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3rd ACIS International Conference on software Engineering Research, Management and Applications, SERA 2005

作者： Duan, Yucong Cheung, S.C. Fu, Xiaolan Gu, Yuqing Institute of Software Chinese Academy of Sciences China Department of Computer Science Hong Kong University of Science and Technology Hong Kong State Key Laboratory of Brain and Cognitive Science Institute of Psychology Chinese Academy of Sciences China

ISBN: (纸本)0769522971

The information transformation problem of model driven software development (MDSD) processes is gaining increasing attentions. In this paper, we present an indepth analysis of the major causes leading to the ambiguities of existing transformation. A metamodel based approach is then proposed to address these causes, A mechanism to generate transformation rules is devised based on a classification of the UML metamodel elements to be used in subsequent transformation processes. Some other critical issues relating to the generated transformation system are also discussed. © 2005 IEEE.

关键词： software engineering

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Multi-objective evolutionary algorithm based on orthogonal design

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Jisuanji Xuebao/Chinese Journal of computers 2005年第7期28卷 1153-1162页

作者： Zeng, San-You Wei, Wei Kang, Li-Shan Yao, Shu-Zhen Department of Computer Science and Technology Zhuzhou Institute of Technology Zhuzhou 412008 China Department of Computer Science and Technology China University of Geosciences Wuhan 430074 China State Key Laboratory of Software Engineering Wuhan University Wuhan 430072 China

A multi-objective evolutionary algorithm (MOEA), called orthogonal multi-objective evolutionary algorithm (OMOEA), is proposed in this paper. The idea of OMOEA is that an original niche (decision space) evolves first, and splits into a group of subniches according to the output niche-population of the evolution;then every subniche iterates the above operations so as to enhance the precision of the solutions. The main component of the new technique is the niche evolution procedure which uses a generalized design method for MOPs to locate a non-dominated set like the orthogonal design and uses the statistical optimal method for SOPs to locate optimal solution. Employed orthogonal design method and statistical method, the OMOEA can converge fast and yield evenly distributed solutions with high precision. The numerical results show that above algorithm performs better than SPEA and other MOEAs for MOPs with two objectives. For an engineering MOP with five objectives and seven constraints, the new technique finds the precise Pareto-optimal solutions which is unknown before.

关键词： Evolutionary algorithms

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Logic-based inference detection in querying XML document

Logic-based inference detection in querying XML document

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2005 International Conference on Information and Knowledge Engineering, IKE'05

作者： Baowen, Xu Jixiang, Jiang Jianjiang, Lu Peng, Wang Dazhou, Kang Department of Computer Science and Engineering Southeast University Nanjing 210096 China Jiangsu Institute of Software Quality Nanjing 210096 China State Key Laboratory of Software Wuhan University Wuhan 430072 China PLA University of Science and Technology Nanjing 210007 China

ISBN: (纸本)9781932415810

The widely use of extensible Markup Language (XML) raises the importance of security and access control for XML documents. Besides access control for XML document on node-level, it is also important to control users for accessing association between the nodes. Inference detection plays a central role in associationlevel access control. In this paper we propose a logicbased approach for inference detection in querying XML document. At first, Basic information is obtained from user query logs and "information-trees" are used to represent all the information a user gets. Then Logic-based method is used to find overlapping parts between "information-trees". Finally, inference detection is achieved by merging the "information-trees". This approach can be used to detect much common inference channels, and can serve as a basic model for future extension.

关键词： XML

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The Research and Implematation of Services Discovery Agent in Web Services Composition Framework

The Research and Implematation of Services Discovery Agent i...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Bin Li Xiao-Yan Tang Jian Lv State Key Laboratory for Novel Software Technology Nanjing University Nanjing China Department of Computer Science and Engineering Yangzhou University Yangzhou China

Web services are emerging as a dominant paradigm for constructing and composing distributed business applications and enabling enterprise-wide interoperability. A critical factor to the overall utility of web services composition is a flexible services discovery mechanism. The goal of this paper is to propose an agent-based approach to web services discovery. Firstly, an agent-based framework for web services composition is presented. Next, web services QoS model and description are introduced and an algorithm of selecting services from the perspective of composition is given. Finally, web services discovery agent is designed and its implementation based on JADE platform is presented in detail.

关键词： Web services Quality of service software agents Application software Middleware computer science Laboratories Distributed computing Intelligent agent Monitoring

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Research on the analysis and measurement for testing results of web applications

Research on the analysis and measurement for testing results...

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2005 International Conference on Cyberworlds, CW 2005

作者： Xu, Lei Xu, Baowen He, Yanxiang Chen, Hanwu Zhu, Qiaoming Department of Computer Science and Engineering Southeast University Nanjing 210096 China Jiangsu Institute of Software Quality Nanjing 210096 China State Key Laboratory of Software Engineering Wuhan University Wuhan 430072 China School of Computers National University of Defense Technology Changsha 410073 China School of Computer Science and Technology Soochow University Soochow 215006 China

ISBN: (纸本)0769523781

Reasonable analysis and corrective measurement for the testing results of Web applications can effectively judge the effect and efficiency of the testing. Therefore, based on the previous work, we propose a new method for testing results analysis and comparison, which uses the semantic label and XML description technique to realize the information separation between data and display in the Web pages, so as to directly compare the testing results and the expected results. Furthermore, combined with the realities, we determine the metric indexes of Web application testing, so as to provide the criterions and guidelines for the evaluations of the Web applications and their testing processes. And we introduce the feedback control mechanism into the development and evolvement of Web applications, so as to further improve the system quality. © 2005 IEEE.

关键词： World Wide Web

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Approximate information retrieval for heterogeneity ontologies

Approximate information retrieval for heterogeneity ontologi...

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2005 International Conference on Cyberworlds, CW 2005

作者： Kang, Dazhou Xu, Baowen Lu, Jianjiang Li, keyue Chu, William C. Chen, Hanwu Department of Computer Science and Engineering Southeast University Nanjing 210096 China Jiangsu Institute of Software Quality Nanjing 210096 China State Key Laboratory of Software Wuhan University Wuhan 430072 China PLA University of Science and Technology Nanjing 210007 China Department of Computer Science and Information Engineering TungHai University Taiwan Taiwan Department of Computer Science and Engineering Southeast University 210096 Nanjing China

ISBN: (纸本)0769523781

Ontology-based information retrieval is precise and effective but suffers from the problem of ontology heterogeneity. This paper focuses on the approximate information retrieval approach to solve the heterogeneity problem of both common ontologies as well as fuzzy ontologies on the semantic web. Approximate information retrieval needs to find approximations of concepts. However, current methods cannot find the best approximations of concepts for common ontologies, and there is still no published work for fuzzy ontologies. This paper firstly proposes a method of approximate information retrieval between common ontologies. It defines multielement least upper bounds and multielement greatest lower bounds, and then simplifies the multielement bounds to remove redundancy. It provides effective algorithms to find the simplified multielement bounds, and get the best approximations of concepts from the bounds. Then for the fuzzy ontologies, the paper defines cut concepts to transform fuzzy concepts into common concepts, and then applies the proposed method for approximate information retrieval between fuzzy ontologies. The improved algorithms for fuzzy ontologies are given to make the method more feasible and effective. © 2005 IEEE.

关键词： Information retrieval

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Study of Multi media Streams Dynamic Rate Control Based on Fuzzy Adaptive PID

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The Journal of China Universities of Posts and Telecommunications 2005年第4期12卷 75-79页

作者： SUN Yan-fei ZHANG Shun-yi SHI Jin WANG Jiang-tao Jiangsu Province Engineering Research Center of Telecommunication dr Network Technology Nanjing University of Posts and TelecommunicationsNanjing 210003 P.y. China State Key Laboratory of Novel Software Technology Nanjing University Nanjing 210093 P. R. China Department of Computer Science and Technology Nanjing University of Posts and Telecommunications Nanjing 210003 P. R. China

A Multimedia streams dynamic rate control algorithm based on Fuzzy adaptive PID （MFPID） has been proposed to implement multimedia streams＇ end sending rate on-line self-regulating and smoothing, and to track system resources in time, so that it can avoid system＇s regulating oscillation and guarantee system＇s stability. And, some work has been done to analyze adaptive session model of multimedia streams, to implement future available bandwidth estimation of IP network, to achieve PID parameters＇ on-line self-tuning by fuzzy controlling. Simulation validated the theoretical results of MFPID.

关键词： multimedia transmission dynamic end sending rate PID adaptive regulating fuzzy parameter self-tuning

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Investigating manifold learning algorithms based on magnification factors and principal spread directions

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Jisuanji Xuebao/Chinese Journal of computers 2005年第12期28卷 2000-2009页

作者： He, Li Zhang, Jun-Ping Zhou, Zhi-Hua Shanghai Key Laboratory of Intelligent Information Processing Department of Computer Science and Engineering Fudan University Shanghai 200433 China Key Laboratory of Complex Systems and Intelligence Science Chinese Academy of Sciences Shanghai 200433 China Department of Computer Science and Engineering School of Mathematical Sciences Fudan University Shanghai 200433 China National Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China

As a new unsupervised learning technique, manifold learning has captured the attention of many researchers in the field of machine learning and cognitive sciences. The major algorithms include Isometric mapping (ISOMAP) and Locally Linear Embedding (LLE). The approaches can be used for discovering the intrinsic dimensions of nonlinear high-dimensional data effectively and aim researchers to analyze the data better. How to quantitatively analyze the relationship between the intrinsic dimensions and the observation space, however, has fewer reports. And thus further works in manifold learning may have suffered some difficulties. The paper focuses on two kinds of manifold learning algorithms (ISOMAP, LLE), and discusses magnification factors and principal spread directions from the observation space to the intrinsic low-dimensional space. Also the corresponding algorithm is proposed. Experiments show the effectiveness and advantages of the research.

关键词： Learning algorithms

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Role Based Platform Independent Web Application Modeling

Role Based Platform Independent Web Application Modeling

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IEEE International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT)

作者： Chengwan He Wenjie Tu Keqing He State key laboratory of Software Engineering Wuhan University of China China Department of Computer Science and Technology Wuhan Institute of Chemical Technology China

Web application modeling and implementation method are related with middleware platform tightly, and its models usually can’t be reused on different platform. In order to reuse web application models, it is necessary to raise the level of abstraction of models, constructing middleware platform independent models. Roles are meant to capture observable behavioral aspects of objects. Role models describe the set of valid object collaboration tasks. This paper proposes a method for constructing platform independent models for Web applications. It consists of a stepwise process, a template role model and a mapping from role model to class model. The method can improve the reusability of models at different level of abstraction. The paper shows how the method works by a simple example

关键词： Application software Middleware Collaboration Helium Chemical technology Logic Unified modeling language Laboratories software engineering computer science

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Describing Service-Oriented Architecture by Extended Darwin

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Wuhan University Journal of Natural sciences 2005年第6期10卷 971-976页

作者： ZHANG Tao SHEN Mei-e YING Shi YE Peng LIANG Zao-qing State Key Laboratory of Software Engineering Wuhan University Wuhan 430072 Hubei China Computer Department Beijing Information Technology Institute Beijing 100101 China School of Computer Science Wuhan University of Science and Engineering Wuhan 430074 Hubei China

Describing Service-Oriented Architecture （SOA） is critical in the development of Web based system, in this paper, an approach for describing SOA by extended Darwin is proposed. The requirements for describing SOA, which are different from that of ordinary architecture, are highlighted firstly, and then a solution for extending Darwin is presented. Using the extended Darwin, service components and connectors can be described explicit by the extended construct, as well as precise operational semantics of SOA by the π-calculus. Finally an example of supply-chain management system is given for manifesting the effect of the extended Darwin.

关键词： software architecture service-oriented architecture Darwin π-calculus

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