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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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Analysis and design of differential electromagnetic transducer for implantable middle ear using finite element method

Analysis and design of differential electromagnetic transduc...

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International Conference on Solid State Sensors and Actuators (TRANSDUCERS)

作者： Min-Kyu Kim Young-Ho Yoon Hyung-Gyu Lim Byung-Seop Song Il-Yong Park Jin-Ho Cho Department of Medical & Biological Engineering Kyungpook National University South Korea School of Electrical Engineering & Computer Science Kyungpook National University South Korea Department of Rehabilitation Science & Technology Daegu University South Korea Advanced Research Center for Recovery of Human Sensibility Kyungpook National University South Korea

ISBN: (纸本)0780389948

A differential electromagnetic transducer (DET), which has similar frequency characteristics to those of the normal middle ear, has been designed and implemented for an implantable middle ear (IME). In order to optimize the DET characteristics that are practically determined by the electromagnetically forced vibration, a finite element analysis (FEA) simulation is carried out. The designed DET according to the simulation results is implemented using micro-machining technology. The vibrating displacement of the DET is about 200 nm in the range of 0.1 to 1.5 kHz when 1.5 mA/sub rms/ current is applied to the coil.

关键词： Electromagnetic analysis Ear Finite element methods Biomembranes Biomedical transducers Acoustic transducers humans Frequency Coils Auditory system

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Design and display of enhancing information in desktop information-rich virtual environments: Challenges and techniques

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Virtual Reality 2004年第1期8卷 41-54页

作者： Polys, Nicholas F. Bowman, Doug A. Department of Computer Science Center for Human Computer Interaction Virginia Polytechnic Institute and State University Blacksburg VA 24060 United States

Information-rich virtual environments (IRVEs) have been described as environments in which perceptual information is enhanced with abstract (or symbolic) information, such as text, numbers, images, audio, video, or hyperlinked resources. Desktop virtual environment (VE) applications present similar information design and layout challenges as immersive VEs, but, in addition, they may also be integrated with external windows or frames commonly used in desktop interfaces. This paper enumerates design approaches for the display of enhancing information both internal and external to the virtual world's render volume. Using standard Web-based software frameworks, we explore a number of implicit and explicit spatial layout methods for the display and linking of abstract information, especially text. Within the VE view, we demonstrate both heads-up-displays (HUDs) and encapsulated scenegraph behaviors we call semantic objects. For desktop displays, which support information display venues external to the scene, we demonstrate the linking and integration of the scene with Web browsers and external visualization applications. Finally, we describe the application of these techniques in the PathSim visualizer, an IRVE interface for the biomedical domain. These design techniques are relevant to instructional and informative interfaces for a wide variety of VE applications. © Springer-Verlag London Limited 2004.

关键词： Desktop virtual environments Information psychophysics Information-rich virtual environments Multiple view architectures Visualization design

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Interfaces for Cloning in Immersive Virtual Environments 10

Interfaces for Cloning in Immersive Virtual Environments

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10th Eurographics Symposium on Virtual Environments, EGVE 2004

作者： Chen, Jian Bowman, Doug A. Lucas, John F. Wingrave, Chadwick A. Depart of Computer Science Center for Human-Computer Interaction Virginia Tech BlacksburgVA United States

ISBN: (纸本)390567310X

Three-dimensional objects in many applications domains, such as architecture and construction, can be extremely complex and can consist of a large number of components. However, many of these complex objects also contain a great deal of repetition. Therefore, cloning techniques, which generate multiple spatially distributed copies of an object to form a repeated pattern, can be used to model these objects more efficiently. Such techniques are important and useful in desktop three-dimensional modeling systems, but we are not aware of any cloning techniques designed for immersive virtual environments (VEs). In this paper, we present an initial effort toward the design and development of such interfaces. We define the design space of the cloning task, and present five novel VE interfaces for cloning, then articulate the design rationale. We have also performed a usability study intended to elicit subjective responses with regard to affordances, feedback, attention, perceived usefulness, ease of use, and ease of learning in these interfaces. The study resulted in four major conclusions. First, slider widgets are better suited for discrete than for continuous numeric input. Second, the attentional requirements of the interface increase with increased degrees-of-freedom associated with widgets. Third, users prefer constrained widget movement, although more degrees-of-freedom allow more efficient parameter setting. Finally, appropriate feedback can reduce the cognitive load. The lessons we learned will influence our continuing design of cloning techniques, and these techniques will ultimately be applied to VE applications for design, construction, and prototyping. © The Eurographics Association 2004.

关键词： Virtual reality

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CrossY: A crossing-based drawing application

CrossY: A crossing-based drawing application

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UIST: Proceedings of the Annual ACM Symposium on User Interface Software and Technology

作者： Apitz, Georg Guimbretiére, François Department of Computer Science Human-Computer Interaction Lab University of Maryland College Park MD 20742

We introduce CrossY, a simple drawing application developed as a benchmark to demonstrate the feasibility of goal crossing as the basis for a graphical user interface. We show that crossing is not only as expressive as the current point-and-click interface, but also offers more flexibility in interaction design. In particular, crossing encourages the fluid composition of commands which supports the development of more fluid interfaces. While crossing was previously identified as a potential substitute for the classic point-and-click interaction, this work is the first to report on the practical aspects of implementing an interface based on goal crossing as the fundamental building block. Copyright © 2004 ACM.

关键词： Drawing (graphics)

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