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2008 IEEE International Conference on System of systems engineering, SoSE 2008 2008年

作者： Rubin, Stuart H. Lee, Gordon Pedrycz, Witold Spawar, Shu-Ching Chen Systems Center 53560 Hull Street San Diego CA 92152 United States Dept. of Electrical and Computer Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182 United States Dept of Electrical and Computer Engineering University of Alberta Edmonton AB T6G 2R3 Canada School of Computing and Information Sciences Florida Int'l University 11200 SW 8th St ECS 362 Miami FL 33199 United States

ISBN: (纸本)9781424421732

While much research has been devoted to learning and machine intelligence, the field is still in its infancy. In particular, a technology that will allow for heuristic exploitation of information domain regularities to reduce the time required for knowledge acquisition while concomitantly resulting in an increase in the reliability of the acquired knowledge is still lacking. Unfortunately, contemporary learning mechanisms such as neural network architectures are inherently incapable of such performance. The objective of this paper is to present a new way of looking at learning and machine intelligence which has applicability in many fields such as in robotics, intelligent agents, data fusion, and cooperative sensing. In particular, we propose to construct a new architecture, that is, a transformational architecture for learning, intelligent fusion and transference of knowledge. A System of systems (SoS) approach is used to realize machine intelligence. Random differences are learned by the system, generalized, and made available for subsequent replay in design transformations. Cross-domain symmetries can play a major role in design generation in particular and in the design of SoSs in general. The fundamental theory of randomization is the science, which underpins the practice. This strategy is employed in the design of the Knowledge Amplification by Structural Expert Randomization or KASER system. © 2008 IEEE.

关键词： Expert systems

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A basic study of auction-based planning and scheduling for cell manufacturing

IFIP Advances in Information and Communication Technology

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IFIP Advances in Information and Communication Technology 2008年 257卷 3-10页

作者： Fujii, Susumu Kaihara, Toshiya Sashio, Kentaro Yokose, Hiroko Kurahashi, Masasi Hayashi, Nobuhiro Sophia Univeristy Department of Mechanical Engineering 7-1 Kioi-cho Chiyoda-ku Tokyo102-8554 Japan Kobe University Dept. of Computer and Systems Engineering 1-1 Rokkodai Nada Kobe657-8501 Japan Omron Corporation Industrial Automation Company Production Management and System Engineering Group 2-2-1 Nishikusatsu Kusatsu525-0035 Japan

ISBN: (纸本)9780387772486

Cell manufacturing is widely introduced to cope with the dynamically changing market demands. This study considers a scheduling method for a cell assembly system for the products that are characterized by the type and specification. A major set up is required at a cell for the change of types and a minor one for the change of specification within the same types. The scheduling will be made in three folds. Firstly, the scheduling for the orders with due dates of the day is made before the processing of the day starts. If cells have slack times for the production of the orders of the day, express orders to be completed within the day will be accepted in a prespecified time period or until no cells become available for the production. If slack times still exist, advanced production of orders with future due dates will be considered. Auction-based algorithms are proposed for the scheduling and their effectiveness is investigated by simulation studies. © 2008, IFIP International Federation for Information Processing. All rights reserved.

关键词： Scheduling

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Multi-Scale Distributed Port-Hamiltonian Representation of Ionic Polymer-Metal Composite

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IFAC Proceedings Volumes 2008年第2期41卷 2300-2305页

作者： Gou Nishida Kentaro Takagi Bernhard Maschke Zhi-wei Luo RIKEN(The Institute of Physical and Chemical Research) Bio-Mimetic Control Research Center Environment Adaptive Robotic Systems Lab. 2271-130 Anagahora Shimoshidami Moriyama-ku Nagoya Aichi 463-0003 Japan Dept. of Mechanical Science and Engineering Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 JAPAN Université Claude Bernard Lyon-1 CPE Lyon - Bâtiment 308 G UCB Lyon 1 - UFR Génie Electrique et des Procédés - CNRS UMR 5007 Laboratoire d'Automatique et de Génie des Procédés 43 bd du 11 Novembre 1918 F-69622 Villeurbanne cedex France Department of Computer and Systems Engineering Kobe University 1-1 Rokkodai Nada-ku Kobe Hyogo 657-8501 JAPAN / RIKEN BMC

This paper shows that one of soft actuators, Ionic Polymer-Metal Composite (IPMC) can be modeled in terms of distributed port-Hamiltonian systems with multi-scale. The physical structure of IPMC consists of three parts. The first part is an electric double layer at the interface between the polymer and the metal electrodes. The frequency response of the polymer-metal interface shows a fractal degree of gain slope. Then we adopt a black-box circuit model to this part and give considerations for distributed impedance parameters. The second part is an electrostress diffusion coupling model with bending and relaxation dynamics. This part is represented by an electro-osmosis, which is a water transport by an electric field, and a streaming potential, which is an electric field created by a water transport. We discuss the relationship of stress and bending moment induced by swelling. The third part is a mechanical system modeled as a flexible beam with large deformations. The representation has the capability extracting the control structure based on passivity from distributed parameter systems possessing a complex behavior.

关键词： Modeling Design methodologies

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Path planning of free-floating robot in cartesian space using direct kinematics

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International Journal of Advanced Robotic systems 2007年第1期4卷 17-26页

作者： Xu, Wenfu Liang, Bin Li, Cheng Xu, Yangsheng Qiang, Wenyi Dept. of Control Science and Engineering Harbin Institute of Technology Harbin China Dept. of Automation and Computer-Aided Engineering Chinese University of Hong Kong Hong Kong Hong Kong

Dynamic singularities make it difficult to plan the Cartesian path of free-floating robot. In order to avoid its effect, the direct kinematic equations are used for path planning in the paper. Here, the joint position, rate and acceleration are bounded. Firstly, the joint trajectories are parameterized by polynomial or sinusoidal functions. And the two parametric functions are compared in details. It is the first contribution of the paper that polynomial functions can be used when the joint angles are limited (In the similar work of other researchers, only sinusoidla functions could be used). Secondly, the joint functions are normalized and the system of equations about the parameters is established by integrating the differential kinematics equations. Normalization is another contribution of the paper. After normalization, the boundary of the parameters is determined beforehand, and the general criterion to assign the initial guess of the unknown parameters is supplied. The criterion is independent on the planning conditions such as the total time tf. Finally, the parametes are solved by the iterative Newtonian method. Modification of tf may not result in the recalculation of the parameters. Simulation results verify the path planning method.

关键词： Mobile robots

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Air interfaces for future-generation cellular wireless systems

Air interfaces for future-generation cellular wireless syste...

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CNSR 2007: 5th Annual Conference on Communication Networks and Services Research

作者： Falconer, David Dept. of Systems and Computer Engineering Carleton University Ottawa Canada

ISBN: (纸本)076952835X

In response to increasing demands for true multimedia telecommunications services anywhere any time there are concerted efforts worldwide towards the definition and development of "future-generation" wireless systems which may be expected to enter service within the next ten years. These will differ from current and near-future systems such as second- and third-generation cellular, WIFI, WiMAX and 3G long term evolution systems, in several important aspects: The radio system will configure itself and adapt to a users' needs, the capabilities of the user's terminal, and to the environment scenario. A "user" may be a person or a device, such as a sensor. The system can easily adapt to local hot spot, metropolitan area or wide area scenarios, static or fast-moving. The system will support high user densities and a very wide range of user bit rates - Kilobits per second to hundreds of Megabits per second. All this will be achieved with efficient spectrum usage and sharing, low cost, and acceptably low terminal power consumption. Such future wireless systems (sometimes called "fourth generation" (4G), sometimes called "beyond third generation" (B3G)), capable of transporting very high bit rates In non-ideal radio propagation environments, must be robust to severe frequency selective multipath. Further requirements include moderate terminal and base station hardware costs, high spectral efficiency, and scalability of the cost of terminals with respect to their maximum bit rate capabilities. Reconfigurable air Interfaces, based on frequency domain transmission and reception methods, best meet these requirements, by adaptively selecting the uplink and downlink modulation and multiple access scheme that is most appropriate for the channel, Interference, traffic and cost constraints. In this talk we discuss a generalized frequency domain-based approach to next-generation wireless air interfaces, presenting examples and research results, including channel estimation and power

关键词： Wireless networks

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On taxis for control and its qualitative solution on mobile robots

On taxis for control and its qualitative solution on mobile ...

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作者： Rañó, Iñaki Computer Sciences and Systems Engineering Dept. University of Zaragoza Spain

ISBN: (纸本)9783902661654

Animals show a great ability to move on real world. Taxis is a motion control technique used by simple animals. In this paper mathematical equations are derived from a taxis model for non-holonomous vehicles. A qualitative technique is applied to analyse the solutions of the nonlinear derived motion equations. To validate the model and qualitative analysis several simulations are performed.

关键词： Animals

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ShapeShop: Sketch-based solid modeling with BlobTrees

ShapeShop: Sketch-based solid modeling with BlobTrees

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ACM SIGGRAPH 2007 - International Conference on computer Graphics and Interactive Techniques

作者： Schmidt, R. Wyvill, B. Sousa, M.C. Jorge, J.A. Dept. Computer Science University of Calgary Canada Dept. Information Systems and Computer Engineering TU Lisbon Portugal

Various systems have explored the idea of inferring 3D models from sketched 2D outlines. In all of these systems the underlying modeling methodology limits the complexity of models that can be created interactively. The ShapeShop sketch-based modeling system utilizes Hierarchical Implicit Volume Models (BlobTrees) as an underlying shape representation. The BlobTree framework supports interactive creation of complex, detailed solid models with arbitrary topology. A new technique is described for inflating 2D contours into rounded three-dimensional implicit volumes. Sketch-based modeling operations are defined that combine these basic shapes using standard blending and CSG operators. Since the underlying volume hierarchy is by definition a construction history, individual sketched components can be non-linearly edited and removed. For example, holes can be interactively dragged through a shape. ShapeShop also provides 2D drawing assistance using a new curve-sketching system based on variational contours. A wide range of models can be sketched with ShapeShop, from cartoon-like characters to detailed mechanical parts. Examples are shown which demonstrate significantly higher model complexity than existing systems. © The Eurographics Association 2005.

关键词： Blending

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Sampling point-set implicits 4

Sampling point-set implicits

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Point-Based Graphics 2007, PBG 2007

作者： Proença, J. Jorge, J.A. Sousa, M.C. Dept. Information Systems and Computer Engineering TU Lisbon Portugal Dept. Computer Science University of Calgary Canada

ISBN: (纸本)9783905673517

We present a novel approach for point-set implicit surface sampling that is able to rapidly distribute particles over the surface of 3D objects. Our methods benefit from the inner structure of a MPU implicit to obtain a near-optimal initial distribution, with higher densities in areas of higher complexity. The adequate number of particles to effectively sample the surface is determined almost automatically and in accordance to the surface characteristics. We also use the MPU information to obtain local surface complexity heuristics that are used in the simulation stage of the particle system. Shape modeling operations are directly supported and the redistribution of particles is very fast for local edits. We present performance results that show that our system is faster than other state-of-the art approaches for the same number of points. © The Eurographics Association 2007.

关键词： Geometry

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Grover quantum searching algorithm based on weighted targets

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Journal of systems engineering and Electronics 2008年第2期000卷

作者： Li Panchi Li Shiyong Li Panchi (Dept. Of Control Science and Engineering Harbin Inst. Of Technology Harbin 150001 P. R. China Dept. Of Computer Science and Engineering Daqing Petroleum Inst. Daqing 163318 P. R. China) Li Shiyong (Dept. of Control Science and Engineering Harbin Inst. of Technology Harbin 150001 P. R. China)

The current Grover quantum searching algorithm cannot identify the difference in importance of the search targets when it is applied to an unsorted quantum database, and the probability for each search target is equal. To solve this problem, a Grover searching algorithm based on weighted targets is proposed. First, each target is endowed a weight coefficient according to its importance. Applying these different weight coefficients, the targets are represented as quantum superposition states. Second, the novel Grover searching algorithm based on the quantum superposition of the weighted targets is constructed. Using this algorithm, the probability of getting each target can be approximated to the corresponding weight coefficient, which shows the flexibility of this ***, the validity of the algorithm is proved by a simple searching example.

关键词： Grover algorithm targets weighting quantum searching quantum computing.

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Reducing the gap between fuzzy and nonlinear control

Reducing the gap between fuzzy and nonlinear control

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作者： Sala, Antonio Dept. Systems Engineering and Control Universidad Politécnica de Valencia Valencia Spain

ISBN: (纸本)9783902661333

LMI formulations for fuzzy control became the tool of choice in the 1990s. Many nonlinear systems can be modelled as fuzzy systems (sector-nonlinearity), so fuzzy control may be considered as a technique for nonlinear control. Fruitful results have been obtained, but some sources of conservativeness remain when compared to other nonlinear approaches. This paper outlines such conservativeness issues (shadows), and discusses some ideas (lights) on overcoming them. Copyright © 2007 IFAC.

关键词： Fuzzy control

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