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International Conference on Network-Based Information systems (NBIS)

作者： Hiroaki Nishino Ryotaro Goto Tsuneo Kagawa Kouichi Utsumiya Department of Computer Science and Intelligent Systems Oita University Oita Japan Graduate School of Engineering Oita University Oita Japan

Various information displays are becoming available for implementing new kinds of human computer interaction (HCI) methods. Among many types and models, touch panel displays have been used in wide range of applications and are proven to be a useful infrastructure for creating intuitive HCI. In spite of their popularity, there are some weak points. The most serious drawback is their hardness to operate especially for the weak in information technology such as elderly and blind users. A tactile feedback function has a potential ability for enabling them to make full use of the devices. We propose an approach for effectively designing user-friendly HCI based on the tactile feedback. We exemplify our approach through the design and development of a few practical applications, an electronic voting system and a disaster information exploration system. The applications are targeted at supporting the weak, but the touch interactions quite are useful for general public for improving the stability and the degree of satisfaction in operations. These systems use a touch panel haptic display for helping the users to operate with straightforward touch sensations. It allows them to easily confirm, select, and activate their desired functions. We also conducted some evaluations to verify the effectiveness of the proposed framework.

关键词： Tactile sensors Graphical user interfaces Electronic voting systems Vibrations Mobile communication Force feedback

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Design and development of autonomous driving vehicle

Design and development of autonomous driving vehicle

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International Symposium on systems and Control in Aerospace and Astronautics (ISSCAA)

作者： Meng Gao Kezhong He Huaping Liu Fuchun Sun Shijiazhuang Railway Institute Shijiazhuang Hebei China Department of Computer Science and Technology State Key Laboratory of Intelligent Technology and Systems State Key Laboratory of Intelligent Technology and Systems Tsinghua University China

In this paper, a new type of autonomous vehicle is developed. This vehicle consists of three sets of control systems to regulate the direction, brake and fuels. The sensing system is a combination of laser radar and camera. The localization system is constructed with GPS device and electronically compass. Currently, three tasks, including lane detection and following, object detection, and obstacle avoidance, has been implemented on this platform. We reported some experimental results.

关键词： Laser radar Mobile robots Vehicles Compass Wheels Cameras

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MULTI-CAMERA POSITIONING FOR AUTOMATED TRACKING systems IN DYNAMIC ENVIRONMENTS

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International Journal of Information Acquisition 2010年第3期7卷 225-242页

作者： YI YAO CHUNG-HAO CHEN BESMA ABIDI DAVID PAGE ANDREAS KOSCHAN MONGI ABIDI Visualization and Computer Vision Lab GE Global Research USA Department of Mathematics and Computer Science North Carolina Central University USA Imaging Robotics and Intelligent Systems Lab University of Tennessee Knoxville USA

Most existing camera placement algorithms focus on coverage and/or visibility analysis, which ensures that the object of interest is visible in the camera's field of view (FOV). According to recent literature, handoff safety margin is introduced to sensor planning so that sufficient overlapped FOVs among adjacent cameras are reserved for successful and smooth target transition. In this paper, we investigate the sensor planning problem when considering the dynamic interactions between moving targets and observing cameras. The probability of camera overload is explored to model the aforementioned interactions. The introduction of the probability of camera overload also considers the limitation that a given camera can simultaneously monitor or track a fixed number of targets and incorporates the target's dynamics into sensor planning. The resulting camera placement not only achieves the optimal balance between coverage and handoff success rate but also maintains the optimal balance in environments with various target densities. The proposed camera placement method is compared with a reference algorithm by Erdem and Sclaroff. Consistently improved handoff success rate is illustrated via experiments using typical office floor plans with various target densities.

关键词： Sensor planning visual surveillance multiple camera systems camera handoff

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Online multiple instance learning with no regret

Online multiple instance learning with no regret

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Conference on computer Vision and Pattern Recognition (CVPR)

作者： Mu Li James T. Kwok Bao-Liang Lu Department of Computer Science and Engineering Shanghai Jiaotong University Shanghai China Department of Computer Science and Engineering Hong Kong University of Science and Technology Hong Kong China MOE-Microsoft Key Laboratory for Intelligent Computing and Intelligent Systems Shanghai Jiaotong University Shanghai China

Multiple instance (MI) learning is a recent learning paradigm that is more flexible than standard supervised learning algorithms in the handling of label ambiguity. It has been used in a wide range of applications including image classification, object detection and object tracking. Typically, MI algorithms are trained in a batch setting in which the whole training set has to be available before training starts. However, in applications such as tracking, the classifier needs to be trained continuously as new frames arrive. Motivated by the empirical success of a batch MI algorithm called MILES, we propose in this paper an online MI learning algorithm that has an efficient online update procedure and also performs joint feature selection and classification as MILES. Besides, while existing online MI algorithms lack theoretical properties, we prove that the proposed online algorithm has a (cumulative) regret of O(√T), where T is the number of iterations. In other words, the average regret goes to zero asymptotically and it thus achieves the same performance as the best solution in hindsight. Experiments on a number of MI classification and object tracking data sets demonstrate encouraging results.

关键词： Layout Image reconstruction Semiconductor device modeling Image segmentation Stereo vision Surface reconstruction Surface texture Surface fitting Stereo image processing Rendering (computer graphics)

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A reliability assessment paradigm for automated video tracking systems

A reliability assessment paradigm for automated video tracki...

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2010 20th International Conference on Pattern Recognition, ICPR 2010

作者： Chen, Chung-Hao Yao, Yi Koschan, Andreas Abidi, Mongi Department of Math and Computer Science North Carolina Central University NC 27713 United States Global Research Center General Electric NY 12309 United States Imaging Robotics and Intelligent Systems Lab. University of Tennessee Knoxville TN 37996 United States

ISBN: (纸本)9780769541099

Most existing performance evaluation methods concentrate on defining separate metrics over a wide range of conditions and generating standard benchmarking video sequences for examining the effectiveness of video tracking systems. In other words, these methods attempt to design a robustness margin or factor for the system. These methods are deterministic in which a robustness factor, for example, 2 or 3 times the expected number of subjects to track or the strength of illumination would be required in the design. This often results in overdesign, thus increasing costs, or underdesign causing failure by unanticipated factors. In order to overcome these limitations, we propose in this paper an alternative framework to analyze the physics of the failure process and, through the concept of reliability, determine the time to failure in automated video tracking systems. The benefit of our proposed framework is that we can provide a unified and statistical index to evaluate the performance of automated video tracking system for a task to be performed. At the same time, the uncertainty problem about a failure process, which may be caused by the system's complexity, imprecise measurements of the relevant physical constants and variables, or the indeterminate nature of future events, can be addressed accordingly based on our proposed framework. © 2010 IEEE.

关键词： Benchmarking

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A decision support tool for optimal Levodopa administration in Parkinson's Disease

A decision support tool for optimal Levodopa administration ...

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10th International Conference on Information Technology and Applications in Biomedicine: Emerging Technologies for Patient Specific Healthcare, ITAB 2010

作者： Rigas, George Bougia, Panagiota Baga, Dina Tsipouras, Markos Tzallas, Alexandros Tripoliti, Evanthia Tsouli, Sofia Chondrogiorgi, Maria Konitsiotis, Spiros Fotiadis, Dimitrios I. Unit of Medical Technology and Intelligent Information Systems Dept. of Materials Science and Engineering University of Ioannina GR 451 10 Ioannina Greece Department of Neurology Medical School University of Ioannina Ioannina GR 45 110 Greece Dept. of Computer Science University of Ioannina GR 451 10 Ioannina Greece

ISBN: (纸本)9781424465606

In this work a decision support tool for optimal administration of Levodopa (L-Dopa) in patients with Parkinson's Disease (PD) is presented. The so called Medication Change Proposer (MCP) is part of the PERFORM system, which monitors patient's motion status using a set of wearable sensors, assesses PD symptoms and their severity through dedicated symptoms detection modules (On-Off detection and LevodopaInduced Dyskinesia detection), and proposes treatment plans to alleviate the symptoms. The methodology is based on the analysis of the outputs of the symptoms detection modules, taking into account the uncertainty (confidence) propagated by their respective classification algorithms. The evaluation of our methodology is performed using artificial follow-up data produced by a specially built simulation environment. The obtained results demonstrate that the MCP outputs compare well with the experts' decisions, indicating high performance. © 2010 IEEE.

关键词： Neurodegenerative diseases

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Hardware particle swarm optimization based on the attractive-repulsive scheme for embedded applications

Hardware particle swarm optimization based on the attractive...

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2010 International Conference on Reconfigurable Computing and FPGAs, ReConFig 2010

作者： Muñoz, Daniel M. Llanos, Carlos H. Dos S. Coelho, Leandro Ayala-Rincón, Mauricio Department of Mechanical Engineering Automation and Control Group/GRACO University of Brasilia Brasilia DF Brazil Industrial and Systems Engineering Graduate Program LAS/PPGPES Pontifical Catholic University of Parana Curitiba Parana Brazil Department of Computer Science and Mathematics University of Brasilia Brasilia DF Brazil

ISBN: (纸本)9780769543147

Particle Swarm Optimization (PSO) algorithms have been proposed to solve engineering problems that require to find an optimal point of operation. However, the PSO algorithm suffers from premature convergence and high elapsed time when solving multimodal and large scale engineering problems. This problem becomes an evident drawback for embedded applications in which the microcontrollers often operates at low computational capacity. This paper proposes a hardware implementation of a parallel self-adaptive PSO algorithm based on an attractive-repulsive scheme and using the efficient floating-point arithmetic which performs computations with large dynamic range and high precision. The parallel capabilities of the PSO are exploited by implementing parallel particles directly in hardware in order to decrease the running time. In addition, the attractive-repulsive technique avoids the premature convergence problem by self-adapting the swarm behavior according to its diversity. Synthesis and simulation results for benchmark test problems were performed, demonstrating the correctness of the proposed architectures. Finally, an elapsed time comparison between the hardware and software implementations shows the suitableness of the proposed architecture for embedded applications. © 2010 IEEE.

关键词： Global optimization

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External Coordination Media in Capacity-Constrained Multiagent systems

External Coordination Media in Capacity-Constrained Multiage...

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IEEE WIC ACM International Conference on Web Intelligence (WI)

作者： Thomas Kemmerich Hans Kleine Büning International Graduate School Dynamic Intelligent Systems University of Paderborn Paderborn Germany Department of Computer Science University of Paderborn Paderborn Germany

Our goal is to understand limitations of simplicity of knowledge structures and reasoning processes in Multiagent systems. Therefore, we propose a framework that integrates external storage media and a capacity-constrained Multiagent System. Agents can store knowledge internally and on external storage media located in an environment. In some cases, agents either have to forget or to store knowledge externally due to limited internal memory. We define notions of suitable knowledge and let agents learn in the context of an iterative partitioning task problem. Using basic knowledge structures and a simple k-Nearest-Neighbor approach, we evaluate the role of limited internal memory in conjunction with strategic positioning of storage media and knowledge items. We also investigate dependencies between communication, internal memory size, frequently changing settings, and externally stored items. The results show that externally and strategically stored simple knowledge can support agents' reasoning processes. The approach is robust even in highly dynamic settings with small memory and without inter-agent communication.

关键词： Media Training Multiagent systems Cognition Context Mathematical model Robots

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intelligent Coordinated Control of a Wind Farm and Distributed Smartparks

Intelligent Coordinated Control of a Wind Farm and Distribut...

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Conference Record of the IEEE Industry Applications Society Annual Meeting (IAS)

作者： Pinaki Mitra Ganesh K. Venayagamoorthy Real-Time Power and Intelligent Systems Laboratory Department of Electrical and Computer Engineering Missouri University of Science and Technology Rolla MO USA

Energy storage is generally recommended in presence of an intermittent source like wind farm for a better control over the power generation from the wind turbine with the variation of the wind speed. In this paper, the potential of plug-in electric vehicle parking lot (SmartPark) as an energy storage in a power system with a large wind farm has been investigated. Also, a fuzzy logic based coordination controller of the wind farm and the distributed SmartParks has been proposed in this paper. The fuzzy controller uses the total state-of-charge of the SmartParks and the difference between instantaneous demand and the available wind power generation as the inputs and thereby generates the charging or discharging power commands of the SmartParks and the pitch angle reference for the wind turbine. A 12-bus multimachine power system with a 400 MW wind farm is used as a test system. Six SmartParks are also connected to the same bus where the wind farm is connected. The entire model is developed in Real-Time Digital Simulator (RTDS) for power system. The results demonstrate the action of the coordinated controller to reduce the oscillations in the tie-line power flow with the sudden variations of the wind speed.

关键词： Wind farms Wind power generation Wind speed Niobium Energy storage Inverters Vehicles

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Real-time burst event detection in water distribution systems

Real-time burst event detection in water distribution system...

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9th ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN 2010

作者： Srirangarajan, Seshan Iqbal, Mudasser Allen, Michael Preis, Ami Fu, Cheng Girod, Lewis Wong, Kai-Juan Lim, Hock Beng Whittle, Andrew Intelligent Systems Center Nanyang Technological University Singapore Singapore Singapore-MIT Alliance for Research and Technology Singapore Singapore Computer Science and Artificial Intelligence Laboratory MIT Cambridge MA United States School of Computer Engineering Nanyang Technological University Singapore Singapore Department of Civil and Environmental Engineering MIT Cambridge MA United States

In this paper, we present an overview of a system that we are developing for the continuous monitoring of water distribution systems in Singapore. We discuss the design and implementation of the system that enables re... 详细信息

ISBN: (纸本)9781605589886

关键词： Sensor networks

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