1,721,312 research outputs found
Mobile Games with Touch and Indirect Sensor Control
No full textControls for games on mobile devices, e.g. smartphones, are mostly based on touch interaction or physical gestures like tilting the device. Both approaches often interfere with the player's view of the game world, e.g. by occluding parts of the screen, enforcing a limited view angle or fast shaky movements of the whole device. We present a novel control concept for mobile games integrating tiltinteraction and touch-input with different mappings depending on the current orientation of the device and a corresponding view of the virtual world. The result is a cleaner user interface with no distracting objects but enhanced interaction possibilities. An evaluation against software buttons shows that while our control concept is comparable regarding objective performance it significantly increases the subjective user experience
ScrollingHome
No full textProviding pedestrian navigation instructions on small
screens is a challenging task due to limited screen space. As
image-based approaches for navigation have been successfully
proven to outperform map-based navigation on mobile
devices, we propose to bring image-based navigation to
smartwatches. We contribute a straightforward pipeline to
easily create image-based indoor navigation instructions
that allow users to freely navigate in indoor environments
without any localization infrastructure and with minimal
user input on the smartwatch. In a user study, we show that
our approach outperforms the current state-of-the art application
in terms of task completion time, perceived task load
and perceived usability. In addition, we did not find an
indication that there is a need to provide explicit directional
instructions for image-based navigation on small screens
Challenges to Combating Toxicity and Harassment in Multiplayer Games: Involving the HCI Games Research Community
Get PDFToxicity is and remains a problem in multiplayer games, and can result in harm for players and game environments. Grounded in prior work, we present four challenges that impede solving the problem of toxicity and harassment. We believe that we need to overcome these challenges to ensure safe gaming spaces, and intend to stimulate discussion about how HCI Games research can make substantial contributions toward this goal
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Semantische Interaktion in Web-basierten Retrieval-Systemen : Einsatz von Semantic Web-Technologien und Social Networking Paradigmen für die Interaktion mit semi-strukturierten Webdaten
No full textExisting web retrieval models for exploration and interaction with web data do not take into account semantic information, nor do they allow for new forms of interaction by employing meaningful interaction and navigation metaphors in 2D/3D. This thesis researches means for introducing a semantic dimension into the search and exploration process of web content to enable a significantly positive user experience. Therefore, an inherently dynamic view beyond single concepts and models from semantic information processing, information extraction and human-machine interaction is adopted. Essential tasks for semantic interaction such as semantic annotation, semantic mediation and semantic human-computer interaction were identified and elaborated for two general application scenarios in web retrieval: Web-based Question Answering in a knowledge-based dialogue system and semantic exploration of information spaces in 2D/3D
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