
R package version 1 (2), 2018
1622018
Log file analysis for disengagement detection in e-Learning environments
M Cocea, S Weibelzahl
User Modeling and User-Adapted Interaction 19 (4), 341-385, 2009
1212009
Can log files analysis estimate learners’ level of motivation?
M Cocea, S Weibelzahl
1142006
Usability Engineering for the Adaptive Web
C Gena, S Weibelzahl
The Adaptive Web: Methods and Strategies of Web Personalization 4321, 720-762, 2007
1022007
Disengagement detection in on-line learning: validation studies and perspectives
M Cocea, S Weibelzahl
Learning Technologies, IEEE Transactions on 4 (2), 114-124, 2011
972011
Advantages, opportunities and limits of empirical evaluations: Evaluating adaptive systems
S Weibelzahl, G Weber
KI 16 (3), 17-20, 2002
852002
Problems and pitfalls in the evaluation of adaptive systems
S Weibelzahl
Adaptable and adaptive hypermedia systems, 285-299, 2005
842005
Towards a good mix in blended learning for small and medium-sized enterprises–Outline of a Delphi Study
S Moebs, S Weibelzahl
EC-TEL 2006, Innovative Approaches for Learning and Knowledge Sharing, 10-17, 2006
822006
Cross-system validation of engagement prediction from log files
M Cocea, S Weibelzahl
European conference on technology enhanced learning, 14-25, 2007
752007
A decomposition model for the layered evaluation of interactive adaptive systems
A Paramythis, S Weibelzahl
International Conference on User Modeling, 438-442, 2005
672005
Eliciting motivation knowledge from log files towards motivation diagnosis for Adaptive Systems
M Cocea, S Weibelzahl
International conference on user modeling, 197-206, 2007
612007
User-centered EEG-based multimedia quality assessment
AN Moldovan, I Ghergulescu, S Weibelzahl, CH Muntean
2013 IEEE international symposium on broadband multimedia systems and …, 2013
592013
Basic functions for power analysis
S Champely, C Ekstrom, P Dalgaard, J Gill, S Weibelzahl, A Anandkumar, ...
R Package Version https://cran. r-project. org/web/packages/pwr/pwr. pdf, 2018
562018
Motivation–included or excluded from e-learning
M Cocea, S Weibelzahl
International Conference on Cognition and Exploratory Learning in Digital …, 2006
542006
Using weblogs for knowledge sharing and learning in information spaces
E Ras, G Avram, P Waterson, S Weibelzahl
Graz University of Technology, Institut für Informationssysteme und Computer …, 2005
532005
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