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Intelligent-adaptive flight control with a physiologically motivated algorithm

International Journal of Modelling and Simulation 2009年第1期29卷 12-18页

作者： Mehrabian, A.R. Lucas, C. School of Mechanical Engineering Department of Engineering University of Tehran P.O. Box: 14875 - 347 Tehran Iran Center of Excellence for Control and Intelligent Processing School of Electrical and Computer Engineering Department of Engineering P.O. Box: 14395 - 515 Tehran Iran School of Cognitive Science IPM Tehran Iran

This paper presents a now intelligent approach for adaptive control of non-linear dynamic systems. Based on past researches on emotionally intelligent-control systems, the introduced method is a modified version of Brain Emotional Learning Based Intelligent Controller (BELBIC), a physiologically motivated system previously developed and successfully used in control applications. The proposed approach is able to quickly respond to change in environmental and dynamic system and realizes online diroct-adaptivc-control scheme. Showing very good robustness, BELBIC is very simple in implementation and imposes very low computation load on the control system. This modified algorithm has boon successfully applied to real-time longitudinal control of an agile air-to-air missile which has over-changing non-linear dynamics.

关键词： Intelligent systems

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The Application of the Locally Linear Model Tree on Customer Churn Prediction

The Application of the Locally Linear Model Tree on Customer...

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International Conference of Soft Computing and Pattern Recognition (SOCPAR)

作者： Amineh Ghorbani Fattaneh Taghiyareh Caro Lucas Faculty of Technology Policy and Management Delft University of Technnology Delft Netherlands Department of Electrical and Computer Engineering University of Tehran Tehran Iran Control and Intelligent Processing Center of Excellence Electrical and Computer Engineering Department University of Tehran Tehran Iran

Acquiring new customers in any business is much more expensive than trying to keep the existing ones. Thus many prediction models are presented to detect churning customers. The objective of this paper was to improve the predictive accuracy and interpretability of churn detection. For this purpose, the application of the locally linear model tree (LOLIMOT) algorithm, which integrates the advantage of neural networks, tree model and fuzzy modeling, was experimented. Applied to the data of a major telecommunication company, the method is found to improve prediction accuracy significantly compared to other algorithms, such as artificial neural networks, decision trees, and logistic regression. The results also indicate that LOLIMOT can have accurate outcome in extremely unbalanced datasets.

关键词： Predictive models Decision trees Neural networks Accuracy Artificial neural networks Logistics Regression tree analysis Pattern recognition Application software Conference management

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Hybrid Ant System/Priority List Method for Unit Commitment Problem with Operating Constraints

Hybrid Ant System/Priority List Method for Unit Commitment P...

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IEEE International Conference on Industrial Technology (ICIT)

作者： K. Withironprasert S. Chusanapiputt D. Nualhong S. Jantarang S. Phoomvuthisarn Department of Electrical Power Engineering Faculty of Engineering Mahanakom University of Technology Bangkok Thailand Department of Computer Engineering and Satellite Research Center Faculty of Engineering Mahanakom University of Technology Bangkok Thailand Electrical Engineering Department Electrical and Control System Engineering Division Electricity Generating Authority of Thailand Bangkok Thailand Center of Excellence in Electrical Power Technology Chulalongkom University Bangkok Thailand

This paper presents a new method to solve unit commitment problem with operating constraints using a hybrid ant system/priority list method (HASP). The proposed methodology employs ant system in cooperating with the priority list method to find unit commitment solution as means of mutually combining the advantages of them in that a flexibility of the priority list method is reinforced, while AS algorithm can gain the benefit of using bias information for improving its performance during search process. The simulation results show that the proposed HASP is capable of obtaining satisfactory solution within reasonable computational time. Moreover, the proposed HASP can be extensively applied to handle the ramp rate limits and the operating reserve constraint, which are important for modern power system operation.

关键词： Transformers Load flow Admittance Mathematical model Power system modeling Medium voltage Mutual coupling Gaussian distribution Convergence Electronic mail

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Perfect forward secure identity-based authenticated key agreement protocol in the escrow mode

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Science in China(Series F) 2009年第8期52卷 1358-1370页

作者： WANG ShengBao CAO ZhenFu CHENG ZhaoHui CHOO Kim-Kwang Raymond Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China Computing Center Artillery Academy of PLA Hefei 230031 China Independent Consultant Room 1415 International Chamber of Commerce Building A Shenzhen 518048 China Australian Institute of Criminology GPO Box 2944 Canberra ACT 2601 Australia ARC Centre of Excellence in Policing and Security Regulatory Institutions Network Australian National University Australia

The majority of existing escrowable identity-based key agreement protocols only provide partial forward secrecy. Such protocols are, arguably, not suitable for many real-word applications, as the latter tends to require a stronger sense of forward secrecy--perfect forward secrecy. In this paper, we propose an efficient perfect forward-secure identity-based key agreement protocol in the escrow mode. We prove the security of our protocol in the random oracle model, assuming the intractability of the Gap Bilinear Diffie-Hellman （GBDH） problem.

关键词： authenticated key agreement perfect forward secrecy bilinear pairing provable security modular security proof

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Interior permanent magnet synchronous motor (IPMSM), with a developed brain emotional learning based intelligent controller (BELBIC)

Interior permanent magnet synchronous motor (IPMSM), with a ...

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IEEE International Conference on Electric Machines and Drives (IEMDC)

作者： E. Daryabeigi Gh. Arab Markadeh C. Lucas Electrical Engineering Department of Islamic Najafabad branch Islamic Azad University슠 Isfahan Iran Faculty of engineering Department Shahrekord University Shahrekord Iran Iranian Control & Intelligent Processing Center of Excellence Electrical and Computer Engineering Department University of Tehran Tehran Iran

In this paper, a modern intelligent control based on computational model of mammalian limbic system and emotional processes (BELBIC) is presented for speed control of interior magnet synchronous motor (IPMSM). In this work, a novel and simple model of IPMSM motor drive control plant is achieved by using the intelligent control system, which controls motor speed accurately, without needing to using any conventional controllers and also, quite independent of motor parameters. This work was successfully implemented in real time for a laboratory 1-hp IPMSM drive, but this time it is done in simulation by a new control plant for that, which compared with together. Achieved results of the proposed plant show better operating control than the previous plant. The results show excellent control characteristics especially very fast response, simple implementation and robustness with respect to disturbances and manufacturing imperfections. This type of intelligent controllers that has high auto learning speed with simple structure shows superior praxis for industrial scale utilization.

关键词： Permanent magnet motors Synchronous motors Intelligent control Computational intelligence Computational modeling Velocity control Motor drives Control system synthesis Laboratories Robust control

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How do scientists develop and use scientific software?

How do scientists develop and use scientific software?

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ICSE Workshop on software engineering for Computational Science and engineering, SECSE

作者： Jo Erskine Hannay Carolyn MacLeod Janice Singer Hans Petter Langtangen Dietmar Pfahl Greg Wilson Department of Software Engineering Simula Research LaboratoryDepartment of Informatics University of Oslo Norway Center of Biomedical Computing Simula Research Laboratory Department of Informatics University of Oslo Norway Department of Computer Science University of Toronto Canada Software Engineering Group National Research Council Canada Canada

ISBN: (纸本)9781424437375

New knowledge in science and engineering relies increasingly on results produced by scientific software. Therefore, knowing how scientists develop and use software in their research is critical to assessing the necessity for improving current development practices and to making decisions about the future allocation of resources. To that end, this paper presents the results of a survey conducted online in October-December 2008 which received almost 2000 responses. Our main conclusions are that (1) the knowledge required to develop and use scientific software is primarily acquired from peers and through self-study, rather than from formal education and training; (2) the number of scientists using supercomputers is small compared to the number using desktop or intermediate computers; (3) most scientists rely primarily on software with a large user base; (4) while many scientists believe that software testing is important, a smaller number believe they have sufficient understanding about testing concepts; and (5) that there is a tendency for scientists to rank standard software engineering concepts higher if they work in large software development projects and teams, but that there is no uniform trend of association between rank of importance of software engineering concepts and project/team size.

关键词： software testing software engineering Knowledge engineering Resource management computer science education Supercomputers Peer to peer computing Automatic testing software standards Standards development

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Estimating spatial cues for audio coding in MDCT domain

Estimating spatial cues for audio coding in MDCT domain

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Shuixian Chen Ruimin Hu Shuhua Zhang Computer School Wuhan University of China Wuhan China National Engineering Research Center of Multimedia Software Wuhan University of China Wuhan China Department of Electronic Engineering Tsinghua University Beijing China

Although widely used otherwise, MDCT is excluded in the current scheme for spatial cues representation, due to its lacking of phase information and energy conservation. But combining MDCT with MDST overcomes the difficulties. Moreover, MDST spectra can be built perfectly from neighboring MDCT spectra. The MDCT-MDST conversion, in matrix form, is approximating to a banded sparse matrix. When applied to spatial audio coding using MDCT based core coders, this method avoids separate transforming for cues representation and saves significant computation. Listening tests also show that it has same audio quality as other complex transform based methods.

关键词： Audio coding Discrete transforms Power generation economics Delay Testing Energy conservation Sparse matrices Computational complexity Mirrors Filter bank

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Impacts of Loop Restoration Strategy on distribution system reliability

Impacts of Loop Restoration Strategy on distribution system ...

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Power Tech Conference

作者： Shahram Kazemi Mahmud Fotuhi-Firuzabad Majid Sanaye-Pasand Matti Lehtonen Department of Electrical Engineering Helsinki University of Technology Espoo Finland Department of Electrical Engineering Sharif University of Technology Tehran Iran Center of Excellence in Power System Control and Management Department of Electrical Engineering Sharif University of Technology Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran

Implementation of distribution automation (DA) in electric power distribution systems can result in customer satisfaction with improved reliability, consistent quality and high-tech services. Loop restoration strategy (LRS) is a special DA method in the feeder level which is used by electric utilities to improve distribution system reliability. The effects of the implemented LRS on the reliability indices of a given distribution system mainly depend on its automatic control system (ACS). Selecting the type of ACS of LRS by electric utilities relies on the level of improvement required at load points and system oriented reliability indices. A step by step evaluation procedure is proposed in this paper to quantitatively assess the impacts of two common types of ACS of LRS on reliability indices of a distribution reliability test system.

关键词： Circuit faults Frequency Power system reliability Power system restoration Automation Customer satisfaction Power industry Automatic control Fuses Protection

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ISS: Intelligent Surveillance System Using Autonomous Multiple Cameras

ISS: Intelligent Surveillance System Using Autonomous Multip...

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International Conference on Ubiquitous Information Technologies and Applications (ICUT)

作者： Suckchul Kim Yunyoung Nam Jinhyung Kim We-Duke Cho Center of excellence of Ubiquitous System Ajou University South Korea Department of Electrical and Computer Engineering State University of New York Stony Brook NY USA

In this paper, we present an intelligent surveillance system that supports autonomous camera collaboration. We applied the multiple independent levels of security to constructing the region of interest in the monitoring area using autonomous cameras. To determine the security level, we developed various methods to recognize abnormal situation such as camera tampering and violence. To track moving an object continuously, a camera locks onto a target object in a real-time. Our system tracks across multiple cameras with both overlapping and non-overlapping fields of view using automatic topology construction. In addition, we implemented a safety index map and a 2D map using Google Earth API functions for effective monitoring.

关键词： Intelligent systems Surveillance Smart cameras Security Monitoring Target tracking Collaboration Topology Safety Earth

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Optimal waypoint placement for road surveillance using unmanned aerial vehicles

Optimal waypoint placement for road surveillance using unman...

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作者： McDonald, Suzanne Holsapple, Raymond W. Kingston, Derek University of Maryland College Park MD 20742 United States Air Force Research Laboratory Wright-Patterson AFB OH 45433 United States Department of Electrical and Computer Engineering College Park MD 20742 United States Control Science Center of Excellence Wright-Patterson AFB OH 45433 United States

ISBN: (纸本)9781563479786

In this paper we consider an intelligence, surveillance and reconnaissance (ISR) mission where a human operator and a team of unmanned aerial vehicles (UAVs) are tasked to patrol a road. There are numerous inherent ISR benefits for patrolling a road. For example it might be beneficial to track the suspected movements of enemy troops in a forward operating location. Another example might be to gather intelligence that could then be used, possibly not in real time, to perform change detection, a method that might help with the detection of improvised explosive devices (IEDs). The layout of the road, with respect to a fixed known reference point, is assumed to be known a priori. For example the latitude and longitude coordinates of various points along the road would be sufficient. Most UAV autopilots make use of waypoint navigation to control the vehicle. This work investigates one method of optimally choosing the waypoints for the UAVs along the road. The cost function used minimizes the cross-track area error.

关键词： Cost functions

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