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13th International Conference on interaction Design and Children, IDC 2014

作者： Rust, Karen Foss, Elizabeth Bonsignore, Elizabeth McNally, Brenna Hordatt, Chelsea Malu, Meethu Mei, Bie Gumbs, Hubert Kofi Human-Computer Interaction Lab. University of Maryland 2117 Hornbake Library South Wing College Park MD 20742 United States

ISBN: (纸本)9781450322720

Performative Experience Design (PED) is an extension of experience design focusing on the unique time-bound encounter between performers and spectators. Technology is purposefully designed to enhance the experience between audience and performers. PED has been studied with adult participants;however, it has not been explored with children. We conducted a Cooperative Inquiry session to explore 1) how children want to interact with live performances;2) how they seek to change a story in live performances;and 3) a specific technique that might facilitate designing for such interactions. We present our initial findings regarding children's perceptions of what constitutes live performance and the ways in which children want to use technology to interact with, direct, and respond to narrative structures and characters within live performances. We include a discussion of the features of a specific co-design technique for supporting the ideation process of our child designers. Copyright 2014 ACM.

关键词： Design

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Motion estimation of multiple depth cameras using spheres

Motion estimation of multiple depth cameras using spheres

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作者： Deng, Xiaoming Liu, Jie Tian, Feng Chang, Liang Wang, Hongan Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences China College of Information Science and Technology Beijing Normal University China

ISBN: (纸本)9781479957514

Automatic motion estimation of multiple depth cameras has remained a challenging topic in computer vision due to its reliance on the image correspondence problem. In this paper, spherical objects are employed to estimate motion parameters between multiple depth cameras. We move a sphere several times in the common view of depth cameras. We fit the spherical point clouds to get the sphere centers in each depth camera system, and then introduce a factorization based approach to estimate motions between the depth cameras. Both simulated and real experiments show the robustness and effectiveness of our method. © 2014 IEEE.

关键词： Motion estimation

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Real-time collision detection with two-level spatial hashing on GPU 22

Real-time collision detection with two-level spatial hashing...

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22nd Pacific Conference on computer Graphics and Applications, PG 2014

作者： Hong, Yang Wu, Wen Chen, Hui Department of Computer and Information Science Faculty of Science and Technology University of Macau China Department of Computer Science and Engineering The Chinese University of Hong Kong Hong Kong Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Science Beijing China

ISBN: (纸本)9783905674736

In this paper, a two-level parallel spatial hashing method is presented for real-time collision detection of deformable objects based on modern GPU architecture. The second-level of spatial hashing is used to improve the culling efficiency. Moreover, a novel encoding method on GPU is proposed to compensate the inflexibility of the GPU memory system. It can efficiently determine the colliding pairs of primitives between deformable objects. The experimental results show that our method can perform high culling efficiency with low memory cost. © The Eurographics Association 2014.

关键词： Graphics processing unit

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Design and evaluation of web interfaces for informal care providers in senior monitoring

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Proceedings of the Association for Information Science and Technology 2014年第1期50卷 1-10页

作者： Lu Xiao Xueheng Yan Alison Emery Human-Computer Interaction Lab Faculty of Information & Media Studies The University of Western Ontario London ON Canada

It has been recognized that most seniors prefer to age in a place with familiar surroundings until their health makes this impossible. In an attempt to address the aging phenomenon, as well as recognize seniors' preference, we worked with a Canada-based company that develops a sensor-based home monitoring system for people to monitor the home activities of independently living seniors. Our role was to develop web interfaces that present sensor data to the intended web users – the seniors' informal care providers (e.g., their close friends or family members). In this paper, we present the information design and the web interface prototypes, and report the results of our formative evaluations through cognitive walkthrough and heuristic evaluation methods. The common problems discovered in both methods were problematic notification mechanism, inconsistency, background and layout. Each method also detected usability issues that the other did not. Our work adds more empirical evidence to the importance of combining evaluation methods in a study. The experiences in this study also helped us reflect on approaches and strategies when working with industry partners.

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26th Annual Computational Neuroscience Meeting (CNS*2017) of the Organization for Computational Neuroscience Antwerp, Belgium, July 15-20, 2017

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BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 59-59页

作者： [Anonymous] Indiana University Purdue University Indianapolis Indianapolis IN 46032 USA Stark Neurosciences Research Institute Indiana University School of Medicine Indianapolis IN 46032 USA Department of Mathematics East Carolina University Greenville NC 27858 USA Jülich Supercomputing Centre Forschungszentrum Jülich 52425 Jülich Germany Future Systems Swiss National Supercomputing Centre 8092 Zurich Switzerland User Engagement and Support Swiss National Supercomputing Centre 6900 Lugano Switzerland Institut de Neurosciences des Systèmes Aix Marseille Univ 13005 Marseille France Simulation Lab Neuroscience Forschungszentrum Jülich Jülich Germany Department of Experimental Psychology Ghent University 9000 Ghent Belgium Donders Center for Cognitive Neuroimaging Radboud University 6525HR Nijmegen The Netherlands Department of Electrical Computer and Energy Engineering University of Colorado Boulder CO 80309 USA Department of Neurosurgery Johns Hopkins School of Medicine Baltimore MD 21287 USA Department of Neurology Johns Hopkins School of Medicine Baltimore MD 21287 USA Department of Otolaryngology Johns Hopkins School of Medicine Baltimore MD 21287 USA INSERM U968 Paris France Sorbonne Universités UPMC University Paris 06 UMR_S 968 Institut de la Vision Paris France CNRS UMR_7210 Paris France Department of Computer Architecture and Technology University of Granada (CITIC) Granada Spain Sorbonne Universités UPMC Univ Paris 06 INSERM CNRS Institut de la Vision Paris France Department of Adaptive Machine Systems Osaka University Osaka Japan Department of Computer Science University of Cergy-Pontoise Cergy-Pontoise France Department of Physics and Astronomy College of Charleston Charleston SC 29424 USA School of Physics Faculty of Science University of Sydney Sydney NSW 2006 Australia Center of Excellence for Integrative Brain Function Australian Research Council Sydney Australia Max Planck Institute for Human Cognitive and Brain Sciences Saxony Lei

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Left and right hand distinction for multi-touch tabletop interactions 14

Left and right hand distinction for multi-touch tabletop int...

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19th International Conference on Intelligent User Interfaces, IUI 2014

作者： Zhang, Zhensong Zhang, Fengjun Chen, Hui Liu, Jiasheng Wang, Hongan Dai, Guozhong 1Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences China Information Center Guodian Finance Co. Ltd. China

ISBN: (纸本)9781450321846

In multi-touch interactive systems, it is of great significance to distinguish which hand of the user is touching the surface in real time. Left-right hand distinction is essential for recognizing the multi-finger gestures and further fully exploring the potential of bimanual interaction. However, left-right hand distinction is beyond the capability of most existing multi-touch systems. In this paper, we present a new method for left and right hand distinction based on the human anatomy, work area, finger orientation and finger position. Considering the ergonomics principles of gesture designing, the body-forearm triangle model was proposed. Furthermore, a heuristic algorithm was introduced to group multi-touch contact points and then made left-right hand distinction. A dataset of 2880 images has been set up to evaluate the proposed left-right hand distinction method. The experimental results demonstrate that our method can guarantee the high recognition accuracy and real time performance in freely bimanual multi-touch interactions. © 2014 ACM.

关键词： Heuristic algorithms

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Incorporating peephole interactions into children's second language learning activities on mobile devices 14

Incorporating peephole interactions into children's second l...

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13th International Conference on interaction Design and Children, IDC 2014

作者： McNally, Brenna Guha, Mona Leigh Norooz, Leyla Rhodes, Emily Findlater, Leah Human-Computer Interaction Lab. College of Information Studies University of Maryland College Park MD 20742 United States Usability Lab. College of Arts and Sciences University of Baltimore Baltimore MD 21201 United States

ISBN: (纸本)9781450322720

Physical movement has the potential to enhance learning activities. To investigate how movement can be incorporated into children's mobile language learning, we designed and evaluated two versions of a German vocabulary game called Scenic Words. The first version used movement-based dynamic peephole navigation, which requires physical movement of the arms, while the second version used touch-based static peephole navigation, which only requires standard touchscreen interactions;static peepholes are the status quo interaction technique for navigation, commonly found, for example, in map applications and games. To compare the two types of navigation and to assess children's reactions to dynamic peepholes, we conducted an in-home study with 16 children (ages 8-9). The children participated in pairs but individually played each version of the game on a mobile device. While results showed that the more familiar static peepholes were the preferred interaction style overall, participants became accustomed to the movement-based dynamic peepholes during the study. Participants noted that the dynamic peephole interaction became easier over time, and that it had some advantages such as for dragging-and-dropping elements in the game. Copyright © 2014 ACM.

关键词： Dynamics

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P-33: A Comprehensive Evaluation of Visual Fatigue on Viewing Small Autostereoscopic Display

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SID Symposium Digest of Technical Papers 2015年第1期46卷

作者： Danli Wang Xinpan Yang Yaohua Xie Zijian Wan State Key Laboratory of Computer Institute of Software Chinese Academy of Sciences Beijing China b Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China

Stereoscopic displays are promising and have many applications in various fields because they can provide amazing visual effects. However, one of the inevitable problems is that they also cause visual fatigue after durative viewing. Recent years, many researches have been proposed on the visual fatigue during stereoscopic viewing. But there are very few researches on the visual fatigue during a continuous viewing process, especially for those combine both subjective and objective evaluation. Besides, with the development and popularization of mobile devices, it is now possible for users to experience stereoscopic effects using mobile devices anytime and anywhere. In this paper, a comprehensive evaluation method is proposed. Subjective scores, Electrocardiograph (ECG) and eye movement of all subjects were collected when they were viewing stereoscopic videos. These data were then used to analyze the change of the visual fatigue during viewing. A mobile device was adopted and a comparative experiment was designed to assess the change of the visual fatigue when viewing 2D and 3D content respectively. Eighteen subjects were employed in the experiment, and the results show that the visual fatigue is generally greater when viewing 3D contents than when viewing similar 2D contents.

关键词： Visual fatigue evaluation method autostereoscopic display

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CTArcade: Computational thinking with games in school age children

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International Journal of Child-computer interaction 2014年第1期2卷 26-33页

作者： Lee, Tak Yeon Mauriello, Matthew Louis Ahn, June Bederson, Benjamin B. Human-Computer Interaction Lab University of Maryland College Park 20742 MD United States Computer Science Department University of Maryland College Park 20742 MD United States ISchool University of Maryland College Park 20742 MD United States College of Education University of Maryland College Park 20742 MD United States

We believe that children as young as ten can directly benefit from opportunities to engage in computational thinking. One approach to provide these opportunities is to focus on social game play. Understanding game play is common across a range of media and ages. Children can begin by solving puzzles on paper, continue on game boards, and ultimately complete their solutions on computers. Through this process, learners can be guided through increasingly complex algorithmic thinking activities that are built from their tacit knowledge and excitement about game play. This paper describes our approach to teaching computational thinking skills without traditional programming-but instead by building on children's existing game playing interest and skills. We built a system called CTArcade, with an initial game (Tic-Tac-Toe), which we evaluated with 18 children aged 10-15. The study shows that our particular approach helped young children to better articulate algorithmic thinking patterns, which were tacitly present when they played naturally on paper, but not explicitly apparent to them until they used the CTArcade interface. © 2014 Elsevier B.V..

关键词： Computational thinking Design Games human factors Learning

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Propagation of errors in citation networks: a study involving the entire citation network of a widely cited paper published in, and later retracted from, the journal Nature

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Research integrity and peer review 2016年第1期1卷 3页

作者： Paul E van der Vet Harm Nijveen 1Human Media Interaction Group Department of Computer Science University of Twente Drienerlolaan 5 Enschede 7522 NB the Netherlands. 2ZGT Academy Ziekenhuisgroep Twente Zilvermeeuw 1 Almelo 7609 PP the Netherlands. 3Bioinformatics Laboratory Wageningen University Droevendaalsesteeg 1 Wageningen 6708 PB the Netherlands. 4Wageningen Seed Lab Laboratory of Plant Physiology Wageningen University Droevendaalsesteeg 1 Wageningen 6708 PB the Netherlands.

BACKGROUND:In about one in 10,000 cases, a published article is retracted. This very often means that the results it reports are flawed. Several authors have voiced concerns about the presence of retracted research in the memory of science. In particular, a retracted result is propagated by citing it. In the published literature, many instances are given of retracted articles that are cited both before and after their retraction. Even worse is the possibility that these articles in turn are cited in such a way that the retracted result is propagated further. METHODS:We have conducted a case study to find out how a retracted article is cited and whether retracted results are propagated through indirect citations. We have constructed the entire citation network for this case. RESULTS:We show that directly citing articles is an important source of propagation of retracted research results. In contrast, in our case study, indirect citations do not contribute to the propagation of the retracted result. CONCLUSIONS:While admitting the limitations of a study involving a single case, we think there are reasons for the non-contribution of indirect citations that hold beyond our case study.

关键词： Citation network Citing behaviour Retraction

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