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IEEE Annual Conference on Decision and control

作者： Z. Szabo Zs. Biro P. Gaspar J. Bokor Computer and Automation Research Institute Hungarian Academy of Sciences Hungary Computer and Automation Research Institute Hungarian Academy of Sciences Hungary MTA-BME Control Engineering Research Group

ISBN: (纸本)9781467357159

The Elimination lemma provides analysis conditions that constitute a fundamental tool in obtaining state space solutions of robust control design problems. Using operator theoretical concepts, the paper provides a derivation of the Elimination lemma based on a contractive extension principle and to give a Krein space geometric interpretation of the result. In this way the statement of the lemma is related to general techniques, like interpolation and commutant lifting theory. This result is considered to be an initial step in the control relevant formulation of the lemma in an infinite dimensional setting.

关键词： Lemma design problems Interpolation derivation

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Quadratic separators in the input-output setting

Quadratic separators in the input-output setting

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IEEE Annual Conference on Decision and control

作者： Z. Szabo Zs. Biro J. Bokor Computer and Automation Research Institute Hungarian Academy of Sciences Hungary Computer and Automation Research Institute Hungarian Academy of Sciences Hungary MTA-BME Control Engineering Research Group

ISBN: (纸本)9781467357159

The paper provides a formulation of the quadratic separator result in a fairly general input-output operator framework and it focuses on the specific points that are different compared to the usual finite dimensional formulations. The major contribution of the paper is to emphasize the role of the causality in obtaining the stability result having a quadratic separator and the fact that the plant and the boundedness constant in the formulation of the well-posedness condition determine the robust stability domain associated to the given plant, i.e., the set of those systems {κ} that stabilizes the given plant and produce the given "disturbance rejection" level γ. Concerning the causality issue the necessity of the homotopy argument in the IQC results is also explained and its relation with a general result concerning nest algebras is pointed out.

关键词： Separators INPUT-OUTPUT Quadratic

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A study of the joint decision between spatial intelligence and agent intelligence based on multi-source information

A study of the joint decision between spatial intelligence a...

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2013 IEEE International Conference on Robotics and Biomimetics, ROBIO 2013

作者： Li, Wenyu Li, Qi Duan, Feng Tan, Jeffrey Too Chuan Yuan, Jing Zhang, Jin College of Computer and Control Engineering Nankai University No. 94 Weijin Road Tianjin 300071 China Technology Center of Great Wall Motor Company Automotive Engineering Technology Research Center of Hebei Baoding City Hebei Province 071000 China Nankai University Jiangnan Institute of Modern Industry China Institute of Industrial Science University of Tokyo Japan

ISBN: (纸本)9781479927449

This paper proposes a joint decision approach of intelligence fusion based on two kinds of intelligence, which is used in the domestic indoor environment for the planar mobile robot reaching the destination avoiding the obstacles. Spatial intelligence and agent intelligence provide control decisions for fusing based on the multi-source information. In this work, ceiling cameras observe the objects' information on the ground for spatial intelligence to stitch and analyze the occupancy grid map. Infrared sensor modules detect the obstacles at the front of the robot as agent intelligence. Fusion intelligence system decides the final control strategy based on the spatial intelligence and agent intelligence in order to reach the destination point in the indoor environment. The experimental results show that the method is feasible and the fusion intelligence behaves better than the single intelligence, which verifies the possibility and excellence of utilizing the intelligence fusion for robot action in the domestic indoor environment. © 2013 IEEE.

关键词： Infrared detectors

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Developing best practices for an undergraduate STEM summer research program in a government institution through a higher education partnership

Developing best practices for an undergraduate STEM summer r...

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120th ASEE Annual Conference and Exposition

作者： Drennan, Jessica Lanzerotti, Mary Y. Varga, Maggie Langley, Derrick Cahill, Diana Lynn Centers for Disease Control United States Department of Electrical and Computer Engineering Air Force Institute of Technology Dayton United States Southwestern Ohio Council for Higher Education United States OH United States Air Force Institute of Technology Wright-Patterson Air Force Base United States

This paper introduces a novel and unique paradigm to upgrade a long-standing summer research program at a government institution to include components that are now standard at civilian programs, such as National Science Foundation (NSF) Research Experiences for Undergraduates (REU) programs. Critical to the success of this new paradigm is a campuscommunity partnership. This partnership makes it possible for the first time to assess the summer program at the government institution due to government regulations. The AFIT Summer Research Program hosts approximately 50 student contractors each summer;making the program four to five times larger than a typical NSF REU program, and over 10% are female. All students who participate in the AFIT Summer Research Program are required to be U.S. citizens, and are employed under a contractor through the Southwestern Ohio Council for Higher Education (SOCHE). SOCHE has employed nearly 1,000 STEM students over the past 25 years in both summer programs and year-long programs. During this time, a formal assessment tool was not distributed to students to measure the impact of the research experience on student learning because federal regulations [AFI38-501] do not permit Air Force employees at AFIT to legally survey the students since the students work in contractor status (Air Force employees are not legally permitted to survey contractors in any form;neither paper surveys or email surveys are permitted). Due to AFIT policies and procedures surrounding contractors, the AFIT Summer Research Program lacks components of standard comparable NSF-funded REU programs summer research programs at other institutions. These regulations include not being legally permitted to buy refreshments for informal student cohort meetings, not having a dedicated program coordinator, not offering group meetings to discuss resumes, careers, graduate school, or offer a poster conference. While it is typical at other NSF-funded REU programs to have a program

关键词： Students

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Scheduling of composite bridge components transportation in Just In Time system

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IFAC Proceedings Volumes 2013年第9期46卷 2087-2091页

作者： Wojciech Bozdotejko Zdzisław Hejducki Mariusz Uchroński Mieczysław Wodecki Institute of Computer Engineering Control and Robotics Wrocław University of Technology Poland Institute of Construction Wrocław University of Technology Poland Wrocław Centre for Networking and Supercomputing Poland Institute of Computer Science University of Wrocław Poland

This paper presents a mathematical model, the theoretical basis and an outline of a computer module system supporting scheduling of transportation and assembly of composite beam bridge structures implemented in the just in time system (called JIT for short). In the optimization procedures there were used algorithms based on the tabu search method.

关键词： construction project scheduling just in time (JIT) tabu search algorithm

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Reducing communication and actuation in distributed control systems

Reducing communication and actuation in distributed control ...

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IEEE Annual Conference on Decision and control

作者： M. Guinaldo D. Lehmann J. Sanchez S. Dormido K. H. Johansson Department of Computer Science and Automatic Control at UNED Spain School of Electrical Engineering Royal Institute of Technology (KTH) Sweden

ISBN: (纸本)9781467357159

This paper addresses the problem of reducing the number of transmissions and control updates in a distributed control network of interconnected linear systems. Each node in the network decides when to transmit its state through the network and when to update the control law. Both decisions are event-driven and based on local information. It is shown that the stability of the system is preserved and the state of the system converges to a small region around the origin, whose size depends on the parameters of the transmission and control update trigger functions. A strictly positive lower bound for the inter-event times is derived. The results are illustrated through simulations showing the effectiveness of the proposed approach.

关键词： Distributed control systems control law local information. System stability control systems Strictly positive Communication Research even-driven program decentralised control

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Correct-by-construction distributed control for multi-vehicle transport systems

Correct-by-construction distributed control for multi-vehicl...

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IEEE International Conference on Automation Science and engineering (CASE)

作者： Elzbieta Roszkowska Ida Goral Institute of Computer Engineering Control and Robotics Wroclaw University of Technology Poland Department of Electronics Wroclaw University of Technology Poland

In this work we deal with a system of autonomous mobile vehicles with limited communication range and consider the problem of the formally correct distributed control, i.e., the design of the local control for each particular agent so that it ensures globally correct behavior of the system. A particular problem is the fact that the knowledge about the system state possessed by the agents is partial and never accurate, as during the time of information acquisition (by querying other agents) the state of the agents can change. The paper capitalizes on the results of [1] and contributes with: 1) further development of the theoretical idea toward the distributed supervisory control and the concept of robustness, 2) application of the results in the design of a transport agent, and 3) development of a demonstrator, i.e., a computer application that enables the user to specify a considered transport system and its tasks, creates a virtual environment, where each particular vehicle is represented by a particular software agent implementing the control model of (2), and allows observation of the agents concurrent operation and quantitative assessment of the system performance.

关键词： Resource management Vehicles Computational modeling Safety Robustness Protocols Supervisory control

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Experiments with multifractal analysis for fabric wrinkledness assessment

Experiments with multifractal analysis for fabric wrinkledne...

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International Conference on Computational Cybernetics (ICCC)

作者： Zoltán Fazekas Ştefan Ţalu László Szalay Institute for Computer Science and Control Systems and Control Laboratory Budapest Hungary Faculty of Mechanical Engineering Technical University of Cluj-Napoca Cluj-Napoca Romania INNOVATEXT Textile Engineering Testing Institute Co. Budapest Hungary

Objective assessment of fabric wrinkledness using multifractal methodology is addressed in the paper. As a first experiment with this methodology in this application field, AATCC standard durable press rating replicas, which are used by textile experts worldwide, were photographed and then segmented using common image processing methods. The resulting skeleton images were then analyzed using the multifractal methodology.

关键词： Fractals Fabrics Presses Standards Image segmentation Correlation

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Study on mechanisms of secure data aggregation based on weighted fitting analysis

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Ruan Jian Xue Bao/Journal of Software 2013年第SUPPL.1期24卷 108-116页

作者： Li, Ping Yang, Wu Xie, Jin-Yang Zhu, Hong-Song Zhang, Yong-Guang Li, Xiao-Feng School of Computer and Telecommunications Changsha University of Science and Technology Changsha 410114 China State Key Laboratory of Information Security Institute of Information Engineering The Chinese Academy of Sciences Beijing 100093 China Software Development Center Beijing Institute of Control Engineering Beijing 100190 China

Cryptographic approaches are vulnerable to impersonation attacks when nodes become compromised. Meanwhile, trust-based judgment and confirmation of cluster heads in WSN imposes higher communication cost. Trust management and authentication on cluster heads in WSN are essential in research on the mechanisms of secure data aggregation at present. In this paper, an energy attenuation model is adopted to describe event sensing in a kind of WSNs. Approximate evaluation on distance between occurring event and nodes within a cluster is achieved in case the location of the event is not known. Distribution properties of data points with clustering characteristics based on fitting curve construction are theoretically analyzed. In addition, the mechanism on trust authentication on cluster heads is also refined. Experimental results show that the proposed mechanism has much better performance on fitting accuracy and malicious CH recognition than previous works. © 2013 ISCAS.

关键词： Authentication

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Undo the codebook bias by linear transformation for visual applications 13

Undo the codebook bias by linear transformation for visual a...

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21st ACM International Conference on Multimedia, MM 2013

作者： Zhang, Chunjie Zhang, Yifan Wang, Shuhui Pang, Junbiao Liang, Chao Huang, Qingming Tian, Qi School of Computer and Control Engineering University of Chinese Academy of Sciences 100049 Beijing China National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing China Key Lab of Intell. Info. Process Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China College of Computer Science and Technology Beijing University of Technology 100124 Beijing China School of Computer National Engineering Research Center for Multimedia Software Wuhan University 430072 Wuhan China Department of Computer Sciences University of Texas at San Antonio San Antonio TX 78249 United States

ISBN: (纸本)9781450324045

The bag of visual words model (BoW) and its variants have demonstrate their effectiveness for visual applications and have been widely used by researchers. The BoW model first extracts local features and generates the corresponding codebook, the elements of a codebook are viewed as visual words. The local features within each image are then encoded to get the final histogram representation. However, the codebook is dataset dependent and has to be generated for each image dataset. This costs a lot of computational time and weakens the generalization power of the BoW model. To solve these problems, in this paper, we propose to undo the dataset bias by codebook linear transformation. To represent every points within the local feature space using Euclidean distance, the number of bases should be no less than the space dimensions. Hence, each codebook can be viewed as a linear transformation of these bases. In this way, we can transform the pre-learned codebooks for a new dataset. However, not all of the visual words are equally important for the new dataset, it would be more effective if we can make some selection using sparsity constraints and choose the most discriminative visual words for transformation. We propose an alternative optimization algorithm to jointly search for the optimal linear transformation matrixes and the encoding parameters. Image classification experimental results on several image datasets show the effectiveness of the proposed method. Copyright © 2013 ACM.

关键词： Linear transformations

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