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A new ecological network-based grid middleware and its simulation platform

A new ecological network-based grid middleware and its simul...

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IEEE international conference on systems, Man and Cybernetics

作者： Lei Gao Lihong Ren Yongsheng Ding College of Information Sciences and Technology Donghua Uinversity Shanghai China

ISBN: (纸本)0780379527

Next generation grid systems where the emphasis shifts to distributed global collaboration, a service-oriented approach and information layer issues exhibit a strong sense of automation. Requirements for these systems resemble the self-organizing and the healing properties of natural ecological networks. Inspired by this resemblance, we introduce some key ecological concepts and mechanisms into the design for the next generation grid systems. In this paper, a novel Ecological Network-based Grid Middleware (ENGM), which is based on Ecological Network Computing Environment (ENCE), is proposed. This middleware system can address the challenges of the next generation grid systems. That is, it achieves built-in mechanisms to support desirable requirements of new grid systems such as self-organization, survivability, self-evolution, scalability, adaptability, and dynamic configuration and reconfiguration.

关键词： Middleware Biological system modeling Grid computing Automation computer networks Biological systems Computational modeling Prototypes Next generation networking Large-scale systems

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Real-time path planning in dynamic environments: a comparison of three neural network models

Real-time path planning in dynamic environments: a compariso...

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IEEE international conference on systems, Man and Cybernetics

作者： D.V. Lebedev J.J. Steil H. Ritter AG Neuroinformatik Faculty of Technology University of Bielefeld Bielefeld Germany

This paper presents two contributions: (i) a new type of neural network the dynamic wave expansion neural network, for path generation in a dynamic environment for both mobile robots and robotic manipulators, and (ii) the simulative comparisons to known discrete-time neural network models - the classical resistive grid model, and the Hopfield-type neural network, proposed by Glasius et al. The network has discrete-time dynamics, is locally connected, highly parallel, and hence, computationally efficient. The model does not require any a-priory information about the environment. The path is generated according to a neural-activity landscape, which forms a dynamically updating scalar potential field over a distributed representation of the configuration space of a robot. The simulations reveal that the proposed model yields dominantly shorter paths, especially in highly-dynamic environments.

关键词： Path planning Neural networks Hopfield neural networks Manipulator dynamics Mobile robots Computational modeling Mesh generation computer networks Concurrent computing Orbital robotics

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Agent-based control systems for operation and management of intelligent network-enabled devices

Agent-based control systems for operation and management of ...

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IEEE international conference on systems, Man and Cybernetics

作者： Fei-Yue Wang Cheng-Hong Wang Department of Control and Information Systems Faculty of Electrical Engineering ž½ilina Slovakia

ISBN: (纸本)0780379527

This paper outlines an agent-based control approach for operation and management of network-enabled devices that exhibit intelligent behaviors cost effectively. The basic idea is to transform control algorithms into control agents in networked environments under distributed system architectures and new hosting mechanisms for performing operational and control functions. Issues related to modeling and analysis of agent-based control processes as well as corresponding software platforms and middlewares are addressed here. Finally, case studies of agent-based control in real-world industrial applications are described and discussed.

关键词： Control systems Intelligent agent Intelligent networks Costs computer architecture Process control Middleware Electrical equipment industry Industrial control Application software

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On rekey policies for secure group applications

On rekey policies for secure group applications

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international conference on computer Communications and networks (ICCCN)

作者： Q. Zhang K.L. Calvert Laboratory for Advanced Networking University of Kentucky Lexington KY USA

Secure distribution of information to authorized recipients is an important prerequisite for group applications with commercial potential. Typically in such applications data traffic is encrypted using a single key; that key in turn is distributed securely to the group using one of several mechanisms that rely on each member having a unique set of "key encryption" keys. As users join and leave the group, members' keysets have to be changed according to a rekey policy. The rekey policy is important because it determines the security properties provided to the application (e.g. forward/backward secrecy). In this paper we present a general model of rekey policies for large-scale applications, and use it to compare the effectiveness of policies proposed in the literature for various applications. Unlike prior work, which has focused on the cost of rekeying, our model also accounts for the cost of not rekeying. We cast existing policies in terms of our model and then propose a more flexible policy that we call exposure-oriented rekeying. We present simulation results showing that our new policy reduces the peak and variation in cost to achieve a given level of security, compared with periodic or batch-oriented rekeying policies.

关键词： Cryptography Costs Large-scale systems Data security Telecommunication traffic Internet Multimedia communication Broadcast technology Broadcasting Communication system control

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Formalizing active networks security with seal-calculus 03

Formalizing active networks security with seal-calculus

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Proceedings of the 2003 international conference on Parallel and distributed processing and applications

作者： Xiaojuan Zheng Tao Xu Ying Jin College of Computer Science and Technology JILIN University P. R. China College of Mechanism JILIN University P. R. China

ISBN: (纸本)9783540405238

Active networks (ANs) aims at incorporating programmability into the network to achieve flexibility. However, increasing flexibility results in new security risks, which cannot be handled by existing ANs systems. In this paper, we aim at analyzing the security of ANs in language level based on the active code. First, we present the notion of active packet hierarchy. Next, we abstract the AN with Seal-calculus, and security protection is represented formally in four propositions. Finally, an example is used to address security protection. Our security protection is symmetrical, which protects a host from the untrustworthy active codes that migrate to it as well as active codes from the untrustworthy host where it migrates.

关键词： seal-calculus security ANs active codes formalization

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Performance optimizations for group key management schemes

Performance optimizations for group key management schemes

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international conference on distributed Computing systems

作者： Sencun Zhu S. Setia S. Jajodia Center for Secure Information Systems George Mason University Fairfax VA USA MITRE Corporation Mclean VA USA

Recently, many group key management approaches based on the use of logical key trees have been proposed to address the issue of scalable group rekeying that is needed to support secure communications for large and dynamic groups. In this paper, we present two optimizations for logical key tree organizations that utilize information about the characteristics of group members to further reduce the overhead of group rekeying. First, we propose a partitioned key tree organization that exploits the temporal patterns of group member joins and departures to reduce the overhead of rekeying. Using an analytic model, we show that our optimization can achieve up to 31.4% reduction in key server bandwidth overhead over the unoptimized scheme. Second, we propose an approach under which the key tree is organized based on the loss probabilities of group members. Our analysis shows this optimization can reduce the rekeying overhead by up to 12.1%.

关键词： Cryptography Multicast algorithms Multicast protocols Management information systems Bandwidth Teleconferencing IP networks Web and internet services Data security computer science

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Potential issues in novel computational research: artificial immune systems

Potential issues in novel computational research: artificial...

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IEEE international conference on Multi Topic

作者： N. Iqbal M.A. Maarof Group on Artificial Immune Networks and Security (GAINS) Faculty of Computer Science and Information Systems Universiti Teknologi Malaysia Skudai Johor Malaysia

Recent trends in computational research show the significance of computation-based biological research, for example, bioinformatics and system biology, and biologically inspired computational research, which includes genetic algorithms, artificial neural networks, and evolutionary programming. Artificial immune systems (AIS) is a novel computing paradigm inspired from the human immune system (HIS). The dramatic features of HIS like distributability, uniqueness, adaptability, mobility, imperfect-detection, and anomaly-detection, have grabbed the attention of computational researchers for adopting HIS principles to design AIS that are robust, scalable, highly flexible, resilient to sub-versioning, and degrade gracefully. Designers of AIS make use of their creative abilities for designing computational systems by extracting corresponding metaphors from HIS. AIS is growing as a core paradigm for a wide application area including: intrusion detection, data analysis, pattern recognition, optimization, robotics, distributed control, and bioinformatics etc. The field of AIS, being in its infancy, bears enormous research potential. This work aims to throw light on some prospective research issues in the field. The effort is based on (1) latest research references and (2) our experience for pioneering AIS based research infrastructure in the Universiti Teknologi Malaysia (UTM). It may help new researchers to jump start AIS research and save their precious time.

关键词： Artificial immune systems Biology computing computer networks Bioinformatics systems biology Genetic algorithms Artificial neural networks Genetic programming Humans Immune system

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Establishing pairwise keys for secure communication in ad hoc networks: a probabilistic approach

Establishing pairwise keys for secure communication in ad ho...

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international conference on Network Protocols

作者： Sencun Zhu Shouhuai Xu Sanjeev Setia Sushil Jajodia Center for Secure Information Systems George Mason University Fairfax VA USA Department of Computer Science University of Texas San Antonio San Antonio TX USA University of California Irvine USA

ISBN: (纸本)0769520243

A prerequisite for a secure communication between two nodes in an ad hoc network is that the nodes share a key to bootstrap their trust relationship. In this paper, we present a scalable and distributed protocol that enables two nodes to establish a pairwise shared key on the fly, without requiring the use of any on-line key distribution center. The design of our protocol is based on a novel combination of two techniques - probabilistic key sharing and threshold secret sharing. Our protocol is scalable since every node only needs to possess a small number of keys, independent of the network size, and it is computationally efficient because it only relies on symmetric key cryptography based operations. We show that a pairwise key established between two nodes using our protocol is secure against a collusion attack by up to a certain number of compromised nodes. We also show through a set of simulations that our protocol can be parameterized to meet the desired levels of performance, security and storage for the application under consideration.

关键词： Intelligent networks Ad hoc networks Peer to peer computing Cryptographic protocols Public key cryptography Network servers computer science computer networks Secure storage Information systems

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Collaborative intrusion detection system

Collaborative intrusion detection system

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conference of the North American Fuzzy Information Processing Society - NAFIPS

作者： P. Miller A. Inoue Department of Computer Science Eastern Washington University WA USA

This paper presents an intrusion detection system consisting of multiple intelligent agents. Each agent uses a self-organizing map (SOM) in order to detect intrusive activities on a computer network. A blackboard mechanism is used for the aggregation of results generated from such agents (i.e. a group decision). In addition, this system is capable of reinforcement learning with the reinforcement signal generated within the blackboard and then distributed over all agents which are involved in the group decision making. systems with various configurations of agents are evaluated for criteria such as speed, accuracy, and consistency. The results indicate an increase in classification accuracy as well as in its constancy as more sensors are incorporated. Currently this system is primarily tested on the data set for KDD Cup '99.

关键词： Collaboration Intrusion detection Data security computer science computer networks Frequency estimation Velocity measurement Intelligent agent Learning Signal generators

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Chaotic Secure Communications Based on Discrete-Time Chaos Noise Generator

Chaotic Secure Communications Based on Discrete-Time Chaos N...

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The Fourth international conference on Parallel and distributed Computing, Applications and Technologies

作者： Wenfang Zhang Dake He School of Computer and Communications Engineering Southwest Jiaotong University Research center for secure application in networks and communications Southwest Jiaotong University

In view of chaos synchronization systems sensitivity to parameter mismatches,a new class of chaotic secure communication schemes based on the discrete time chaos noise generator is *** this scheme it is easy to adjust the level of systems security by raising its exponent or increasing its mapping iteration *** results show this new scheme can resist the attack of adaptive synchronization and has better security properties, when compared with the formal schemes based on the decomposition of low dimensional chaotic systems,and it can be implemented easily.

关键词： chaos general chaos synchronization adaptive control of chaos synchronization discrete-time chaotic noise generator secure communication

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