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International Conference on Social Informatics (SocialInformatics)

作者： Jae-Wook Ahn Jennifer Hammock Cynthia Parr Jennifer Preece Ben Shneiderman Katja Schulz Derek Hansen Dana Rotman Yurong He Department of Computer Science & Human-Computer Interaction Lab University of Maryland USA Smithsonian Institution USA College of Information Studies University of Maryland USA School of Technology Brigham Young University USA

Social network visualization is useful for understanding the complex structure of collaborative efforts such as citizen science projects. It has been widely accepted by social network analysts for exploring and analyzing networks by visually showing their members, the relationships among them, and their behaviors and attributes. The strength of social network visualization can be increased even further, by incorporating the time dimension of evolving networks. We analyzed the conversation network of a collaborative citizen science web platform called the Encyclopedia of Life using dynamic network visualization methods. This paper shows how the temporal visualization was applied to the social collaboration analysis of EOL and presents the findings. We found that some EOL web site features increased the interactive as well as individual member activities. We also found evidence that EOL curator activities encouraged the activities of other members.

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Examining the equivalence of simulated and real AR on a visual following and identification task

Examining the equivalence of simulated and real AR on a visu...

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IEEE Annual International Symposium Virtual Reality

作者： Cha Lee Steffen Gauglitz Tobias Höllerer Doug A. Bowman Four Eyes Laboratory University of California Santa Barbara USA Center for Human-Computer Interaction and Department of Computer Science Virginia Polytechnic Institute and State University USA

Mixed Reality (MR) simulation, in which a Virtual Reality (VR) system is used to simulate both the real and virtual components of an Augmented Reality (AR) system, has been proposed as a method for evaluating AR systems with greater levels of experimental control. However, factors such as the latency of the MR simulator may impact the validity of experimental results obtained with MR simulation. We present a study evaluating the effects of simulator latency on the equivalence of results from an MR simulator and a real AR system. We designed an AR experiment which required the participants to visually follow a virtual pipe around a small room filled with real targets and to find and identify the targets which were intersected by the pipe. We show that, with a 95% confidence interval, the results from all three simulated AR conditions fall well within one standard deviation of the real AR case.

关键词： Visualization Solid modeling Computational modeling USA Councils Augmented reality Target tracking

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On-body interaction: Armed and dangerous 12

On-body interaction: Armed and dangerous

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6th International Conference on Tangible, Embedded and Embodied interaction, TEI 2012

作者： Harrison, Chris Ramamurthy, Shilpa Hudson, Scott E. Human-Computer Interaction Institute Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 United States Heinz College Center for the Future of Work Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 United States Computer Science Department Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 United States

ISBN: (纸本)9781450311748

Recent technological advances in input sensing, as well as ultra-small projectors, have opened up new opportunities for interaction - the use of the body itself as both an input and output platform. Such on-body interfaces offer new interactive possibilities, and the promise of access to computation, communication and information literally in the palm of our hands. The unique context of on-body interaction allows us to take advantage of extra dimensions of input our bodies naturally afford us. In this paper, we consider how the arms and hands can be used to enhance on-body interactions, which is typically finger input centric. To explore this opportunity, we developed Armura, a novel interactive onbody system, supporting both input and graphical output. Using this platform as a vehicle for exploration, we prototyped many applications and interactions. This helped to confirm chief use modalities, identify fruitful interaction approaches, and in general, better understand how interfaces operate on the body. We highlight the most compelling techniques we uncovered. Further, this paper is the first to consider and prototype how conventional interaction issues, such as cursor control and clutching, apply to the on-body domain. Finally, we bring to light several new and unique interaction techniques. © 2012 ACM.

关键词： computer vision

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Parametric design of an excitation pattern for smooth vibrotactile flow on thin plates

Parametric design of an excitation pattern for smooth vibrot...

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International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (HAPTICS)

作者： J. Kang K. Cho J. Ryu Human-Machine-Computer Interface Laboratory Department of Mechatronics GIST Gwangju South Korea Department of Interaction Science Sungkyunkwan University Seoul South Korea

In the previous research, the vibrotactile flow that can be generated by the excitation pattern utilizing structural resonance phenomena of a thin plate was smoother than the vibrotactile flow generated by the conventional apparent tactile movement and phantom sensation methods. This paper further investigates effects of three design parameters (signal-duration, time-interval between the two actuating signals, cutoff-time) in the excitation pattern on the smoothness of the vibrotactile flow. User study results show that the time-interval between the two actuating signals is the most important parameter while the signal-duration is the second. This fact can be effectively used when designing an excitation pattern that can generate smoother vibrotactile flow.

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Visualization of processes in self-learning systems

Visualization of processes in self-learning systems

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Annual Conference on Privacy, Security and Trust, PST

作者： Gabriele Peters Kerstin Bunte Marc Strickert Michael Biehl Thomas Villmann Human-Computer Interaction FernUniversität in Hagen Germany CITEC-Cognitive Interaction Technology Center of Excellence Bielefeld University Germany Department of Computer Science and Mathematics University of Marburg Germany Johann Bernoulli Inst. for Mathematics & Computer Science University of Groningen The Netherlands Computational Intelligence Group University of Applied Sciences Mittweida Germany

One aspect of self-organizing systems is their desired ability to be self-learning, i.e., to be able to adapt dynamically to conditions in their environment. This quality is awkward especially if it comes to applications in security or safety-sensitive areas. Here a step towards more trustful systems could be taken by providing transparency of the processes of a system. An important means of giving feedback to an operator is the visualization of the internal processes of a system. In this position paper we address the problem of visualizing dynamic processes especially in self-learning systems. We take an existing self-learning system from the field of computer vision as an example from which we derive questions of general interest such as possible options to visualize the flow of information in a dynamic learning system or the visualization of symbolic data. As a side effect the visualization of learning processes may provide a better understanding of underlying principles of learning in general, i.e, also in biological systems. That may also facilitate improved designs of future self-learning systems.

关键词： Visualization Data visualization Learning systems Shape Electronic mail Machine learning Security

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Tailoring feedback to users' actions in a persuasive game for household electricity conservation

Tailoring feedback to users' actions in a persuasive game fo...

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7th International Conference on Persuasive Technology, PERSUASIVE 2012

作者： Gamberini, Luciano Spagnolli, Anna Corradi, Nicola Jacucci, Giulio Tusa, Giovanni Mikkola, Topi Zamboni, Luca Hoggan, Eve Human Technology Lab. Department of General Psychology University of Padova Via Venezia 8 35131 Padova Italy HIIT Department of Computer Science University of Helsinki Finland IES Solutions Catania Italy BaseN Helsinki Finland

ISBN: (纸本)9783642310362

Recent work has begun to focus on the use of games as a platform for energy awareness and eco-feedback research. While technical advancements (wireless sensors, fingerprinting) make timely and tailored feedback an objective within easy reach, we argue that taking into account the users' own personal consumption behavior and tailoring feedback accordingly is a key requirement and a harder challenge. We present a first attempt in this direction, EnergyLife, which is designed to support the users' actions and embeds contextualized feedback triggered by specific actions of the user, called 'smart advice'. We conclude by showing the results of a four-month trial with four households that returned promising results on the effectiveness and acceptance of this feature. © 2012 Springer-Verlag.

关键词： Feedback

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Tactile feedback for button GUI on touch devices

Tactile feedback for button GUI on touch devices

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30th ACM Conference on human Factors in Computing Systems, CHI 2012

作者： Shin, Heesook Lim, Jeong-Mook Lee, Jong-Uk Kyung, Ki-Uk Lee, Geehyuk Smart Interface Research Team Electronics and Telecommunications Research Institute 161 Gajeongno Yuseong-gu Daejeon Korea Republic of Smart Interface Research Team Electronics and Telecommunications Research Institute Korea Republic of Human Computer Interaction Lab Korea Advanced Institute of Science and Technology 335 Gwahangno Yuseong-gu Deajeon Korea Republic of

In this paper, we describe a tactile feedback for a button GUI activated by a tap gesture on mobile touch devices. We implemented a new HW platform based on a film-type actuator to obtain a large range of tactile expression. From the analysis of touch interaction and user tests, we designed tactile feedback patterns and evaluated them. Two experimental results showed rapid response time, short falling time, and patterns responding to 'Touch' and 'Release' user gestures are important elements for simulation of the feeling of physical button clicking. © 2012 Authors.

关键词： Graphical user interfaces

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Classifying behavior patterns of user nodes

Classifying behavior patterns of user nodes

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International Conference on Cloud Computing and Social Networking (ICCCSN)

作者： Gyuwon Song Suhyun Kim Human Computer Interaction and Robotics Department University of Science and Technology Daejeon South Korea Imaging Media Research Center Korea Institute of Science and Technology Seoul South Korea

To increase the scalability of cloud computing, utilizing resources of individual users has been widely adopted especially in video streaming services. Accurately predicting behavior of user nodes is critical to achieve a high efficiency in such a peer-assisted system. Though there have been many measurement studies on peer-to-peer systems, most of them have focused on the design and characterization of the systems. Thus the behavior patterns of individual nodes have seldom been studied. In this paper, we present new techniques for classifying behavior of nodes in terms of availability and compare them with naive manual classification. We apply a k-means clustering algorithm with various classification criteria on real trace data of a peer-to-peer system. Our analysis shows that there are three dominant time zones with respect to the availability peak time. Our study will give a useful hint to a system designer in handling churns more efficiently based on the peer classification.

关键词： Peer to peer computing Availability Shape computers Clustering algorithms USA Councils Scalability

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Conversational gaze mechanisms for humanlike robots

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ACM Transactions on Interactive Intelligent Systems 2012年第2期1卷 1–33页

作者： Mutlu, Bilge Kanda, Takayuki Forlizzi, Jodi Hodgins, Jessica Ishiguro, Hiroshi Department of Computer Sciences University of Wisconsin-Madison 1210W. Dayton St. Madison WI 53706 United States Intelligent Robotics and Communication Laboratories ATR 2-2-2 Hikaridai Soraku-gun Seika-cho Kyoto 619-0224 Japan Human-Computer Interaction Institute Carnegie Mellon University 5000 Forbes Ave. Pittsburgh PA 15213 United States Robotics Institute Carnegie Mellon University 5000 Forbes Ave. Pittsburgh PA 15213 United States Department of System Innovation Graduate School of Engineering Science Osaka University 1-3 Machikaneyama Toyonaka Osaka Japan

During conversations, speakers employ a number of verbal and nonverbal mechanisms to establish who participates in the conversation, when, and in what capacity. Gaze cues and mechanisms are particularly instrumental in establishing the participant roles of interlocutors, managing speaker turns, and signaling discourse structure. If humanlike robots are to have fluent conversations with people, they will need to use these gaze mechanisms effectively. The current work investigates people's use of key conversational gaze mechanisms, how they might be designed for and implemented in humanlike robots, and whether these signals effectively shape human-robot conversations. We focus particularly on whether humanlike gaze mechanisms might help robots signal different participant roles, manage turn-exchanges, and shape how interlocutors perceive the robot and the conversation. The evaluation of these mechanisms involved 36 trials of three-party human-robot conversations. In these trials, the robot used gaze mechanisms to signal to its conversational partners their roles either of two addressees, an addressee and a bystander, or an addressee and a nonparticipant. Results showed that participants conformed to these intended roles 97% of the time. Their conversational roles affected their rapport with the robot, feelings of groupness with their conversational partners, and attention to the task. © 2012 ACM.

关键词： human robot interaction

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Changing requirements to HCI funding: A global perspective

Changing requirements to HCI funding: A global perspective

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30th ACM Conference on human Factors in Computing Systems, CHI 2012

作者： Evers, Vanessa Brewster, Stephen Lazar, Jonathan Liu, Zhengjie Marsden, Gary Prates, Raquel Nijboer, Femke Human Media Interaction University of Twente Enschede 7500 AE Netherlands School of Computing Science University of Glasgow Glasgow G12 8QQ United Kingdom Universal Usability Laboratory Towson University Towson MD 8000 United States Sino-European Usability Center Dalian Maritime University Dalian 116026 China Department of Computer Science University of Cape Town Cape Town South Africa Department of Computer Science Universidade Federal de Minas Gerais Belo Horizonte MG Brazil

The requirements for funding for HCI research are changing globally. In this SIG meeting, we will review with panel members and high-level grant decision makers from different continents and countries how the requirem... 详细信息

ISBN: (纸本)9781450310161

关键词： Decision making

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