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IEEE WIC ACM International Conference on Web Intelligence (WI)

作者： Omran Al Hammadi Ahmed Al Hebsi M. Jamal Zemerly Jason W.P. Ng Electrical & Computer Engineering Department Khalifa University of Science Technology and Research Sharjah UAE Etisalat BT Innovation Center BT Innovate & Design Abu Dhabi UAE

Indoor guidance is becoming a significant issue with the increasing number of buildings. This paper describes an Android based indoor map guidance system that assists and guides visitors inside public buildings (e.g. schools, shopping malls, airports, museums, exhibition centers). It utilizes NFC (Near Field Communication) technology and QR (Quick Response) Codes, which are low cost, to determine the location as well as to provide navigation within the buildings. Also, it provides a variety of helpful features such as finding destination, calculating shortest path, storing car parking location, giving feedback to building management, entering surveys for restaurants and coffee shops, finding nearest toilet and making donation. In addition, the system is bilingual and available in both English and Arabic versions. The developed system relies on a server that contains its web server, map server and spatial database. For wide accessibility, the whole system is developed using open source and freely-available software. For example, (a) the Android SDK is used to develop the client interface, (b) the Apache server is used for the web server, (c) Google sketch up and Quantum GIS are used to draw the floor plans, (d) Postgre SQL/PostGIS is used for spatial database to store the drawn floor plans, and (e) MapServer (MS4W) is used for map server to retrieve and draw the stored floor plans from the spatial database. Thus far, the developed mobile application has been fully evaluated and validated for use in a smart campus environment, which has been encapsulated in a test case study delineated herein.

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Balanced neighborhood aware clustering technique in Wireless Sensor Networks

Balanced neighborhood aware clustering technique in Wireless...

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International Conference on Power, Control and Embedded Systems (ICPCES)

作者： Shimul Bhowmik Amartya Sen Sanghita Bhattacharjee Belzabar Softwares Design India Private Limited New Delhi India Department of Computer Science Missouri University of Science and Technology Rolla MO USA Department of Computer Science and Engineering National Institute of Technology Durgapur India

Clustering forms the basis of a well structured Wireless Sensor Networks. Formation of efficient clusters leads to longer lifetime of the sensor networks. So we tend to optimize the initial clustering process. In this paper we have proposed Mean neighbor clustering algorithm that evenly distributes the nodes around the clusters and form well balanced clusters in the system. The proposed Mean neighbor clustering protocol uses the local neighborhood information to form balanced clusters in sensor networks. The proposed method is also compared with various existing clustering protocols in sensor networks. Comparison is done based on parameters like cluster number, average cluster, cluster range, circularity and hop distance. Simulations show that our proposed algorithm performs better than other neighborhood aware clustering techniques.

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Modelling and simulation of functional product system availability and support costs

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International Journal of Product Development 2012年第3-4期16卷 304-325页

作者： Lofstrand, Magnus Reed, Sean Karlberg, Magnus Andrews, John Karlsson, Lennart Dunnett, Sarah Division of Computer Aided Design E218K Lulea University of Technology SE-971 87 Lulea Sweden Nottingham Transportation Engineering Centre NTEC University of Nottingham University Park Nottingham NG7 2RD United Kingdom Department of Aeronautical and Automotive Engineering Loughborough University Leicestershire LE11 3TU United Kingdom

Functional Products (FP), total offers or product service systems that comprise of both Hardware (HW) and Support Services (SS) sold as an integrated offering under an availability guarantee are becoming increasing popular in industry. This paper addresses, through modelling and simulation the challenge faced by suppliers in developing an integrated HW and SS design to produce an FP which meets contracted availability. A recently published framework specified how an integrated model hardware and service support system model could be used to obtain functional availability predictions and perform simulation driven functional product development. This paper presents the first example of an integrated functional product model. It uses fault tree, Petri net and discrete event simulation techniques to enable the prediction of functional product availability and support costs. Such predictions are used here to evaluate and compare different service support system designs. © 2012 Inderscience Enterprises Ltd.

关键词： Discrete event simulation

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Implementation of a direct procedure for critical point computations using preconditioned iterative solvers

Implementation of a direct procedure for critical point comp...

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作者： Kouhia, Reijo Tůma, Miroslav Mäkinen, Jari Fedoroff, Alexis Marjamäki, Heikki Tampere University of Technology Department of Mechanics and Design P.O. Box 589 FI-33101 Tampere Finland Institute of Computer Science Academy of Sciences of the Czech Republic Pod vodárenskou věží 2 18207 Prague 8 Czech Republic Aalto University Department of Civil and Structural Engineering P.O. Box 12100 FI-00760 Aalto Finland

Computation of critical points on an equilibrium path requires the solution of a non-linear eigenvalue problem. These critical points could be either bifurcation or limit points. When the external load is parametrized by a single parameter, the non-linear stability eigenvalue problem consists of solving the equilibrium equations along the criticality condition. Several techniques exist for solution of such a system. Their algorithmic treatment is usually focused for direct linear solvers and thus use the block elimination strategy. In this paper special emphasis is given for a strategy which can be used also with iterative linear solvers. Comparison to the block elimination strategy with direct linear solvers is given. Due to the non-uniqueness of the critical eigenmode a normalizing condition is required. In addition, for bifurcation points, the Jacobian matrix of the augmented system is singular at the critical point and additional stabilization is required in order to maintain the quadratic convergence of the Newton's method. Depending on the normalizing condition, convergence to a critical point with negative load parameter value can happen. The form of the normalizing equation is critically discussed. Due to the slenderness of the buckling sensitive structures the resulting matrices are ill-conditioned and a good preconditioner is mandatory for efficient solution. © 2012 Civil-Comp Ltd. and Elsevier Ltd. All rights reserved.

关键词： Jacobian matrices

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An Exponential Moving Average algorithm

An Exponential Moving Average algorithm

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Congress on Evolutionary Computation

作者： David Haynes Steven Corns Ganesh Kumar Venayagamoorthy Systems Design ACLARA Biosciences Inc. St. Louis MO USA Systems Design Aclara St. Louis MO USA Engineering Management and Systems Engineering Dept. Missouri University of Science and Technology Rolla MO USA Holcombe Department of Electrical and Computer Engineering Clemson University Clemson SC USA

Techniques to reduce the search space when an optimizer seeks an optimal value are studied in this paper. A new mutation technique called the “Exponential Moving Average” algorithm (EMA) is introduced. The performance of EMA algorithms is compared to two other similar Computational Intelligence (CI) algorithms (an ordinary Evolutionary Algorithm (EA) and a “Mean-Variance Optimization” (MVO)) to solve a multi-dimensional problem which has a large search space. The classic Sudoku puzzle is chosen as the problem with a large search space.

关键词： Cells (biology) Evolutionary computation Indexes Optimization USA Councils

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Decentralized iISS Robustification of Interconnected Time-Delay Systems: A Small-Gain Approach *

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IFAC Proceedings Volumes 2012年第14期45卷 219-224页

作者： Hiroshi Ito Pierdomenico Pepe Zhong-Ping Jiang Department of Systems Design and Informatics Kyushu Institute of Technology Iizuka Fukuoka 820-8502 Japan Department of Electrical and Information Engineering University of L'Aquila 67040 Poggio di Roio L'Aquila Italy Department of Electrical and Computer Engineering Polytechnic Institute of New York University Brooklyn NY 11201 USA

In this paper we consider the ISS (input-to-state stability) and iISS (integral input-to-state stability) feedback control redesign for interconnected systems described by retarded nonlinear equations with discontinuous right-hand side. We show that it is possible to design a decentralized controller by which the overall closed-loop system is iISS (ISS) with respect to additive disturbances acting on each subsystem whenever the disturbance-free closed-loop system satisfies a small-gain condition.

关键词： Time delay Nonlinear discontinuous systems Redesign Integral input-to-state stability

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Muscle Categorization Using Quantitative Needle Electromyography: A 2-Stage Gaussian Mixture Model Based Approach

Muscle Categorization Using Quantitative Needle Electromyogr...

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International Conference on Machine Learning and Applications (ICMLA)

作者： Meena Abdelmaseeh Pascal Poupart Benn Smith Daniel Stashuk Systems Design Engineering University of Waterloo ON Canada David R. Cheriton School of Computer Science University of Waterloo ON Canada Department of Neurology Mayo Clinic Scottsdale AZ USA

Needle Electromyography, in combination with nerve conduction studies, is the gold standard methodology for assessing the neurophysiologic effects of neuromuscular diseases. Muscle categorization is typically based on visual and auditory assessment of the morphology and activation patterns of its constituent motor units. A procedure which is highly dependent on the skills and level of experience of the examiner. This motivates the development of automated or semi-automated categorization techniques. This paper describes a 2-stage Gaussian mixture model based approach. In the first stage, a muscle is classified as neurogenic or myopathic. The second stage uses a classifier specific to each disease category to confirm or refute the disease involvement. A total of 2556 motor unit potentials sampled from 48 normal, 30 neurogenic and 20 myopathic tibialis anterior muscles were utilized for this study. The proposed approach showed an average accuracy of 91.25%, which is higher than the compared linear and non-linear multi-class schemas. In addition to improved accuracy, the 2-stage approach is more suitable for the muscle categorization, because it has a hierarchical decision structure similar to current clinical practice, and its output can be interpreted as a measure of confidence.

关键词： Muscles Electromyography Artificial neural networks Accuracy Vectors Diseases Feature extraction

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Equality constrained long-short portfolio replication by using probabilistic model-building GA

Equality constrained long-short portfolio replication by usi...

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Congress on Evolutionary Computation

作者： Yukiko Orito Hisashi Yamamoto Yasuhiro Tsujimura Faculty of Economics Hiroshima University Hiroshima Japan Faculty of System Design Tokyo Metropolitan University Tokyo Japan Department of Computer and Information Engineering Nippon Institute of Technology Saitama Japan

Portfolio replication problem is to optimize the portfolio such that its proportion-weighted combination is the same as the given benchmark portfolio. However, the benchmark portfolio generally opens only the return to the public but other information such as the assets included in the portfolio, the proportion-weighted combination, the rebalancing date and the investment strategies is closed to the public. In order to optimize such portfolios, we propose an optimization method based on the probabilistic model-building GA in this paper. On the other hand, we are focusing on the long-short portfolio optimization. The long-short portfolio consists of the assets with long positions in which they have bought and been held and with short positions in which they have been borrowed and sold. While applying any optimization method to the long-short portfolios, the portfolio as a feasible solution must be satisfied an equality constraint. In order to make the feasible solutions effectively, we propose two techniques and then apply them to our optimization method. In the numerical experiments, we show that our method has better ability to replicate the long-short portfolios with good fitness values. We found that, however, some portfolios were not replicated though our method worked well. We also discuss this problem in this paper.

关键词： Portfolios Optimization Benchmark testing

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FERROELECTRIC PROPERTIES OFCaBi4Ti4O15THIN FILMS ON ITO/GLASS SUBSTRATES PREPARED BY SOL-GEL TECHNOLOGY

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International Journal of Modern Physics: Conference Series 2012年第6期ijmpcs卷 91-97页

作者： CHIEN-MIN CHENG MING-CHANG KUAN KAI-HUNAG CHEN JEN-HWAN TSAI Department of Electronic Engineering Southern Taiwan University Tainan Taiwan R.O.C. Department of Electronics Engineering and Computer Science Tung-Fang Design University Kaohsiung Taiwan R.O.C. Department of Mathematics and Physics Chinese Air Force Academy Kangshan Kaohsiung Taiwan R.O.C.

In this study, ferroelectric CaBi 4 Ti 4 O 15 (CBT) thin films prepared by sol-gel method and deposited on ITO/glass substrates for applications in system-on-panel (SOP) devices were fabricated and investigated. The electrical and physical characteristics of as-deposited and annealed CBT thin films for metal-ferroelectric-metal (MFM) structures was discussed and investigated. In addition, the ferroelectric properties in annealed CBT thin films on ITO/glass substrate showed and exhibited clear polarization versus electrical field curves. From p - E curves, the 2 P r value and coercive field of annealed CBT thin films were calculated to be 10μC/cm 2 and 180 kV/cm, respectively. Finally, the maximum capacitance, leakage current density, and transmittance within the ultraviolet-visible (UV–vis) spectrum were also investigated and discussed.

关键词： Sol-gel process CBT thin film ferroelectric ITO/glass Leakage current density

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IMAGE SCALING METHOD BASED ON PROTECTED REGION

IMAGE SCALING METHOD BASED ON PROTECTED REGION

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2012 IEEE 2nd International Conference on Cloud Computing and Intelligence Systems

作者： Lisha Hou Junping Du Lingling Zi Min Zuo Katsunori Shimohara Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer ScienceBeijing University of Posts and Telecommunications School of Computer and Information Engineering Beijing Technology and Business University Department of Information Systems Design Doshisha University

To solve the problem of seriously distortion while enlarging images via seam carving,we proposed an improved method in this ***,we enlarged the image with hierarchical interpolation model to the size of power of two times of original,which is closest to target size,while applying iterative curvature-based interpolation algorithm to protected areas and nearest interpolation to non-protected *** then,some seams to the target size were avoided via seam carving *** the subjective analysis and objective evaluation,the experiment on both standard library images and spatial images showed that the proposed method gave satisfactory results.

关键词： Image scaling ICBI Seam carving Protect region

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