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2009 International Conference on Computational Intelligence and software engineering, CiSE 2009

作者： Si, Huayou Ni, Yulin Yu, Lian Chen, Zhong Software Institute School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Department of Information Engineering Zhejiang Forest University Lin'an 311300 China Key Laboratory of High Confidence Software Technologies Ministry of Education Beijing 100871 China School of Software and Microelectronics Peking University Beijing 102600 China

ISBN: (纸本)9781424445073

In the paper, we analyze the shortages of Service-Oriented Analysis and Design (SOAD) methodologies, and propose a SOAD method based on Use Case approach. Therefore, a service model is designed to facilitate service identification from Use Case script. Moreover, a process is provided as a guideline to aid an analyst to accomplish high-quality service identification with the method. By analyzing basic characteristics and an illustration of the method, we can conclude that the method has several strong points compared to other methods which are based on business process modeling and enterprise architecture. ©2009 IEEE.

关键词： Design

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A service-oriented analysis and design approach based on data flow diagram

A service-oriented analysis and design approach based on dat...

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2009 International Conference on Computational Intelligence and software engineering, CiSE 2009

作者： Zhao, Yun Si, Huayou Ni, Yulin Qi, Hengnian Department of Information Engineering Zhejiang Forest University Lin'an 311300 China Software Institute School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Key Laboratory of High Confidence Software Technologies Ministry of Education Beijing 100871 China School of Software and Microelectronics Peking University Beijing 102600 China

ISBN: (纸本)9781424445073

In the paper, we analyze the shortages of Service-Oriented Analysis and Design (SOAD) methodologies, and then review the features of data flow diagram as a kind of requirement analysis technology. Finally, we propose an SOAD method using DFD diagram. Therefore, a process is provided as a guideline to aid analyst to accomplish high-quality service identification with the method. Through an illustration of the SOAD, we can conclude that the method has several strong points compared to methodologies else based on business process and enterprise architecture. ©2009 IEEE.

关键词： information services

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STOCK TEMPORAL PREDICTION BASED ON TIME SERIES MOTIFS

STOCK TEMPORAL PREDICTION BASED ON TIME SERIES MOTIFS

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2009 International Conference on Machine Learning and Cybernetics(2009机器学习与控制论国际会议)

作者： YU-FENG JIANG CHUN-PING LI JUN-ZHOU HAN Key Laboratory for Information System Security MOE School of Software Tsinghua University Beijing China Institute for Information System and Engineering School of Software Tsinghua University Beiji

Recent researches pay more attention to stock tendency prediction, which various machine learning approaches have been proposed. In this paper, we propose an algorithm to discover self-correlation of stock price in virtue of the notion of time series motifs, by viewing stock price sequences as time series. Generally, time series motif is a pattern appearing frequently in a time sequence, useful to forecast the stock temporal tendencies and prices as a reliable part in time series. In the proposed approach, we firstly search for one part of time series motifs using ordinal comparison and k-NN clustering algorithm, and then attempt to discover the correlation between motifs and subsequences connected behind them. Experimental results demonstrate the positive contribution of time series motifs, the acceptable prediction accuracy, and priority of our algorithm.

关键词： Stock prediction time series motifs self-correlation

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Adapting I/O Parameters of Web Services to Enhance Composition

Adapting I/O Parameters of Web Services to Enhance Compositi...

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International Conference on Next Generation Web Services Practices (NWeSP)

作者： Peter Bartalos Mariá Bielikova Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Slovakia

Web service chaining forms one of the basic operation during Web service composition. To decide whether services can be chained, semantic matching between the I/O is usually evaluated. In this paper we propose an approach considering possible adaptation of output data before it is consumed as input by other service. We also define the corresponding rules based on which it is evaluated if the chaining is possible or not. Moreover, we deal also with the affect on workflow and service description, and their execution.

关键词： Web services Informatics Semantic Web Computational modeling software engineering information technology Research and development Contracts Engines User interfaces

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Semantic Web Service Composition Framework Based on Parallel Processing

Semantic Web Service Composition Framework Based on Parallel...

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IEEE International Conference on E-Commerce Technology Workshops

作者： Peter Bartalos Mária Bielikova Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Slovakia

ISBN: (纸本)9781424446469;9780769537559

The process of semantic Web service composition arranges several Web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes a framework to automatic semantic Web service composition. Its advantage is that a huge amount of computation is performed during preprocessing and the composition approach is designed to exploit the parallel execution of processes which is nowadays supported in multiprocessor platforms. The framework is built to suit the WS Challenge competition requirements.

关键词： Semantic Web Parallel processing Web services Quality of service Data structures Concurrent computing Scalability Informatics Automation Business

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Fast and Scalable Semantic Web Service Composition Approach Considering Complex Pre/Postconditions

Fast and Scalable Semantic Web Service Composition Approach ...

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IEEE World Congress on Services (SERVICES)

作者： Peter Bartalos Maria Bieliková Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Slovakia

The process of semantic web service composition arranges several web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes an approach to automatic semantic web service composition. Its advantage is good scalability regarding the complexity of user constraints and pre/post conditions. Based on these conditions it propagates the value restrictions constraint from the user goal through the overall composite service. The resulting plan depicts all the possible branches of the workflow leading to a goal. This includes the automatic generation of the conditions deciding which branch will be chosen during the execution. Finally, our approach exploits available data which can be used as input parameters for web services. If these are not offered, it searches for a web service producing them.

关键词： Semantic Web Web services Scalability Informatics Automation Crisis management Accidents software engineering information technology Research and development

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A robust estimation of the performance of various vocoders for a novel scheduling algorithm in IEEE 802.16e

A robust estimation of the performance of various vocoders f...

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5th International Conference on Wireless Communication and Sensor Networks, WCSN-2009

作者： Kaarthick, B. Yeshwenth, V.Y. Sudarsan, P.M. Nagarajan, N. Rajeev Sr. Network System Design Center Sri Krishna College of Engineering and Technology Coimbatore India University of Texas Dallas TX United States Coimbatore Institute of Eng. and Information Technology Coimbatore India Wipro Technologies India

ISBN: (纸本)9781424458776

The design of an efficient scheduling mechanism for providing QoS in IEEE 802.16e is usually left to the designers and is a serious challenge for system developers. The performance of various services catered by WiMAX depends on a proper scheduling algorithm combined with a proper mapping and encoding scheme. The contribution of this work is twofold. The first is that we infuse an efficient scheduling algorithm that would provide fair and effective resource allocations to all the Subscriber Stations in the network in different vocoders and determine the best vocoder that is suited for the algorithm. The second contribution of this work is that we provide an effective mapping technique to manage resource allocation to a number of voice CODECS along with the scheduling algorithm. The performance of the vocoders is later analyzed with the algorithm implemented along with the mapping technique. We evaluate the performance of the vocoders based on the following performance metrics: 1. Throughput ***, ***, ***. ©2009 IEEE.

关键词： Scheduling algorithms

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Towards More Effective Support of Service Composition: Utilizing AI-planning, Semantics and User's Assistance

Towards More Effective Support of Service Composition: Utili...

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International Conference on Next Generation Web Services Practices (NWeSP)

作者： Viera Rozinajova Michal Kasan Pavol Navrat Institute of Informatics and Software Engineering Faculty of Informatics and Information Technologies Slovak University of Technology Bratislava Slovakia

There are various approaches to service composition - some of them mainly based on AI planning. Although they offer relatively good results, in some cases they are not sophisticated enough to solve real problems. We identified some problems with automatic composition. Our belief is that the natural way to improve these techniques is to include user into the process of composing services. The goal of this paper is to present a new way of combining AI approaches incorporating also user assistance to create a meaningful plan. We shall also examine benefits of proposed combination. To demonstrate advantages of our approach we designed and implemented system performing Web service composition.

关键词： Web services Artificial intelligence Service oriented architecture information systems software agents Humans Informatics State-space methods software engineering information technology

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Towards a Source-Code Oriented Attestation

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China Communications 2009年第4期6卷 82-87页

作者： Ruan Anbang Shen Qingni Wang Li Qin Chao Gu Liang Chen Zhong School of Software and Microelectronics Peking University Beijing 102600 China Network and Information Security Laboratory Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Key Laboratory of High Confidence Software Technologies of the Ministry of Education Peking University Beijing 100871 China First Research Institute of Ministry of Public Security of China Beijing 100048 China

The Binary-based attestation （BA） mechanism presented by the Trusted Computing Group can equip the application with the capability of genuinely identifying configurations of remote system. However, BA only supports the attestation for specific patterns of binary codes defined by a trusted party, mostly the software vendor, for a particular version of a software. In this paper, we present a Source-Code Oriented Attestation （SCOA） framework to enable custom built application to be attested to in the TCG attestation architecture. In SCOA, security attributes are bond with the source codes of an application instead of its binaries codes. With a proof chain generated by a Trusted Building system to record the building procedure, the challengers can determine whether the binary interacted with is genuinely built from a particular set of source codes. Moreover, with the security attribute certificates assigned to the source codes, they can determine the trustworthiness of the binary. In this paper, we present a TBS implementation with virtualization.

关键词： remote attestation trusted building system virtualization source-code

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An online monitoring approach for Web service requirements

An online monitoring approach for Web service requirements

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作者： Wang, Qianxiang Shao, Jin Deng, Fang Liu, Yonggang Li, Min Han, Jun Mei, Hong Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing 100871 China Netease Corporation Beijing China China Life Insurance Company Beijing China Information and Communication Technologies Swinburne University of Technology John Street Hawthorn VIC 3122 Australia

Web service technology aims to enable the interoperation of heterogeneous systems and the reuse of distributed functions in an unprecedented scale and has achieved significant success. There are still, however, challenges to realize its full potential. One of these challenges is to ensure the behavior of Web services consistent with their requirements. Monitoring events that are relevant to Web service requirements is, thus, an important technique. This paper introduces an online monitoring approach for Web service requirements. It includes a pattern-based specification of service constraints that correspond to service requirements, and a monitoring model that covers five kinds of system events relevant to client request, service response, application, resource, and management, and a monitoring framework in which different probes and agents collect events and data that are sensitive to requirements. The framework analyzes the collected information against the prespecified constraints, so as to evaluate the behavior and use of Web services. The prototype implementation and experiments with a case study shows that our approach is effective and flexible, and the monitoring cost is affordable. © 2008 IEEE.

关键词： Web services

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