1,721,273 research outputs found
Social Media and Virtual Reality for Risk Communication in case of Volcanic Eruptions
No full textSocial Media has demonstrated to be an important information source during crisis events. In this work, we propose an extension to an existing platform to improve data collection and sharing. This includes a Virtual Reality-based visualization for the community, crisis management authorities and scientists
Towards Preservation and Availability of Heterogeneous Cultural Heritage Research Data via a Virtual Museum
No full textUsable Security Policy Specification
No full textSecurity policies determine which security requirements have to be met in a domain and how they are implemented organizationally and/or technically. However, their specification at run-time poses a challenge for policy authors (e.g., IT administrators or end users), especially if they are inexperienced in this task. Thus, specification interfaces have to guide the policy author during the specification process. However, matching appropriate specification processes to the policy authors’ individual needs is challenging due to a high variability in the authors’ skill levels and security perceptions. In this paper, we identify existing specification approaches, derive generic specification paradigms and show the feasibility of one of them in an industrial case study
Case Studies
Full text linkThis chapter introduces a set of case studies that are used in the rest of the book. They encompass well known problem domains in Human-Computer In-teraction research and provide a practical focus for the approaches presented in this book. The set of case studies includes case studies concerned with: the controller interface to a (semi-automated) nuclear power plant; a partly-autonomous arrival management interactive system in the domain of air-traffic control; a user interface for new interactive cockpits and an interactive system used in rural and urban areas to maintain wind turbines. The final case study brings an interesting perspective for formal techniques, namely interactive public displays.Introductio
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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