2016
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Improving Plagiarism Detection in Coding Assignments by Dynamic Removal of Common Ground
Henning Pohl, Christian Domin and Markus Krause
CHI '16 Extended Abstracts on Human Factors in Computing Systems on - CHI EA '16Plagiarism in online learning environments has a detrimental effect on the trust of online courses and their viability. Automatic plagiarism detection systems do exist yet the specific situation in online courses restricts their use. To allow for easy automated grading, online assignments usually are less open and instead require students to fill in small gaps. Therefore solutions tend to be very similar, yet are then not necessarily plagiarized. In this paper we propose a new approach to detect code re-use that increases the prediction accuracy by dynamically removing parts in assignments which are part of almost every assignment—the so called common ground. Our approach shows significantly better F-measure and Cohen's Kappa results than other state of the art algorithms such as Moss or JPlag. The proposed method is also language agnostic to the point that training and test data sets can be taken from different programming languages.
2015
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A Playful Game Changer: Fostering Student Retention in Online Education with Social Gamification
Markus Krause, Marc Mogalle, Henning Pohl and Joseph Jay Williams
Proceedings of the second ACM conference on Learning @ scale - L@S '15Many MOOCs report high drop off rates for their students. Among the factors reportedly contributing to this picture are lack of motivation, feelings of isolation, and lack of interactivity in MOOCs. This paper investigates the potential of gamification with social game elements for increasing retention and learning success. Students in our experiment showed a significant increase of 25% in retention period (videos watched) and 23% higher average scores when the course interface was gamified. Social game elements amplify this effect significantly – students in this condition showed an increase of 50% in retention period and 40% higher average test scores. -
One-Button Recognizer: Exploiting Button Pressing Behavior for User Differentiation
Henning Pohl, Markus Krause and Michael Rohs
Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing - UbiComp '15We present a novel way to recognize users by the way they press a button. Our approach allows low-effort and fast interaction without the need for augmenting the user or controlling the environment. It eschews privacy concerns of methods such as fingerprint scanning. Button pressing behavior is sufficiently discriminative to allow distinguishing users within small groups. This approach combines recognition and action in a single step, e.g., getting and tallying a coffee can be done with one button press. We deployed our system for 5 users over a period of 4 weeks and achieved recognition rates of 95% in the last week. We also ran a larger scale but short-term evaluation to investigate effects of group size and found that our method degrades gracefully for larger groups.
2013
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A Digital Game to Support Voice Treatment for Parkinson ’ s Disease
Markus Krause, Jan Smeddinck and Ronald Meyer
CHI'013 extended abstracts on Human factors in computing systems -
Designing Systems with Homo Ludens in the Loop
Markus Krause
Handbook of Human Computation -
It is about Time : Time Aware Quality Management for Interactive Systems with Humans in the Loop
Markus Krause and Robert Porzel
CHI'13 extended abstracts on Human factors in computing systems -
Mobile Game User Research : The World as Your Lab ?
Markus Krause and Jan Smeddinck
GUR'13 Proceedings of the CHI Game User Experience Research Workshop
2012
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GCI 2012 Harnessing Collective Intelligence with Games 1st International Workshop on Systems with Homo Ludens in the Loop
Markus Krause, Roberta Cuel and Maja Vukovic
ICEC'12 Proceedings of the 11th Inernational Conference on Entertainment Computing -
Predicting Crowd-based Translation Quality with Language-independent Feature Vectors
Markus Krause, Niklas Kilian, Nina Runge and Jan Smeddinck -
Human Computation – A new Aspect of Serious Games
Markus Krause and Jan Smeddinck
Handbook of Research on Serious Games as Educational, Business and Research Tools: Development and Design -
Playful Surveys : Easing Challenges of Human Subject Research with Online Crowds Challenges of Human Subject Research with
Markus Krause, Jan Smeddinck, Aneta Takhtamysheva, Velislav Markov and Nina Runge
HComp'12 Proceedings of the AAAI Workshop on Human Computation -
Did They Really Like the Game ? -- Challenges in Evaluating Exergames with Older Adults
Markus Krause, Jan Smeddinck, Marc Herrlich, Kathrin Gerling and Rainer Malaka
GUR'12 Proceedings of the CHI Game User Experience Research Workshop -
Design and Evaluation of Parametrizable Multi-Genre Game Mechanics
Markus Krause, Daniel Apken, Hendrik Landwehr, Marc Herrlich, Dennis Paul and Rainer Malaka
ICEC'12 Proceedings of the 11th Inernational Conference on Entertainment Computing -
Exploring User Input Metaphors for Jump and Run Games on Mobile Devices
Markus Krause and Kolja Lubitz
ICEC'12 Proceedings of the 11th Inernational Conference on Entertainment Computing
2011
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Advancing Large Interactive Surfaces for Use in the Real World
Markus Krause, Jens Teichert, Marc Herrlich, Benjamin Walther-Franks, Lasse Schwarten, Sebastian Feige and Rainer Malaka -
WuppDi! – Supporting Physiotherapy of Parkinson´s Disease Patients via Motion-based Gaming
Markus Krause, Oliver Assad, Robert Hermann, Damian Lilla, Björn Mellies, Ronald Meyer, Liron Shevach, Sandra Siegel, Melanie Springer, Saranat Tiemkeo, Jens Voges, Jan Wieferich, Marc Herrlich and Rainer Malaka
Mensch & Computer -
Human Computation Games: a Survey
Markus Krause and Jan Smeddinck
EUSIPCO'11 Proceedings of the 19th European Signal Processing Conference -
Deploying an Experimental Study of the Emergence of Human Communication Systems as an Online Game.
Markus Krause and Jan Smeddinck
IK'2011 Procedings of the Interdisciplinary College -
Motion-based Serious Games for Pakinson Patients
Markus Krause, Oliver Assad, Robert Hermann, Damian Lilla, Björn Mellies, Ronald Meyer, Liron Shevach, Sandra Siegel, Melanie Springer, Saranat Tiemkeo, Jens Voges, Jan Wieferich, Marc Herrlich and Rainer Malaka
IK'2011 Procedings of the Interdisciplinary College -
Serious Questionnaires in Playful Social Network Applications
Markus Krause, Aneta Takhtamysheva and Jan Smeddinck
ICEC'11 Proceedings of the 10th Inernational Conference on Entertainment Computing -
Teaching Serious Games
Markus Krause, Marc Herrlich, Rainer Malaka and Jan Smeddinck
Mensch & Computer Workshop on „Game Development in der Hochschulinformatik“ -
Motion-Based Games for Parkinson's Disease Patients
Markus Krause, Oliver Assad, Robert Hermann, Damian Lilla, Björn Mellies, Ronald Meyer, Liron Shevach, Sandra Siegel, Melanie Springer, Saranat Tiemkeo, Jens Voges, Jan Wieferich, Marc Herrlich and Rainer Malaka
ICEC'11 Proceedings of the 10th Inernational Conference on Entertainment Computing -
WuppDi! – Motion-Based serious games for parkinson’s patients
Markus Krause, Oliver Assad, Robert Hermann, Damian Lilla, Björn Mellies, Ronald Meyer, Liron Shevach, Sandra Siegel, Melanie Springer, Saranat Tiemkeo, Jens Voges, Jan Wieferich, Marc Herrlich and Rainer Malaka
IK'2011 Procedings of the Interdisciplinary College
2010
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Human Computation in Action
Markus Krause
IK'2010 Procedings of the Interdisciplinary College -
Frontiers of a Paradigm - Exploring Human Computation with Digital Games
Markus Krause, Aneta Takhtamysheva, Marion Wittstock and Rainer Malaka
HComp'10 Proceedings of the ACM SIGKDD Workshop on Human Computation -
Advancing Large Interactive Surfaces for Use in the Real World
Markus Krause, Jens Teichert, Marc Herrlich, Benjamin Walther-Franks, Lasse Schwarten, Sebastian Feige and Rainer Malaka -
Webpardy : Harvesting QA by HC
Markus Krause, Hidir Aras, Andreas Haller and Rainer Malaka
HComp'10 Proceedings of the ACM SIGKDD Workshop on Human Computation
2009
2008
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User Detection for a Multi-touch Table via Proximity Sensors
Markus Krause, Jens Teichert, Marc Herrlich, Benjamin Walther-Franks and Lasse Schwarten
Proceedings of the IEEE Tabletops and Interactive Surfaces -
Multitouch Motion Capturing
Markus Krause, Marc Herrlich, Lasse Schwarten, Jens Teichert and Benjamin Walther-Franks
Proceedings of the IEEE Tabletops and Interactive Surfaces -
Multitouch Interface Metaphors for 3D Modeling
Markus Krause, Marc Herrlich, Lasse Schwarten, Jens Teichert and Benjamin Walther-Franks
Proceedings of the IEEE Tabletops and Interactive Surfaces