1,721,523 research outputs found
A design framework for designer systems
No full textThis chapter discusses the design of awareness systems, whose main function is a social one, namely, to support social communication, mediated social interactions and eventually relationships of the individuals they connect. We focus especially on connecting friends and family rather than on systems used in the context of collaborative work. Readers interested in this latter kind of applications are referred to the design frameworks by Ginelle and Gutwin (2005) and Gutwin and Greenberg (2002). Below, we outline the relevant design space and the corresponding challenges for the design of awareness systems. The challenges pertain to social aspects of interaction design rather than the technological challenges relating to such systems. As such, they are inspired by Jonathan Grudin’s exposition of design challenges for the domain of groupware applications (Grudin, 1994)
How to compare usability testing methods with children participants
No full textThe paper motivates the need to acquire methodological knowledge for involving children as test users in usability testing. It summarises a methodological framework for comparing usability tests and discusses its implications for future research
How to compare usability testing methods with children participants
No full textThe paper motivates the need to acquire methodological knowledge for involving children as test users in usability testing. It summarises a methodological framework for comparing usability tests and discusses its implications for future research
Using video for early interaction design
No full textThis chapter discusses how to use video for prototyping interactivity during early phases of design. Advantages and limitations of video prototyping are discussed and related to other ways of representing early design concepts. The chapter traces the introduction and development of this method in the field of human computer interaction (HCI), moving on to discuss how video can help involve stakeholders in the design process and especially users. A range of techniques, methodological choices, and practical advice for future video prototype creators are discussed, and illustrated with example
Grounding privacy with awareness : a social approach to describe privacy related issues in awareness systems
No full textBy their very nature, awareness systems bring about an increase in the level of communication between the individuals they connect. Sharing information regarding people’s whereabouts and activities raises privacy concerns, potentially compromising their ability to control who receives what information about them, in what form and at what times. Such privacy concerns can be more pronounced in cases where such information is captured and disclosed automatically, which can lead to unintentional and undesirable disclosure of information (Belloti and Sellen, 1993; Markopoulos, 2005)
Designing a Head-Up for game children
No full textHead-Up Games attempt to combine the technological benefits of modern electronic games with the social and physical advantages of traditional games. To demonstrate this concept, a Head-Up Game for 9- to 11-year-old children was designed and developed iteratively, with an intensive involvement of children for play-testing. This paper describes and reflects on the game’s design process and the implications regarding the concept of Head-Up Games. The final game, Stop the Bomb, was found to be physically and socially stimulating, understood and enjoyed by the target group, and preferred over a non-electronic version of the game at first encounter
FFT calculation of the L1-norm principal component of a data matrix
No full textThis paper presents a fast approximate rank-1 L1-norm Principal Component Analysis (L1-PCA) estimator implemented in the Fourier domain. Specifically, we first rephrase the problem of rank-1 L1-PCA estimation as a cyclic shift parameter estimation and then we present an algorithm for estimating the first L1-norm Principal Component (L1-PC) in the Fourier domain, practically using FFT. The proposed method is shown to be asymptotically efficient and our numerical studies corroborate its performance merits
Awareness of Daily Life Activities
No full textThe well-publicized aging of Western societies has prompted a growing interest into technologies that support awareness in cross-generational families. The idea of supporting continual and partly automated flow of information between seniors living alone and their social intimates has been gaining ground among researchers but even among industries. It is anticipated that such an information flow can help bridge geographical distance, discrepant lifestyles, and daily routines, potentially providing peace of mind to both parties and feelings of being connected
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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