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Conference on human Factors in Computing Systems, CHI EA 2005

作者： Foley, James Beaudouin-Lafon, Michel Grudin, Jonathan Hollan, James Hudson, Scott Olson, Judy Verplank, Bill Laboratoire de Recherche en Informatique Bât 490 Université Paris Sud 91405 Orsay Cedex France GVU Center and College of Computing Georgia Institute of Technology Atlanta GA 30332-0280 United States Microsoft Research Bellevue WA United States Department of Cognitive Science University of California San Diego CA 92093-0515 United States Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh PA 15213-3891 United States School of Information Univ. of Michigan Ann Arbor MI 48109-1092 United States Visiting Scholar Stanford University Department of Computer Science Stanford CA 94305-9035 United States

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Advanced robotic residence for the elderly/the handicapped: realization and user evaluation

Advanced robotic residence for the elderly/the handicapped: ...

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IEEE International Conference on Rehabilitation Robotics (ICORR)

作者： Jin-Woo Jung Jun-Hyeong Do Young-Min Kim Kwang-Suhk Suh Dae-Jin Kim Z.Z. Bien Human-friendly Welfare Robot System research center KAIST South Korea Department of Electrical Engineering and Computer Science KAIST Daejeon South Korea

A novel advanced robotic residence, Intelligent Sweet Home (ISH), is developed at KAIST, Korea for testing advanced concepts for independent living of the elderly and the physically handicapped. The work focuses on human-friendly technical solutions for motion/mobility assistance, health monitoring, and advanced human-machine interfaces that provide easy control of both assistive devices and home-installed appliances. To improve the inhabitant's comfort, an intelligent bed, intelligent wheelchair and mechatronic transfer robot were developed. And, various interfaces based on hand gestures and voice, and health monitoring system were studied. This paper emphasizes the realization scheme of Intelligent Sweet Home and user evaluation by a physically handicapped person.

关键词： Senior citizens Intelligent robots Monitoring Testing Man machine systems Motion control Home appliances Wheelchairs Mechatronics Mobile robots

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Comparing interlaced and progressive scans for MPEG coding of medical video

Comparing interlaced and progressive scans for MPEG coding o...

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Annual Northeast Bioengineering Conference

作者： Chengquan Hu R.J. Sclabassi M.L. Scheuer J. Yang J. Xu Q. Liu M. Sun College of Computer Science and Technology Jilin University Changchun China Department of Electrical Engineering University of Pittsburgh Pittsburgh PA USA Department of Electrical Engineering Department of Neurological Surgery Department of Biomedical Engineering University of Pittsburgh Pittsburgh PA USA Department of Neurology University of Pittsburgh Pittsburgh PA USA Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh PA USA

This paper examines MPEG-4 coding efficiency for interlaced and progressively scanned video data recorded during remote patient monitoring. Experiments are performed using both interlaced and progressive coding methods to compress interlaced, deinterlaced and progressively scanned video sequences at different bit rates. Our results show that progressively scanned video outperforms interlaced video in both coding efficiency and video quality. We also found that the use of a deinterlacing algorithm improves video coding performance. In addition, we found that interlaced or progressively scanned video data can be compressed using either progressive or interlaced coding algorithms without significant difference in performance.

关键词： Video compression Video equipment PSNR MPEG 4 Standard Video coding Layout Biomedical engineering Data engineering Patient monitoring Codecs

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The influence of synchrony and sensory modality on the person perception process in computer-mediated groups

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Journal of computer-Mediated Communication 2005年第3期10卷

作者： Nowak, Kristine L. Watt, James Walther, Joseph B. Communication Science Department University of Connecticut United States Rensselaer Social and Behavioral Research Laboratory Rensselaer Polytechnic Institute United States Department of Communication Cornell University United States Human Computer Interaction Lab. University of Connecticut United States Department of Communication Sciences University of Connecticut 850 Bolton Road U-1085 Storrs CT 06269 United States Rensselaer Social and Behavioral Research Laboratory United States Department of Language Literature and Communication Rensselaer Polytechnic Institute United States James Watt LL and C Rensselaer Polytechnic Institute 110 8th Street Troy NY 12180 United States Dept. of Communication Cornell University 336 Kennedy Hall Ithaca NY 14853-4203 United States

This study examined the effects of synchrony and the number of cues on the person perception process in computer-mediated communication. One hundred and forty-two participants in groups of three or four engaged in collaboration over five weeks to develop oral reports, using alternate versions of communication systems or meeting face-to-face. Consistent with the hyperpersonal model, those using low cue media felt their partners were more credible, and reported more social attraction, less uncertainty, and more involvement in the interaction than those using high cue media. People interacting with synchronous media felt increased social attraction, self-reported involvement, and certainty. They also felt that their conversations were more effective, although this effect appeared mainly in low cue groups. Results of an exploratory path analysis suggest that future research should focus on causal chains rather than direct effects, and that intervening variables (such as involvement) may be central to our understanding of the effects of communication technology systems. © 2005 Journal of computer-Mediated Communication.

关键词： Communication systems

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Dynamically deployed support as a potential solution to negative behavioral adaptation

Dynamically deployed support as a potential solution to nega...

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IEEE Symposium on Intelligent Vehicle

作者： R. Kovordanyi K. Ohlsson T. Alm Cognitive technology at the Department of Computer and Information Science Linköping Universitet Sweden Human-machine interaction at the division of Industrial Ergonomics Department of Mechanical Engineering Linköping Universitet Sweden Division of Industriai Ergonomics Department of Mechanical Engineering Linköping Universitet Linkoping Sweden

Advanced driver assistance systems are designed to make driving easier that is, to alleviate the driver's workload, and to increase traffic safety. However, traffic safety is affected by negative behavioral adaptation, meaning that drivers tend to increase speed and pay less attention to driving when supported by an advanced assistance system. We relate behavioral adaptation to reinforcement learning at a subconscious level, and propose that driver assistance is dynamically varied within predetermined safety limits. The aim of employing a dynamic assistance policy is to prevent the driver from noticing a constant improvement in vehicle handling. We conclude by describing ongoing work for empirically evaluating an improved lane departure warning system that uses a dynamic assistance policy.

关键词： Safety Vehicle dynamics Alarm systems Wheels US department of Transportation Learning Vehicle driving Sensor systems Ergonomics Torque

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Soft remote control system in the intelligent sweet home

Soft remote control system in the intelligent sweet home

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2005 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Jun-Hyeong Do Hyoyoung Jang Sung Hoon Jung Jinwoo Jung Zeungnam Bien Department of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology Daejeon South Korea Human-friendly Welfare Robot System Research Center Korea Advanced Institute of Science and Technology Daejeon South Korea

In this paper, we describe the "soft remote control system" that provides easy control of home installed appliances to improve the inhabitant's comfort. This system is feasible to control various home appliances naturally by recognizing the user's hand gestures in the "intelligent sweet home". The user selects the device that he/her wants to control by pointing it with his/her hand. Then, the user can command operation of the desired function via a predefined hand gesture. The approach complements the inconvenience of the conventional remote controllers giving additional freedom to persons with movement deficits and people without disabilities.

关键词： Control systems Intelligent systems Home appliances Cameras Intelligent robots Communication system control Robot vision systems Microphones Man machine systems TCPIP

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Feature selection for classification of SELDI-TOF-MS proteomic profiles

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Applied Bioinformatics 2005年第4期4卷 227-246页

作者： Hauskrecht, Milos Pelikan, Richard Malehorn, David E. Bigbee, William L. Lotze, Michael T. Zeh III, Herbert J. Whitcomb, David C. Lyons-Weiler, James Department of Computer Science University of Pittsburgh Pittsburgh PA United States University of Pittsburgh Cancer Institute University of Pittsburgh Pittsburgh PA United States Clinical Proteomics Facility University of Pittsburgh Pittsburgh PA United States Department of Pathology University of Pittsburgh Pittsburgh PA United States Department of Surgery University of Pittsburgh Pittsburgh PA United States Department of Medicine Cell Biology and Physiology Department of Human Genetics University of Pittsburgh Pittsburgh PA United States Cancer Biomarkers Laboratory University of Pittsburgh Pittsburgh PA United States Centers for Pathology and Oncology Informatics University of Pittsburgh Pittsburgh PA United States Center for Biomedical Informatics University of Pittsburgh Pittsburgh PA United States Department of Computer Science 5329 Sennott Building University of Pittsburgh Pittsburgh PA 15260 United States

Background: Proteomic peptide profiling is an emerging technology harbouring great expectations to enable early detection, enhance diagnosis and more clearly define prognosis of many diseases. Although previous research work has illustrated the ability of proteomic data to discriminate between cases and controls, significantly less attention has been paid to the analysis of feature selection strategies that enable learning of such predictive models. Feature selection, in addition to classification, plays an important role in successful identification of proteomic biomarker panels. Methods: We present a new, efficient, multivariate feature selection strategy that extracts useful feature panels directly from the high-throughput spectra. The strategy takes advantage of the characteristics of surface-enhanced laser desorption/ionisation time-of-flight mass spectrometry (SELDI-TOF-MS) profiles and enhances widely used univariate feature selection strategies with a heuristic based on multivariate de-correlation filtering. We analyse and compare two versions of the method: one in which all feature pairs must adhere to a maximum allowed correlation (MAC) threshold, and another in which the feature panel is built greedily by deciding among best univariate features at different MAC levels. Results: The analysis and comparison of feature selection strategies was carried out experimentally on the pancreatic cancer dataset with 57 cancers and 59 controls from the University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, USA. The analysis was conducted in both the whole-profile and peak-only modes. The results clearly show the benefit of the new strategy over univariate feature selection methods in terms of improved classification performance. Conclusion: Understanding the characteristics of the spectra allows us to better assess the relative importance of potential features in the diagnosis of cancer. Incorporation of these characteristics into feature selection strat

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Turning information visualization innovations into commercial products: lessons to guide the next success

Turning information visualization innovations into commercia...

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IEEE Symposium on Information Visualization (INFOVIS)

作者： B. Shneiderman R. Rao K. Andrews C. Ahlberg D. Brodbeck T. Jewitt J. Mackinlay Department of Computer Science & Human-Computer Interaction Laboratory Institute for Advanced Computer Studies College Park MD USA Inxight Software Inc. Sunnyvale CA USA Graz University of Technology IICM Graz Austria Spotfire Inc. Somerville MA USA Macrofocus GmbH Zurich Switzerland The Hive Group San Mateo CA USA User Interface Tableau Software Seattle WA USA

As information visualization matures as an academic research field, commercial spinoffs are proliferating, but success stories are harder to find. This is the normal process of emergence for new technologies, but the panel organizers believe that there are certain strategies that facilitate success. To teach these lessons, we have invited several key figures who are seeking to commercialize information visualization tools. The panelists make short presentations, engage in a moderated discussion, and respond to audience questions.

关键词： Turning Technological innovation Data visualization User interfaces Books Management training computer science Laboratories computer interfaces Educational institutions

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Towards improved myoelectric prosthesis control: High density surface EMG recording after targeted muscle reinnervation

Towards improved myoelectric prosthesis control: High densit...

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2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005

作者： Ping, Zhou Lowery, Madeleine M. Dewald, Julius P.A. Kuiken, Todd A. Neural Engineering Center for Artificial Limbs Rehabilitation Institute of Chicago Chicago IL United States Dept. of Physical Medicine and Rehabilitation Northwestern University Chicago IL United States Electrical and Computer Engineering Department Northwestern University Chicago IL United States Biomedical Engineering Department Northwestern University Chicago IL United States Dept. of Physical Medicine and Human Movement Science Northwestern University Chicago IL United States

ISBN: (纸本)0780387406

The control of shoulder disarticulation prostheses remains a challenging problem. Recently, a novel method, using targeted muscle reinnervation to develop additional myoelectric control sites, has Improved the control of myoelectric upper limb prosthesis In a patient with bilateral amputations at the shoulder disarticulation level [1]. Encouraged by this achievement, we recorded high density surface electromyogram (EMG) signals from the patient's reinnervated muscles as he actuated a variety of different movements. We believe that the reinnervated muscle activation patterns revealed by the high density EMG recording have the potential to further improve the myoelectric prosthesis control. As the Initial stage of the study, this paper presents the experiment of high density surface EMG recording, the preliminary EMG data analysis and the framework for future investigation with advanced feature extraction and pattern recognition techniques. ©2005 IEEE.

关键词： Myoelectrically controlled prosthetics

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Design and Implement the Stimuli Capsule at In-vitro Experiment

Design and Implement the Stimuli Capsule at In-vitro Experim...

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IEEE Region 10 International Conference TENCON

作者： S. H. Woo K. W. Yoon J. H. Lee Y. K. Moon C. H. Won T. W. Kim H. C. Choi J. H. Cho School of Electronic Engineering and Computer Science Kyungpook National University South Korea Department of Computer Control & Electrical Engineering Kyungil University South Korea College of Veterinary Medicine Department of physiology Kyungpook National University South Korea Advanced Research Center for Recovery of Human Sensibility Kyungpook National University South Korea

Recently, the capsule endoscope has been developed to observe image from the inside intestine. Such a capsule endoscope does not have locomotion or hold by it self. To get proper diagnosis and meditation, it is necessary to control capsule from outside to enable to guide locomotion. The designed and implemented capsule has feasibility to contracts the small intestine by electrical stimulus from stimulus pad. When the small intestine is contracted by electrical stimulus, the capsule can move to opposite direction which can boost moving speed of the capsule or change moving direction. The implemented stimuli capsule always monitors excessive energy transmit and automatically shut down electrical stimuli to make more secure. Also the stimuli capsule goes to stand by mode to save battery, and reset by comparator circuit which is connected to two stimulus pad. To verify the design and implement stimuli capsule, in-vitro experiments are performed with pig's small intestine.

关键词： In vitro Intestines Endoscopes Energy consumption Batteries Circuits Valves Moon Design engineering computer science

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