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Proceedings of the 8th iternational conference on computer supported collaborative learning

作者： Kibum Kim Deborah Tatar Steve Harrison Center for Human Computer Interaction Department of Computer Science Virginia Tech

ISBN: (纸本)9780615154367

Peripheral participation is fundamental to collaborative learning. In the classroom, we see two situations in which peripheral participation is essential: formative assessment, during which a teacher attempts to assess the utility of an ongoing activity and intervenes if necessary; and peer-monitoring, during which a student attempts to learn what other students are doing. When augmenting the classroom with handheld, wireless computing devices, handling peripheral participation becomes more difficult. The proposed new handheld network service, Look, allows a late overhearer, who has not witnessed the creation of common ground, to monitor the interaction between group members already engaged in a collaborative situated learning without interrupting. laboratory experiences with our prototypes indicate that Look balances lightweight implementation, ease of use, and utility in a way that could enhance classroom communication and learning.

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High-resolution displays enhancing geo-temporal data visualizations 45

High-resolution displays enhancing geo-temporal data visuali...

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45th Annual ACM Southeast Conference, ACMSE 2007

作者： Booker, John Buennemeyer, Timothy Sabri, Andrew North, Chris Center for Human-Computer Interaction Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg VA 24061 United States Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University State University Blacksburg VA 24061 United States

ISBN: (纸本)1595936297

Intelligence analysis is difficult due to the volume and complexity of the data, as well as the subtlety of the connections that have to be made in order to identify threats. Information visualization techniques are necessary for human interpretation of this data, but many use a single monitor that lack the resolution and area needed to effectively display it. We developed an application specifically for a high resolution tiled display, taking advantage of its increased area and pixel count to show a detailed and thorough geospatial and timeline view of terrorist activity. These displays were well suited for intelligence analysis visualization due to their ability to provide access to numerous details from multiple views, and allowed users to maintain the context of data. This work showcased the ability of high resolution visualizations to assist intelligence analysts. Copyright 2007 ACM.

关键词： Data visualization

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The second international conference on human-Robot interaction

The second international conference on Human-Robot Interacti...

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作者： Schultz, Alan C. Breazeal, Cynthia Fong, Terry Kiesler, Sara Washington DC United States Department of Media Arts and Scienes MIT Media Lab. Intelligent Robotics Group NASA Ames Research Center Department of Computer Science and Human Computer Interaction Carnegie Mellon University Pittsburgh PA United States

The second international conference on human-Robot interaction (HRI-2007) was held in Arlington, Virginia, March 9-11, 2007. The theme of the conference was "Robot as Team Member" and included posters and paper presentations on teamwork, social robotics, adaptation, observation and metrics, attention, user experience, and field testing. One hundred seventy-five researchers and practitioners attended the conference, and many more contributed to the conference as authors or reviewers. HRI-2008 will be held in Amsterdam, The Netherlands from March 12-15, 2008. Copyright © 2007, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Robotics

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Towards Extreme(ly) Usable Software: Exploring Tensions Between Usability and Agile Software Development

Towards Extreme(ly) Usable Software: Exploring Tensions Betw...

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Agile Development Conference

作者： Jason Chong Lee D. Scott McCrickard Center for Human-Computer Interaction Department of Computer Science Virginia Technologies Blacksburg VA USA

Design is an inherently multidisciplinary endeavor. This raises the question of how to develop systems in ways that can best leverage the perspectives, practices, and knowledge bases of these different areas. Agile software development and usability engineering both address important aspects of system design, but there are tensions between the methods that make them difficult to integrate. This work presents a development approach that draws from extreme programming (XP), a widely practiced agile software development process, and scenario-based design (SBD), an established usability engineering process. It describes three key questions that need to be addressed for agile software development methods and usability engineering practices to work together effectively, and it introduces interface architectures and design representations that can address these questions.

关键词： Usability Programming Design engineering Process design computer architecture Software systems computer science Best practices Surges Probes

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An Empirical Comparison of Task Sequences for Immersive Virtual Environments

An Empirical Comparison of Task Sequences for Immersive Virt...

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IEEE Symposium on 3D User Interfaces (3DUI)

作者： Ryan P. Mcmahan Doug A. Bowman Department of Computer Science Center for Human-Computer Interaction Virginia Tech Antenna Group USA

System control - the issuing of commands - is a critical, but largely unexplored task in 3D user interfaces (3DUIs) for immersive virtual environments (IVEs). The task sequence (the order of operations in a system control task) is an important aspect of the design of a system control interface (SCI), because it affects the way the user must think about accomplishing the task. Most command line interfaces are based on the action-object task sequence (e.g. "rm ***"). Most graphical user interfaces (GUIs) are based on the object-action task sequence (e.g. click on an icon then select "delete" from a pop-up menu). An SCI for an IVE should be transparent and induce minimal cognitive load, but it is not clear which task sequences support this goal. We designed an experiment using an interior design application context to determine the cognitive loads induced by various task sequences in IVEs. By subtracting the expected time for a user to complete the task from the total time, we have estimated the cognitive time, dependent only on task sequence. Our experiment showed that task sequence has a significant effect on the cognitive loads induced in IVEs. The object-action sequence and similar task sequences induce smaller cognitive loads than those induced by the action-object sequence. These results can be used to create guidelines for creating 3DUIs for IVEs

关键词： Virtual environment Control systems Productivity Graphical user interfaces User interfaces computer science Computational modeling Analytical models computer simulation Application software

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NetLens: Iterative exploration of content-actor network data

NetLens: Iterative exploration of content-actor network data

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作者： Kang, Hyunmo Plaisant, Catherine Lee, Bongshin Bederson, Benjamin B. Human-Computer Interaction Laboratory University of Maryland Institute for Advanced Computer Studies College Park MD 20742 United States Department of Computer Science University of Maryland College Park MD 20742 United States Microsoft Research One Microsoft Way Redmond WA 98052 United States Computer Science Department Institute for Advanced Computer Studies University of Maryland College Park MD 20742 United States

Networks have remained a challenge for information retrieval and visualization because of the rich set of tasks that users want to accomplish. This paper offers an abstract Content-Actor network data model, a classification of tasks, and a tool to support them. The NetLens interface was designed around the abstract Content-Actor network data model to allow users to pose a series of elementary queries and iteratively refine visual overviews and sorted lists. This enables the support of complex queries that are traditionally hard to specify. NetLens is general and scalable in that it applies to any data set that can be represented with our abstract data model. This paper describes the use of NetLens with a subset of the ACM Digital Library consisting of about 4000 papers from the CHI conference written by about 6000 authors, and reports on a usability study with nine *** categories: H.5.2 Information Interfaces and Presentations: User Interfaces - graphical user interfaces (GUI), interaction styles, prototyping. © 2007 PalgraveMacmillan Ltd. All rights reserved.

关键词： Wireless networks

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Dialogue act recognition under uncertainty using Bayesian networks

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Natural Language Engineering 2007年第4期13卷 287-316页

作者： Keizer, Simon Den Akker, Rieks Op Computational Linguistics and Artificial Intelligence Group Faculty of Arts Tilburg University P.O. Box 90153 5000 LE Tilburg Netherlands Human Media Interaction Group Department of Electrical Engineering Mathematics and Computer Science University of Twente P.O. Box 217 7500 AE Enschede Netherlands

In this paper we discuss the task of dialogue act recognition as a part of interpreting user utterances in context. To deal with the uncertainty that is inherent in natural language processing in general and dialogue act recognition in particular we use machine learning techniques to train classifiers from corpus data. These classifiers make use of both lexical features of the (Dutch) keyboard-typed utterances in the corpus used, and context features in the form of dialogue acts of previous utterances. In particular, we consider probabilistic models in the form of Bayesian networks to be proposed as a more general framework for dealing with uncertainty in the dialogue modelling process. © 2007 Cambridge University Press.

关键词： Natural language processing systems

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Providing for Social Acceptance in Task Modelling for Robots

Providing for Social Acceptance in Task Modelling for Robots

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IEEE International Workshop on Robot and human Communication (ROMAN)

作者： Lars Oestreicher Department of Information Science Computing Science Unit Uppsala University Uppsala Sweden Human-Computer Interaction School of Computer Science and Communication Royal Institute of Technology Stockholm Sweden

A proper behaviour of a robot is probably of importance when we consider the possibility of having it accepted by people. For example, it has been shown that erratic or unexplained behaviour tends to be a cause of distrust in the robot. There are several other, more non-technical issues that need to be fulfilled by the robot in order to make it acceptable in society. Even for cognitive, intelligent and largely autonomous robots their tasks need to be modelled. One such task modelling method, task patterns, has been proposed earlier as a language for describing robot activities. In this article it is suggested that the task pattern language can be extended through a framework based on the ideas behind Design Patterns, to also incorporate modelling of task properties that are important to the acceptance of a robot in a social environment.

关键词： Robot sensing systems Cognitive robotics Intelligent robots human robot interaction Context modeling Information science computer science Power system modeling Collaboration

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Cognitive, Social, Sociable or just Socially Acceptable Robots?

Cognitive, Social, Sociable or just Socially Acceptable Robo...

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IEEE International Workshop on Robot and human Communication (ROMAN)

作者： Lars Oestreicher Department of Information Science Computing Science Unit University of Uppsala Uppsala Sweden Human-Computer Interaction School of Computer Science and Communication Royal Institute of Technology Stockholm Sweden

Today there is a large movement towards creating social and cognitive robots. Today there is research aiming at using robots as care support as well as social agents introduced in geriatric care and home care. Much of the research is aimed at the development of cognitive and social agents, since robot agents are considered to need ways of interacting with the people in the surrounding areas. In this perspective it is necessary to start thinking of robots not only in terms of social, cognitive or sociable, but also of socially acceptable. What are the requirements for a socially acceptable robot, and which properties in a robot provide for making it more or less acceptable as part of a social environment? In this paper a set of tentative acceptance properties is presented, together with the results from a pilot study trying to assess the importance of some of these properties for the social acceptance of domestic service robots.

关键词： Cognitive robotics human robot interaction Information science computer science Geriatrics Tellurium Loudspeakers Ear Medical services

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Hands-Off Therapist Robot Behavior Adaptation to User Personality for Post-Stroke Rehabilitation Therapy

Hands-Off Therapist Robot Behavior Adaptation to User Person...

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IEEE International Conference on Robotics and Automation (ICRA)

作者： Adriana Tapus Cristian Tapus Maja J Mataric Robotics Research Lab/Interaction Lab Department of Computer Science University of Southern California Los Angeles USA Mojave Research Lab Department of Computer Science California Institute of Technology Pasadena USA

This paper describes a hands-off therapist robot that monitors, assists, encourages, and socially interacts with post-stroke users in the process of rehabilitation exercises. We developed a behavior adaptation system that takes advantage of the users introversion-extroversion personality trait and the number of exercises performed in order to adjust its social interaction parameters (e.g., interaction distances/proxemics, speed, and vocal content) toward a customized post-stroke rehabilitation therapy. The experimental results demonstrate the robot's autonomous behavior adaptation to the user's personality and the resulting user improvements of the exercise task performance.

关键词： Rehabilitation robotics Medical treatment human robot interaction Robotics and automation computer science Pediatrics Adaptive systems Helium Cognitive robotics Senior citizens

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