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References Navigation arrow Authors Navigation arrow Evangelos Karapanos
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Evangelos Karapanos

PhD student

Picture of Evangelos Karapanos. Copyright unknown.
Personal Homepage:
idemployee.id.tue.nl/e.karapanos/
Current place of employment:
Eindhoven University of Technology

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Publications by Evangelos Karapanos (bibliography)

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» 2009 «

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Karapanos, Evangelos, Martens, Jean-Bernard and Hassenzahl, Marc (2009): Accounting for diversity in subjective judgments. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 639-648. Available online

“In this paper we argue against averaging as a common practice in the analysis of subjective attribute judgments, both across and within subjects. Previous work has raised awareness of the diversity between individuals' perceptions. In this paper it will furthermore become apparent that such diversity can also exist within a single individual, in the sense that different attribute judgments from a subject may reveal different, complementary, views. A Multi-Dimensional Scaling approach that accounts for the diverse views on a set of stimuli is proposed and its added value is illustrated using published data. We will illustrate that the averaging analysis provides insight to only 1/6th of the total number of attributes in the example dataset. The proposed approach accounts for more than double the information obtained from the average model, and provides richer and semantically diverse views on the set of stimuli.”

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Karapanos, Evangelos, Zimmerman, John, Forlizzi, Jodi and Martens, Jean-Bernard (2009): User experience over time: an initial framework. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 729-738. Available online

“A recent trend in Human-Computer Interaction (HCI) research addresses human needs that go beyond the instrumental, resulting in an increasing body of knowledge about how users form overall evaluative judgments on the quality of interactive products. An aspect largely neglected so far is that of temporality, i.e. how the quality of users' experience develops over time. This paper presents an in-depth, five-week ethnographic study that followed 6 individuals during an actual purchase of the Apple iPhone". We found prolonged use to be motivated by different qualities than the ones that provided positive initial experiences. Overall, while early experiences seemed to relate mostly to hedonic aspects of product use, prolonged experiences became increasingly more tied to aspects reflecting how the product becomes meaningful in one's life. Based on the findings, we promote three directions for CHI practice: designing for meaningful mediation, designing for daily rituals, and designing for the self.”

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Koca, Aylin, Karapanos, Evangelos and Brombacher, Aarnout (2009): 'Broken Expectations' from a global business perspective. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 4267-4272. Available online

“Especially in the past few years, there has been an increase in the rejection rate of interactive consumer electronics products in the field, not due to broken hardware or software, but due to 'broken expectations' of users. However, operational methods to capture triggering contextual reasons are not functional in the industry. In addressing this gap, we propose systematic analysis of qualitative user feedback data resources from the field by utilizing our Disconfirmed Expectations Ontology (DEO). DEO provides for an efficient means to elicit relevant -but currently unrecognizable- feedback from the field to communicate that to the respective units in a product development process. We further demonstrate the utilization of DEO on a rich qualitative data set regarding the Apple iPhone".”

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» 2008 «

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Karapanos, Evangelos, Wensveen, Stephan, Friederichs, Bart and Martens, Jean-Bernard (2008): Do knobs have character?: exploring diversity in users' inferences. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 2907-2912. Available online

“Physical controls are now ubiquitous in everyday interactions. Empirical studies of physical interactions have traditionally been exploring instrumental aspects such as error rate and experienced workload. Recently, affective aspects of physical interaction have attracted an increased interest. In this paper we further argue that physical controls might have a character. We describe an exploratory study that aimed at understanding whether individuals form character judgments of physical controls based on haptic information, and explored the diversity across individuals' inference processes.”

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Karapanos, Evangelos, Hassenzahl, Marc and Martens, Jean-Bernard (2008): User experience over time. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 3561-3566. Available online

“The way we experience and evaluate interactive products develops over time. An exploratory study aimed at understanding how users form evaluative judgments during the first experiences with a product as well as after four weeks of use. Goodness, an evaluative judgment related to the overall satisfaction with the product, was largely formed on the basis of pragmatic aspects (i.e. utility and usability) during the first experiences; after four weeks of use identification (i.e. what the products expresses about its owner) became a dominant aspect of how good a product is. Surprisingly, beauty judgments were largely affected by stimulation (e.g. novelty) during the first experiences. Over time stimulation lost its power to make the product beautiful in the users' eyes.”

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Karapanos, Evangelos and Martens, Jean-Bernard (2008): The quantitative side of the Repertory Grid Technique: some concerns. In: Proceedings of the workshop Now Lets Do It in Practice User Experience Evaluation Methods in Product Development, Human factors in computing systems CHI 08 2008, Florence, Italy. . Available online

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Szostek, Agnieszka Matysiak, Karapanos, Evangelos, Eggen, Berry and Holenderski, Mike (2008): Understanding the implications of social translucence for systems supporting communication at work. In: Proceedings of ACM CSCW08 Conference on Computer-Supported Cooperative Work 2008. pp. 649-658. Available online

“In this paper we describe a study that explored the implications of the Social Translucence framework for designing systems that support communications at work. Two systems designed for communicating availability status were empirically evaluated to understand what constitutes a successful way to achieve Visibility of people's communicative state. Some aspects of the Social Translucence constructs: Visibility, Awareness and Accountability were further operationalized into a questionnaire and tested relationships between these constructs through path modeling techniques. We found that to improve Visibility systems should support people in presenting their status in a contextualized yet abstract manner. Visibility was also found to have an impact on Awareness and Accountability but no significant relationship was seen between Awareness and Accountability. We argue that to design socially translucent systems it is insufficient to visualize people's availability status. It is also necessary to introduce mechanisms stimulating mutual Awareness that allow for maintaining shared, reciprocical knowledge about communicators' availability state, which then can encourage them to act in a socially responsible way.”

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Koca, Aylin, Funk, Mathias, Karapanos, Evangelos, Rozinat, Anne and Gaarden, Nico van der (2008): Grasping product pragmatics: a case with internet on tv. In: Darnell, Michael J., Masthoff, Judith, Panabaker, Sheri, Sullivan, Marc and Lugmayr, Artur (eds.) UXTV 2008 - Proceeding of the 1st International Conference on Designing Interactive User Experiences for TV and Video October 22-24, 2008, Silicon Valley, California, USA. pp. 193-202. Available online

» 2007 «

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Karapanos, Evangelos and Martens, Jean-Bernard (2007): On the discrepancies between designers' and users' perceptions as antecedents of failures in motivating use. In: International Conference on Interfaces and Human Computer Interaction 2007, Lisbon, Portugal. . Available online

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Karapanos, Evangelos and Martens, Jean-Bernard (2007): Characterizing the diversity in users' perceptions. In: Human-Computer Interaction - INTERACT 2007 2007, Rio de Janeiro, Brazil. . Available online

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Karapanos, Evangelos and Martens, Jean-Bernard (2007): Characterizing the Diversity in Users' Perceptions. In: Baranauskas, Maria Cecília Calani, Palanque, Philippe A., Abascal, Julio and Barbosa, Simone Diniz Junqueira (eds.) DEGAS 2007 - Proceedings of the 1st International Workshop on Design and Evaluation of e-Government Applications and Services September 11th, 2007, Rio de Janeiro, Brazil. pp. 515-518. Available online

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Changes to this page (author)

13 Feb 2010: Enabled abstracts to be shown on Evangelos Karapanos's author page.
25 Jul 2009: Author was edited
25 Jul 2009: Author was edited
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25 Aug 2008: Conference Article was added to the page (approved by an editor)
25 Aug 2008: Author was added to the bibliography (approved by an editor)
22 Aug 2008: Page was edited
24 Jul 2008: Added a picture of Evangelos Karapanos
12 May 2008: Author was edited
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Publication statistics

Publication period:2007-2009
Publication count:11
Number of co-authors:14



Productive colleagues

Evangelos Karapanos's 3 most productive colleagues in number of publications:

Jodi Forlizzi:55
Marc Hassenzahl:33
John Zimmerman:32


Collaboration count

Number of publications with 3 favourite co-authors:

Jean-Bernard Martens:8
Aylin Koca:2
Marc Hassenzahl:2

 

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Learn more about Evangelos Karapanos:
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Mar 22

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