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Collaborative filtering recommendation algorithm based on cloud model

Ruan Jian Xue Bao/Journal of software 2007年第10期18卷 2403-2411页

作者： Zhang, Guang-Wei Li, De-Yi Li, Peng Kang, Jian-Chu Chen, Gui-Sheng State Key Laboratory of Software Development Environment Beihang University Beijing 100083 China Institute of Electronic System Engineering Beijing 100840 China Information Security Center Shenzhen Graduate School Harbin Institute of Technology Shenzhen 518055 China School of Computer Science and Technology Shandong Jianzhu University Ji'nan 250101 China

Recommendation system is one of the most important technologies applied in e-commerce. Similarity measuring method is fundamental to collaborative filtering algorithm, and traditional methods are inefficient especially when the user rating data are extremely sparse. Based on the outstanding characteristics of Cloud Model on the process of transforming a qualitative concept to a set of quantitative numerical values, a novel similarity measuring method, namely the likeness comparing method based on cloud model (LICM) is proposed in this paper. LICM compares the similarity of two users on knowledge level, which can overcome the drawback of attributes' strictly matching. This work analysis traditional methods throughly and puts forward a novel collaborative filtering algorithm, which is based on the LICM method. Experiments on typical data set show the excellent performance of the present collaborative filtering algorithm based on LICM, even with extremely sparsity of data.

关键词： Electronic commerce

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Dynamic replica location service supporting data grid systems

Dynamic replica location service supporting data grid system...

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6th IEEE International Conference on computer and Information technology, CIT 2006

作者： Qiwei, Zhang Jiangming, Yang Ning, Gu Yuwei, Zong Zhigang, Ding Shaohua, Zhang Department of Computing and Information Technology Fudan University No.220 Handan Rd. Shanghai 200433 China Shanghai Development Center of Computer Software Technology No.1588 Lianhang Rd. Shanghai 201114 China

ISBN: (纸本)076952687X

Data grid is a kind of wide-area, distributed storage system. It can provide huge storage capacity. There are millions of files in data grid, distributed on hundreds of geographically dispersed storage resources. Given a unique logical identifier for desired content, replica location service can be used to determine the physical locations of one or more copies of this content. It is one of the most important components of data grid. Grid users are dynamic and widely distributed. To provide good performance to all the users, we proposed a design of dynamic replica location service. New replica location service providers can be easily constructed at any time and any location. Users that are away from any of the existing replica location service providers are allowed to construct their own replica location service providers. In this way, good performance can always be achieved. Such design can also enhance the stability of the data grid system and simplify the recovery from replica location service failure. © 2006 IEEE.

关键词： Grid computing

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Dynamic Replica Location Service Supporting Data Grid Systems

Dynamic Replica Location Service Supporting Data Grid System...

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International Conference on computer and Information technology (CIT)

作者： Qiwei Zhang Jiangming Yang Ning Gu Yuwei Zong Zhigang Ding Shaohua Zhang Department of Computing and Information Technology Fudan University Shanghai China Shanghai Development Center of Computer Software Technology Shanghai China

关键词： Distributed computing Grid computing Information technology Stability software Organizing Wide area networks Physics Current distribution

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Management of convergence networks and services: A report on APNOMS 2006

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Journal of Network and Systems Management 2006年第4期14卷 603-608页

作者： Hong, James Won-Ki Kuriyama, Hiroshi Kim, Young-Tak Takano, Makoto Department of Computer Science and Engineering Pohang University of Science and Technology Pohang Korea Republic of Software Development Group Planning Devision Tokyo Japan Department of Information and Communication Engineering Yeungnam University Kyungsan Korea Republic of R and D Center NTT West Osaka Japan

No abstract available

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Learning bayesian networks structures based on memory binary particle swarm optimization

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6th International Conference Simulated Evolution and Learning, SEAL 2006

作者： Li, Xiao-N Wang, Shuang-Cheng He, Xiang-Dong National Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China Department of Information Science Shanghai Lixin University of Commerce Shanghai China China Lixin Risk Management Research Institute Shanghai Lixin University of Commerce Shanghai China Nanjing Research and Development Center ZTE Corporation Nanjing 210012 China

ISBN: (纸本)3540473319

This paper describes a new data mining algorithm to learn Bayesian networks structures based on memory binary particle swarm optimization method and the Minimum Description Length (MDL) principle. An memory binary particle swarm optimization (MBPSO) is proposed. A memory influence is added to a binary particle swarm optimization. The purpose of the added memory feature is to prevent and overcome premature convergence by providing particle specific alternate target points to be used at times instead of the best current position of the particle. In addition, our algorithm, like some previous work, does not need to have a complete variable ordering as input. The experimental results illustrate that our algorithm not only improves the quality of the solutions, but also reduces the time cost. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Learning systems

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Transform from Models to Service Description Based on MDA

Transform from Models to Service Description Based on MDA

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IEEE Asia-Pacific Conference on Services Computing (APSCC)

作者： Bin Yu Chen Zhang Yang Zhao School of Computer Science and Engineering Xidian University Xi'an China Software Engineering Institute Northwest University Xi'an China Shanghai Research & Development Center Neusoft Group Limited Shanghai China

Within MDA framework, system models can be built up on an abstract level that is independent from the platform. Later on, this abstract model can be transmitted into service description, which is related to specific platform on the implementation level. In Web services applications, this transition has a great advantage. Because, while the model of implementation changes from one case to another to fit the different platforms, the model of whole system, on a higher abstract level, stays the same. Thus, the efficiency is promoted. This paper firstly discusses the extension of UML for Web services, and then it presents the modeling process of WSDL. Finally, it gives the rules and arithmetic of transition from models to WSDL documents in detail

关键词： Web services Unified modeling language computer architecture Programming Protocols computer science Arithmetic software engineering Research and development Code standards

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The analysis of reporting tools for a cadastre information system

The analysis of reporting tools for a cadastre information s...

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9th International Conference on Business Information Systems, BIS 2006

作者： Król, Dariusz Oleksy, Jacek Podyma, Malgorzata Trawiński, Bogdan Wroclaw University of Technology Institute of Applied Informatics Wyb. Wyspiańskiego 27 50-370 Wroclaw Poland SIEMENS Software Development Center Strzegomska 52A 53-611 Wroclaw Poland Computer Association of Information BOGART Ltd. Rejtana 9-11 50-015 Wroclaw Poland Wroclaw University of Technology Institute of Applied Informatics Wyb. Wyspia skiego 27 50-370 Wroclaw Poland

The process of selecting and implementing of reporting mechanisms for a cadastre information system is described in the paper from the point of view of system requirements. Many factors as user expectations, report usage, ability of report designing and modifying, possibility of presenting complex data in a readable way, costs and licensing as well as the performance and scalability required have been taken into account. Three versions of reporting mechanisms based on Crystal Reports, Microsoft Reporting Services and XML technology have been implemented and tested.

关键词： Information systems

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Distinguishing between automatic and manual aspects of model driven development

Distinguishing between automatic and manual aspects of model...

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International Conference and Workshop on Engineering of computer-Based Systems

作者： Yucong Duan Yuqing Gu S.C. Cheung Xiaolan Fu Jing Wang Qingwu Hu Institute of Software Chinese Academy of Sciences China Hong Kong University of Science and Technology China Department of Computer and Information Science Towson University USA China Development Center NEC Telecom System China

Manual portion and automatable aspects are often not explicitly differentiated and defined in most model driven software development (MDSD). This may hinder the advancement of the automation level of MDSD with problems such as defining the boundaries of automation tasks, and measuring the workload for model transformations (MT), etc. In common senses, the two parts are not distinguishable because they belong to irrespective subjective and objective conceptual areas respectively. By discussing this issue specifically for MDSD, a conceptual exclusion approach for differentiation based on an extended entity relationship (ER) model is proposed. A conceptual framework called MIB/CSD (manual work, inheritance, behaviorism/cardinality, static, dynamic) to implement the differentiation approach is designed. Feasibility of the differentiation work with regard to UML is discussed in both the theoretical aspect with the extended ER model and the practical aspect with some existing evidences

关键词： Object oriented modeling Erbium Automation Logic Humans Ontologies Psychology Telecommunication computing Information science National electric code

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Component-based integration towards a frequency-regulating home appliance control system

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First International Conference on Embedded software and Systems, ICESS 2004

作者： Tong, Weiqin Luo, Qinghui Yin, Zhijie Zhi, Xiaoli Zong, Yuwei School of Computer Engineering and Science Shanghai University Shanghai China Shanghai Software Technology Development Center Shanghai China

ISBN: (纸本)3540281282

Conventional approaches to embedded software development are very costly, mainly because of their close reliance on application-dependant design, ad-hoc implementation, time-consuming performance tuning and verification. The resulting software is often hard to maintain, upgrade and customize. Component-based integration is an effective method to address the problem. As the result of our effort, an embedded software developing platform is constructed while developing an embedded control system for frequency-regulating home appliances. In this paper, the control system is described, and the developing platform is presented in detail, including an Application Component Library and a Fast Developing Tool. Component-based embedded software design and implementation are also put forward. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Control system analysis

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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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