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2nd International Conference on Communication Software and networks, ICCSN 2010

作者： Xia, Hong Chen, Yan Gao, Haichang Li, Zengzhi Chen, Yanping Institute of Computer System Architecture and Network Xi'an Jiaotong University Xi'an China Software Engineering Institute Xidian University Xi'an China Department of Computer Science and Technology Xi'an Institute of Post and Telecommunication Xi'an China

ISBN: (纸本)9780769539614

Matchmaking is the basis of service discovery and composition. Using ontology semantically express the capabilities of services, accurately match, discovery and composition service. Domain ontologies and Formal Concept Analysis (FCA) aim at modeling concepts, the role of FCA in ontology engineering is supporting the critical task of reusing independently developed domain ontologies. Evaluating concept similarity identifies the different concepts that are semantically close. In this paper, using concept and attribute of Web services to construct the ontology. Also, an ontology-based method for assessing similarity between FCA concepts is proposed. Such a method is intended to support the ontology engineer in difficult activities such as ontology merging and ontology mapping in the development of the Semantic Web. © 2010 IEEE.

关键词： Ontology

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4-5 SF-TAP: Scalable and flexible traffic analysis platform

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Journal of the National institute of Information and Communications Technology 2016年第2期63卷 103-112页

作者： Takano, Yuuki Cybersecurity Laboratory Cybersecurity Research Institute Computer Architecture Network System Network Security Japan

Application-level network traffic analysis is a fundamental technology, which could be widely adopted such as intrusion detection system. However, network traffic analysis algorithms consuming considerable computational resources can not be adopted by using conventional network capturing technologies. In addition, developing an application protocol analyzer is a tedious and time consuming task. Therefore, in this paper, we propose a scalable and exible traffic analysis platform (SF-TAP) that provides an efficient and exible application-level stream analysis of high-bandwidth network traffic. Because SF-TAP is horizontally scalable, such heavy algorithms can be adopted for high-bandwidth networks. Furthermore, because of the modularity of SF-TAP, developers can easily implement network traffic analyzers by using SF-TAP.

关键词： Intrusion detection

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network traffic prediction based on seasonal ARIMA model

Network traffic prediction based on seasonal ARIMA model

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World Congress on Intelligent Control and Automation (WCICA)

作者： Li Wang Zengzhi Li Chengqian Song Institute of Computer System Architecture and Network Xi''an Jiaotong University Xi'an China

ISBN: (纸本)0780382730

Traffic prediction plays an important role in network layout, traffic management and etc. Two weeks network traffic of CERNET northwest center was investigated by seasonal ARIMA model and a traffic prediction model was proposed. Model parameters were educed by improved linear modeling. Traffic prediction data under different steps were computed according to the model. The experiments results show that the prediction data match real data approximately when prediction step is less than 10. The least mean square error of prediction is independent of time and only depends on step. The mean square error becomes bigger and the prediction effect becomes worse when the step becomes more.

关键词： Telecommunication traffic Traffic control Predictive models Mean square error methods computer networks computer architecture Electronic mail computer network management Least squares approximation

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Internet object-oriented information model

Internet object-oriented information model

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Technology of Object-Oriented Languages and systems (TOOLS)

作者： Chuanfeng Chen Zengzhi Li Institute of Computer System Architecture & Network Xi''an Jiaotong University Xi'an China

In the network management area, management information models are based on a center of managed objects to denote the abstract of network resource. Internet management standards only tell how to access management variables. Aiming at making use of recent advances in distributed computing and in object oriented analysis and design, an Internet management architecture can also be based on the Open Distributed Processing Reference Model (RM-ODP). The purpose of the article is to provide an Internet object oriented information model. First, a layered management information architecture is discussed. Subsequent sections of the article present the generic object oriented information model. The information model is specified using Object-Z.

关键词： Internet Object oriented modeling Information management Resource management computer architecture computer network management Distributed computing Distributed processing computer networks Information retrieval

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Attribute reduction in concept lattice based on discernibility matrix

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10th International Conference on Rough Sets, Fuzzy Sets, Data Mining, and Granular Computing, RSFDGrC 2005

作者： Zhang, Wen-Xiu Wei, Ling Qi, Jian-Jun Faculty of Science Institute for Information and System Sciences Xi'an Jiaotong University Xi'an 710049 China Department of Mathematics Northwest University Xi'an 710069 China Institute of Computer Architecture and Network Xi'an Jiaotong University Xi'an 710049 China

ISBN: (纸本)3540286608

As an effective tool for knowledge discovery, concept lattice has been successfully applied to various fields. One of the key problems of knowledge discovery is knowledge reduction. This paper studies attribute reduction in concept lattice. Using the idea similar to Skowron and Rauszer's discernibility matrix, the discernibility matrix and function of a concept lattice are defined. Based on discernibility matrix, an approach to attribute reduction in concept lattice is presented, and the characteristics of core attribute are analyzed. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Knowledge based systems

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Distributed service performance management based on linear regression and genetic programming

Distributed service performance management based on linear r...

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Chen, Jing Li, Zeng-Zhi Liao, Zhi-Gang Wang, Yun-Lan Telecommunication Engineering Institute Air Force Engineering University Xi'an 710077 China Institute of Computer System Architecture and Network Xi'an Jiaotong University Xi'an 710049 China Center for High Performance Computing Northwestern Polytechnical University Xi'an 710072 China

ISBN: (纸本)078039092X

An architecture for online discovery quantitative models system of service performance management was proposed. The system was capable of constructing the quantitative models without prior knowledge of the managed elements. The model can be updated continuously in response to the changes made in provider configurations and the evolution of business demands. Due to the existence of strong correlation between the distributed service metrics and response times, a linear and a hyper- linear quantitative models are constructed, which respectively use the stepwise multiple linear regression and genetic programming algorithms. The simulation results show that the effectiveness of quantitative model constructing system and model constructing algorithms. © 2005 IEEE.

关键词： Online systems

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Web Service Selection Algorithm Based on Particle Swarm Optimization

Web Service Selection Algorithm Based on Particle Swarm Opti...

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IEEE International Symposium on Dependable, Autonomic and Secure Computing (DASC)

作者： Hong Xia Yan Chen Zengzhi Li Haichang Gao Yanping Chen Institute of Computer System Architecture and Network Xi'an Jiaotong University Xi'an China Software Engineering Institute Xidian University Xi'an China Department of Computer Science and Technology Xi'an Institute of Post and Telecommunications Xi'an China

A novel multi-objective optimization based particle swarm optimization algorithm is presented to solve the global optimization problem for based services selecting in Web services composition technology. This algorithm takes Web services selection as a multi-objective constrained optimization problem with constraints. It introduces multi-objective PSO intelligent theory to optimize multi parameters simultaneously, and produces a set of constraints to meet the Pareto optimal solution. The experiments show that the algorithm is a feasible and efficient method for Web services selection.

关键词： Web services Particle swarm optimization Quality of service Constraint optimization computer networks Software algorithms Service oriented architecture Linear programming Optimization methods Telecommunication computing

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Multi-Cell Coordinated Scheduling and Power Allocation in Downlink LTE-A systems

Multi-Cell Coordinated Scheduling and Power Allocation in Do...

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IEEE Vehicular Technology Conference

作者： Jian Yu Geoffrey Ye Li Changchuan Yin Suwen Tang Xiaolong Zhu Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications School of Electrical and Computer Engineering Georgia Institute of Technology Huawei Shanghai Research Institute

ISBN: (纸本)9781479944484

In this paper, we investigate multi-cell coordinated scheduling and power allocation in downlink long term evolution advanced (LTE-A) systems, where orthogonal frequency division multiple-access (OFDMA) is used. The proposed scheme performs joint scheduling, power allocation, and modulation and coding scheme (MCS) selection to maximize the overall weighted throughput with proportional fairness. Our scheme considers the practical constraints in LTE-A systems. Since the optimization problem is a combinatorial and non-convex one and is with high complexity, low-complexity and suboptimal algorithms are proposed, which separate the scheduling and power allocation into two subproblems. Simulation results show that the proposed scheme can improve the average system throughput by 10% and the 10th percentile throughput by 15% compared with the existing scheme.

关键词： Resource management Throughput Interference Signal to noise ratio Indexes Optimization Scheduling

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A Model Analyzing Method for OWL-S Services Composition Based on High Level Petri Net

A Model Analyzing Method for OWL-S Services Composition Base...

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International Symposium on Knowledge Acquisition and Modeling, KAM

作者： Shaoran Dong Zengzhi Li State key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing China Institute of Computer System Architecture and Network Xi''an Jiaotong University Xi'an China

To analyze model of Web services composition, firstly analyze and abstract dataflow and control construct in OWL-S process to build high level Petri net model, then describe Petri net in Poses++ language, at last simulate Petri net with Poses++ to check data type and deadlock and calculate service performance. The experiment shows that this model analyzing method is able to accomplish type checking and deadlock and performance analyzing.

关键词： Performance analysis Web services system recovery Data analysis Petri nets Ontologies OWL Analytical models Knowledge acquisition computer networks

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Particle Swarm Algorithm for the Quality of Service-Oriented Web Services Selection

Particle Swarm Algorithm for the Quality of Service-Oriented...

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International Symposium on Knowledge Acquisition and Modeling, KAM

作者： Hong Xia Zengzhi Li State key Laboratory of Networking and Switch Technology Beijing University of Posts and Telecommunications Beijing China Institute of Computer System Architecture and Network Xi''an Jiaotong University Xi'an Shaanxi China

Existing Web services composition technology, lack of services selecting. A particle swarm optimization algorithm based on the multi-objective optimization strategies was provided to address quality of services to choose the issue of global optimization. It is to transform Web services select the overall optimization problem with QoS into a multi-objective constrained optimization problem based on Qos, using multi-objective PSO intelligent theory, by a number of Qos parameters optimized at the same time, and ultimately produce a set of constraints to meet the Pareto optimal solution. The experimental results show the feasibility and efficiency of the algorithm.

关键词： Particle swarm optimization Web services Quality of service Constraint optimization Pareto optimization Service oriented architecture Switches Constraint theory Logic Optimization methods

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