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A Hierarchical Image Annotation Method Based on SVM and Semi-supervised EM

Acta Automatica Sinica 2010年第7期36卷 960-967页

作者： Yan-Yu Gao Yi-Xin YIN Takashi UOZUMI School of Information Engineering University of Science and Technology Beijing Beijing 100083 P. R. China Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing Beijing 100083 P. R. China Department of Computer Science and Systems Engineering Muroran Institute of Technology Muroran 050-8585 Japan

Automatic image annotation, which aims at automatically identifying and then assigning semantic keywords to the meaningful objects in a digital image, is not a very difficult task for human but has been regarded as a difficult and challenging problem to machines. In this paper, we present a hierarchical annotation scheme considering that generally human s visual identification to a scenery object is a rough-to-fine hierarchical process. First, the input image is segmented into multiple regions and each segmented region is roughly labeled with a general keyword using the multi-classification support vector machine. Since the results of rough annotation affect fine annotation directly, we construct the statistical contextual relationship to revise the improper labels and improve the accuracy of rough annotation. To obtain reasonable fine annotation for those roughly classified regions, we propose an active semi-supervised expectation-maximization algorithm, which can not only find the representative pattern of each fine class but also classify the roughly labeled regions into corresponded fine classes. Finally, the contextual relationship is applied again to revise the improper fine labels. To illustrate the effectiveness of the presented approaches, a prototype image annotation system is developed, the preliminary results of which showed that the hierarchical annotation scheme is effective.

关键词： Hierarchical image annotation support vector machine (SVM) semi-supervised expectation-maximization coexistence relative location relationship

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Net-in-Net: Interaction Modeling for Smart Community Cyber-Physical System

Net-in-Net: Interaction Modeling for Smart Community Cyber-P...

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Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing, UIC-ATC

作者： Longhua Ma Jun Yao Ming Xu Tengkai Yuan Meng Shao School of Aeronautics and Astronautics University of Zhejiang Hangzhou China Department of Control Science and Engineering University of Zhejiang Hangzhou China Computer Centre Hangzhou First People's Hospital Hangzhou China

Cyber-physical system (CPS) integrates physics with Internet to provide a timely, confidential and efficient interaction of physical appliances with people. However, as a CPS Application, Smart Home still has difficulties in building a centralized interaction for remote monitoring. The paper presents the interaction model of Smart Community Cyber-Physical System (SCCPS) with the name Net-in-Net. The proposed model interaction is organized as a Wireless Sensor Network with Zigbee and GPRS technologies. Furthermore, B/S and C/S mixed mode is used as the architecture of remote interaction. After that a Cyber Protocol of application layer is proposed. Such model is supposed to provide a smart home interaction of high Security, reliability, stability and timeliness.

关键词： Conferences

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Design and Implementation of a Wireless Sensor Network for Smart Homes

Design and Implementation of a Wireless Sensor Network for S...

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Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing, UIC-ATC

作者： Ming Xu Longhua Ma Feng Xia Tengkai Yuan Jixin Qian Meng Shao Department of Control Science and Engineering University of Zhejiang Hangzhou China School of Software Dalian University of Technology Dalian China Computer Centre Hangzhou First people's Hospital Hangzhou China

Wireless sensor networks (WSNs) have become indispensable to the realization of smart homes. The objective of this paper is to develop such a WSN that can be used to construct smart home systems. The focus is on the design and implementation of the wireless sensor node and the coordinator based on ZigBee technology. A monitoring system is built by taking advantage of the GPRS network. To support multi-hop communications, an improved routing algorithm based on the Dijkstra algorithm is presented. Preliminary simulations have been conducted to evaluate the performance of the algorithm.

关键词： Conferences

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Virtual production control system

Virtual production control system

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IEEE International Conference on Automation science and engineering (CASE)

作者： Haw-Ching Yang Ying-Liang Chen Min-Hsiung Hung Fan-Tien Cheng Institute of System Information and Control National Kaohsiung First University of Science and Technology Kaohsiung Taiwan Institute of Manufacturing Engineering National Cheng Kung University Tainan Taiwan Department of Computer Science Chinese Cultural University Taipei Taiwan

ISBN: (纸本)9781424454471

This work develops a novel virtual production control system (VPCS), which is allocated on a manufacturer side to adjust production pace of a supplier using a short-term demand plan for reducing inventory level. In addition to remotely monitoring production progress of a supplier, the proposed VPCS allows manufacturers to pre-schedule the latest outputs using an integer programming model, to simulate the short-term plan by a stochastic colored timed Petri Nets, and to adjust the production pace of the supplier via the plan. An industrial case study shows that the supplier inventory was reduced by 13.8% over that of the real inventory level with an order-fill rate exceeding 99.6% using the proposed VPCS.

关键词： Materials Programming Predictive models Data preprocessing Capacity planning

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Asymptotic suppression of a class of discrete-time hyperchaotic systems based on fuzzy control method

Asymptotic suppression of a class of discrete-time hyperchao...

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Chinese control Conference (CCC)

作者： Zhidan Wu Ying Pan Wei Deng Fusheng Song Fundamental Teaching Department of Computer & Mathematics Shenyang Normal University Shenyang P. R. China School of Mathematics & Computer Science Harbin University Harbin P. R. China Department of Automatic Control Engineering Shenyang Institute of Engineering Shenyang P. R. China

The chaotic suppression problem for a class of typical discrete-time hyperchaotic systems is investigated in this paper. A T-S fuzzy model-based control method is employed to eliminate hyperchaos in the considered discrete-time system. Firstly, the T-S fuzzy representation for the discrete-time hyperchaotic system is presented. Then, a state feedback controller is designed based on the parallel distributed compensation technique. According to the linear matrix inequality method and exact linearization technique, two kinds of approaches are given to solve the controller gain matrices. Finally, the validity of the proposed chaotic suppression method is illustrated by a numerical example.

关键词： Chaos Linear matrix inequalities control systems Electronic mail Numerical models Synchronization Adaptive systems

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Sensitivity function of LTI fractional order dynamic systems with respect to the orders

Sensitivity function of LTI fractional order dynamic systems...

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American control Conference (ACC)

作者： Yan Li Dingyü Dingyü Xue YangQuan Chen Center of Self-Organizing & Intelligent Systems CSOIS Electrical an Computer Engineering Department Utah State University Logan UT USA School of Control Science and Engineering Shandong University Jinan Shandong China Institute of Robotics and Artificial Intelligent School of Information Science and Engineering Northeastern University Shenyang China

Many real natural or man-made dynamic systems can be better characterized using a fractional order dynamic model. Since in such a case the order assumes a non-integer value, it is of interest to consider the effect of small perturbation around the nominal value. It is of practical importance to analyze the influence of the order variations on the system behavior. This paper establishes an analytical method for the analysis of the sensitivity function of LTI fractional order dynamic systems with respect to the orders. The continuous dependent condition of the orders of fractional Green's function is derived, which is proved as a necessary and sufficient condition. The singularity of fractional Green's functions is discussed. Several examples are included for illustration.

关键词： Green's function methods Lyapunov method Intelligent robots Sufficient conditions Artificial intelligence Transfer functions Fractional calculus Integral equations Partial differential equations H infinity control

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Research and Implementation of the Security Method Based on WIA-PA Standard

Research and Implementation of the Security Method Based on ...

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International Conference on Electrical and control engineering (ICECE)

作者： Wei Min Xuan Zhang Wang Ping Keecheon Kim Younghan Kim Department of Computer Science and Engineering Konkuk University Seoul South Korea Key Laboratory of Network control & Intelligent Instrument Chongqing University of Posts and Telecommunications Chongqing China School of Electronic Engineering Soongsil University Seoul South Korea

Wireless Industrial communications is emerging technology after the Fieldbus in industrial field. Since the industrial control application is needed in wireless industrial technologies, WIA-PA standard is defining the protocol suite, system management, gateway, and security for low-data-rate wireless connectivity with fixed, portable, and moving devices supporting limited power consumption requirements. This paper presents the security architecture and security protocol based on WIA-PA. Furthermore, we design and implement the security communication services. Finally, the test results illustrate that these security measures may enhance the security reliability of the WIA-PA network communication.

关键词： Cryptography Protocols Wireless networks Microwave integrated circuits Payloads

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Scalable co-scheduling strategies in distributed computing

Scalable co-scheduling strategies in distributed computing

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ACS/IEEE International Conference on computer Systems and Applications

作者： Victor V. Toporkov Dmitry Yemelyanov Anna Toporkova Alexey Tselishchev Computer Science Department Moscow Power Engineering Institute Moscow Russia Automation and Artificial Intelligence in Control Department Moscow State Institute of Electronics and Mathematics Moscow Russia European Organization for Nuclear Research (CERN) Geneva Switzerland

In this paper, we present an approach to scalable co-scheduling in distributed computing for complex sets of interrelated tasks (jobs). The scalability means that schedules are formed for job models with various levels of task granularity, data replication policies, and the processor resource and memory can be upgraded. The necessity of guaranteed job execution at the required quality of service causes taking into account the distributed environment dynamics, namely, changes in the number of jobs for servicing, volumes of computations, possible failures of processor nodes, etc. As a consequence, in the general case, a set of versions of scheduling, or a strategy, is required instead of a single version. We propose a scalable model of scheduling based on multicriteria strategies. The choice of the specific schedule depends on the load level of the resource dynamics and is formed as a resource query which is sent to a local batch-job management system.

关键词： Processor scheduling Schedules Dynamic scheduling Resource management Computational modeling Nonhomogeneous media

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High performance vision tracking system for mobile robot using sensor data fusion with Kalman filter

High performance vision tracking system for mobile robot usi...

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2010 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Jaehong Park Wonsang Hwang Hyun-il Kwon Jong-hyeon Kim Chang-hun Lee M. Latif Anjum Kwang-soo Kim Dong-il Cho Automation and Systems Research Institute (ASRI) and School of Electrical Engineering and Computer Science Inter-University Semiconductor Research Center Seoul South Korea South Korea Department of Control and Instrumentation Engineering Hanbat National University Daejeon South Korea

This paper introduces a high performance vision tracking system for mobile robot using sensor data fusion. For mobile robots, it is difficult to collect continuous vision information due to robot's motion. To solve this problem, the proposed vision tracking system estimates the robot's position relative to a target and rotates the camera towards the target. This concept is derived from the human eye reflex mechanism, known as the Vestibulo-Ocular Reflex (VOR), for compensating the head motion. This concept for tracking the target results in much higher performance levels, when compared with the conventional method that rotates the camera using only vision information. The proposed system do not require heavy computing loads to process image data and can track the target continuously even during vision occlusion. The robot motion information is estimated using data from accelerometer, gyroscope, and encoders. This multi-sensor data fusion is achieved using Kalman filter. The proposed vision tracking system is implemented on a two-wheeled robot. The experimental results show that the proposed system achieves excellent tracking and recognition performance in various motion scenarios, including scenarios where camera is temporarily blocked from the target.

关键词： Robot sensing systems Target tracking Machine vision Kalman filters Cameras

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Use of accelerometers for material inner defect detection

Use of accelerometers for material inner defect detection

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International Conference on Applied Electronics, AE

作者： Ondrej Krejcar Robert Frischer Department of Measurement and Control Center of Applied Cybernetics Faculty of Electrical Engineering and Computer Science VSB-Technical University of Ostrava Ostrava Czech Republic Department of Automation and Computing in Metallurgy VSB-Technical University of Ostrava Ostrava Czech Republic

This paper deals with a possibility of non-destructive diagnostics of solid objects by software analysis of vibration spectrum by accelerometers. By a use of MATLAB platform, a processing and information evaluation from accelerometer is possible. Accelerometer is placed on the measured object. The analog signal needs to be digitized by a special I/O device to be processed offline with FFT (Fast Fourier Transformation). The power spectrum is then examined by developed evaluating procedures.

关键词： Accelerometers Vibrations Software Conferences Distortion measurement Converters Unified modeling language

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