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Congress on Evolutionary Computation

作者： M. Ghannad-Rezaie H. Soltanain-Zadeh M.-R. Siadat K.V. Elisevich Henry Ford Health System and Wayne State University Detroit MI USA Radiology Image Analysis Laboratory Henry Ford Health System Detroit MI USA Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Neurosurgery Department Henry Ford Health System Detroit MI USA

In clinical problems, numerous factors are usually involved in a medical syndrome. New advances in medicine provide a broad range of diagnosis methods to cover all aspects of a disease. However, huge amounts of raw information may confuse clinicians and decrease decision accuracy. computerized knowledge extraction is an active area of research in medical informatics. This paper suggests a new medical data mining approach using an advanced swarm intelligence data mining algorithm. Considering medical knowledge discovery difficulties, this approach addresses common issues such as missing value management and interactive rule extraction. Here, surgery candidate selection in temporal lobe epilepsy is the main target application. However, the general idea can be applied to other medical knowledge discovery problems. Experimental results show noticeable performance improvement in the final rule-set quality while the method is flexible and fast.

关键词： Data mining Particle swarm optimization Temporal lobe Epilepsy Medical diagnostic imaging Biomedical imaging Coronary arteriosclerosis Diseases Surgery Medical services

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A Study of Traffic Survivability Under Malicious Attacks

A Study of Traffic Survivability Under Malicious Attacks

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IEEE Sarnoff Symposium

作者： Yen-Hung Hu Mira Yun Debra Tang Hyeong-Ah Choi Department of Computer Science Hampton University Hampton VA USA Department of Computer Science George Washington University Washington D.C. DC USA Software Engineering Center U.S. Army Cecom Belvoir VA USA

ISBN: (纸本)9781424400027

As the Internet becomes more mature and a part of our daily life, the management of its resources to provide guaranteed services is crucial and beyond the capability of every individual network domain. How to maintain its continuous services in critical conditions is a challenge and would affect the design of next generation network infrastructure. In this paper, we study the survivability of normal traffics under the influences of flooding-based denial of service attacks and propose a potential framework which would reduce such influences. Our research increases the understanding of the behaviors of flooding-based DoS attacks and provides potential trends for developing better malicious attack mitigating solutions. By taking advantages of the survivability of specific flows, the potential mechanisms will not change or only slightly change current network infrastructure and be able to perform quality of service for several existing applications with no or little investment.

关键词： Telecommunication traffic Traffic control computer crime Protocols computer science IP networks Web and internet services software engineering computer network management Resource management

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Exploiting ebXML registry semantic constructs for handling archetype metadata in healthcare informatics

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International Journal of Metadata, Semantics and Ontologies 2006年第1期1卷 21-36页

作者： Dogac, Asuman Laleci, Gokce B. Kabak, Yildiray Unal, Seda Heard, Sam Beale, Thomas Elkin, Peter L. Najmi, Farrukh Mattocks, Carl Webber, David Kernberg, Martin Software Research and Development Center Computer Engineering Department Middle East Technical University Ankara Turkey Ocean Informatics Australia Department of Health Informatics Central Queensland University Australia CHIME University College London United Kingdom United States Department of Medicine Mayo Clinic College of Medicine United States Sun Microsystems Inc. United States CHECKMi NJ United States OASIS CAM TC Washington DC United States UCSF Stanford Medical Informatics Project United States Department of Medicine University of California San Francisco United States

Using archetypes is a promising approach in providing semantic interoperability among healthcare systems. To realise archetype based interoperability, the healthcare systems need to discover the existing archetypes, based on their semantics;annotate their archetypes with ontologies;compose templates from archetypes and retrieve corresponding data from the underlying medical information systems. In this paper, we describe how ebXML Registry semantic constructs can be used for annotating, storing, discovering and retrieving archetypes. For semantic annotation of archetypes, we present an example of an archetype metadata ontology anddescribe the techniques to access archetype semantics through ebXML query facilities. We present a GUI query facility and describe how the stored procedures, which we introduce, move the semantic support beyond what is currently available in ebXML registries. We also address how archetype data can be retrieved from clinical information systems by using ebXML web services. A comparison of web service technology with the ebXML messaging system is provided to justify the reasons for using web services. Copyright © 2006 Inderscience Enterprises Ltd.

关键词： Semantics

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A possibilistic petri-nets-based service matchmaker for multi-agents system architecture

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International Journal of Fuzzy Systems 2005年第4期7卷 199-213页

作者： Lee, Jonathan Wang, Yao-Chiang Wu, Chia-Ling Lee, Shin-Jie Ma, Shung-Pin Deng, Whan-Yo Department of Computer Science and Information Engineering National Central University Taoyuan 320 Taiwan Taiwan Taiwan Software Research Center NCU Taiwan Taiwan Software Engineering Association Taiwan IEEE Computer Society Taiwan ACM Taiwan Department of Computer Science and Information Engineering National Central University Taiwan

The focus of this paper is to devise a service-oriented architecture for multi-agents system (called SAM), to reach a wide adoption and routine use of agents, web services, and semantic web technologies. In order to better integrate agents, web applications and information sources in an open and distributed environment such as the Internet, a service matchmaker called middle agent is responsible for registering and spotting services in SAM. In the making of the service matchmaker there are four components involved: (1) a possibilistic Petri-nets (PPN) based service matchmaking mechanism for discovering services, (2) a service description language based on PPN for describing agent services and web services, (3) a set of ontologies for facilitating the semantic matchmaking, and (4) newly-defined extension mechanisms for bridging the linkage between web service standards and the service matchmaker through a translator.

关键词： Multi agent systems

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Evolutionary agents for intelligent transport systems

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International Journal of Fuzzy Systems 2005年第2期7卷 85-93页

作者： Kuo, Jong Yih Lee, Shin Jie Wu, Chia Ling Hsueh, Nien Lin Lee, Jonathan Department of Computer Science and Information Engineering Fu Jen Catholic University HsinChuang 242 Taipei Taiwan Software Engineering Laboratory Department of Computer Science and Information Engineering Fu Jen Catholic University Taiwan Taiwan Department of Computer Science and Information Engineering National Central University Taiwan Department of Information Engineering and Computer Science Feng Chia University Taiwan Taiwan Office of Information Technology Feng Chia University Taiwan Taiwan Taiwan Software Research Center NCU Taiwan Software Engineering Association Taiwan IEEE Computer Society ACM

When agents are initially created, they have little knowledge and experience with relatively low capability. They strive to adapt themselves to the changing environment. It is an advantage if they have the ability to learn and evolve. This paper addresses evolution of intelligent agents in transport information system. Fuzzy theory and ontological reasoning approach are proposed as evolution mechanisms, and fuzzy soft goal is introduced to facilitate the evolution process. Genetic programming operators are employed to restructure agents in the proposed multi-agent evolution cycle. We have also built an agent system to demonstrate our approach.

关键词： Intelligent agents

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Coverage-directed test generation with model checkers: Challenges and opportunities

Coverage-directed test generation with model checkers: Chall...

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29th Annual International computer software and Applications Conference, COMPSAC 2005

作者： Devaraj, George Heimdahl, Mats P. E. Liang, Donglin Department of Computer Science and Engineering University of Minnesota Software Engineering Center University of Minnesota

ISBN: (纸本)0769522092

When using tools to automatically generate tests-suites from a specification, the selection of coverage criterion that guides the generation process is of imperative importance. In a previous study that evaluated test generation with model checking, we observed that although a coverage criterion may seem reasonable when instrumenting a model or code to measure the adequacy of a test suite, it may be unsuitable when formalized and used to guide the model checker to generate a test suite;the generated tests technically provide adequate coverage according to the formalization, but do so in a way that exercises only small portions of the system under study and finds few faults. Based on those results, we concluded that fully automated test-suite generation techniques must be pursued with great caution and that coverage criteria specifically addressing test-suite generation from formal specifications are needed. In this report, we attempt to better understand these concerns by evaluating several coverage criteria that bring together aspects from condition and control based criteria. We evaluate the fault finding capability of the criteria on a close to production flight guidance system and discuss the opportunities and challenges that arise from the increased use of fully automated model-based testing. © 2005 IEEE.

关键词： software testing

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Meeting the Information Assurance Crisis in the U.S. Now

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EDPACS 2006年第6期28卷 1-14页

作者： Corey Schou Deborah Frincke Charles Reynolds James Frost The Associate Dean of Information Systems Programs at Idaho State University (ISU) in Pocatello and the director of the Center for Decision Support. Currently he serves as the Chair of the National Colloquium on Information System Security Education. Schou also directs the ISU National Center of Excellence in Information Assurance Education and the ISU Technology Innovation Center. Contact Corey Schou one of the authors of this article and the Chair of the NCISSE by email at Schou@*** for help in finding additional ways to address the issues raised in this article. A member of the University of Idaho College of Engineering faculty. She graduated from the University of California at Davis. Frincke is the co-director and co-founder of the university's Center for Secure and Dependable Software (CSDS). She was the program chair for the 2nd International Workshop on Recent Advances in Intrusion Detection (RAID). A professor of Computer Science at the College of Integrated Science and Technology at James Madison University in Harrisonburg Virginia. He holds a Ph.D. in computer science from the University of Texas at Austin and a BA in philosophy from the University of Houston. Reynolds is the Director of Information System Security Education at James Madison University. Since 1997 Reynolds has led the development of the first remote Internet-based curriculum that leads to an M.S. degree in computer science with a concentration in information security. Thus far 160 students have completed this program. A professor of computer information systems at Idaho State University and the manager of its Simplot Decision Support Center.

T he only difference etween evolution and revolution is the speed at which each occurs.

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Kinematics modeling of a wheel-based Pole Climbing Robot (UT-PCR)

Kinematics modeling of a wheel-based Pole Climbing Robot (UT...

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2005 IEEE International Conference on Robotics and Automation

作者： Baghani, Ali Nili Ahmadabadi, Majid Harati, Ahad Control and Intelligent Processing Center of Excellence Department of Electrical and Computer Engineering University of Tehran

ISBN: (纸本)078038914X

This paper is concerned with the derivation of the kinematics model of the University of Tehran-Pole Climbing Robot (UT-PCR). As the first step, an appropriate set of coordinates is selected and used to describe the state of the robot. Nonholonomic constraints imposed by the wheels are then expressed as a set of differential equations. By describing these equations in terms of the state of the robot an underactuated driftless nonlinear control system with affine inputs that governs the motion of the robot is derived. A set of experimental results are also given to show the capability of the UT-PCR in climbing a stepped pole. ©2005 IEEE.

关键词： Mobile robots

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Malfunction detection in multi-cylinder engines using wavelet packet dictionary

Malfunction detection in multi-cylinder engines using wavele...

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SAE 2005 Noise and Vibration Conference and Exhibition

作者： Tafreshi, R. Sassani, F. Ahmadi, H. Dumont, G. Department of Mechanical Engineering Canada Department of Electrical and Computer Engineering University of British Colombia Vancouver BC Canada Department of Electrical and Computer Engineering University of Tehran Center of Excellence in Intelligent Signal Processing Iran

In this paper, wavelets as signal processing tools are used to analyze the acceleration data acquired at the cylinder head for the detection and characterization of combustion malfunctions in multi-cylinder industrial engines. The objectives were to collect data on 1) normal operations, and 2) operations with a deactivated cylinder to simulate a faulty condition. Wavelet packet and local discriminatory basis algorithm are used to select wavelets that can recognize different conditions. It is shown that the wavelet packet provides a useful data analysis structure for extracting features that are capable of detecting the combustion malfunction of one cylinder in a 12-cylinder engine. Feature extraction is followed by a classification that uses a neural network for the fault identification phase. Copyright © 2005 SAE International.

关键词： Combustion

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Fuzzy contributive games: An extension to the game of civic duty

Fuzzy contributive games: An extension to the game of civic ...

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ICTAI 2005: 17th IEEE International Conference on Tools with Artificial Intelligence, ICTAI'05

作者： Danak, Amir Kian, Ashkan Rahimi Control and Intelligent Processing Center of Excellence Department of Electrical and Computer Engineering University of Tehran Tehran Iran

ISBN: (纸本)0769524885

Game theory deals with decision-making processes involving two or more parties with partly or completely conflicting interests. The players involved in the game usually make their decisions under conditions of risk or uncertainty. In this paper, an idea of nondeterministic payoffs is proposed and optimization is done in a more realistic fuzzy environment, helping each player describe his goal functions by using the linguistic variables. Since fuzzy numbers represent uncertain numeric values, their substitution for traditional crisp payoff values is described and their application is surveyed for a specific sample of contributive games - The game of civic duty. A closed formulation is developed for a vast general class of vague payoffs. © 2005 IEEE.

关键词： Game theory

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