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IEEE Global Conference on Signal and Information Processing (GlobalSIP)

作者： Ibrahim Al-Shyoukh Georgios Chasparis Jeff S. Shamma Georgia Institute of Technology Atlanta GA US Department of Data Analysis Systems Software Competence Center Hagenberg GmbH Hagenberg Austria CEMSE Division King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA

ISBN: (纸本)9781479970896

Network coevolution, the process of network topology evolution in feedback with dynamical processes over the network nodes, is a common feature of many engineered and natural networks. In such settings, the change in network topology occurs at a comparable time scale to nodal dynamics. Coevolutionary modeling offers the possibility to better understand how and why network structures emerge. For example, social networks can exhibit a variety of structures, ranging from almost uniform to scale-free degree distributions. While current models of network formation can reproduce these structures, coevolutionary modeling can offer a better understanding of the underlying dynamics. This paper presents an overview of recent work on coevolutionary models of network formation, with an emphasis on the following three settings: (i) dynamic flow of benefits and costs, (ii) transient link establishment costs, and (iii) latent preferential attachment.

关键词： Network topology Biological system modeling Economics Topology Nash equilibrium Educational institutions Cost function

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Scribbler: From collaborative sketching to formal domain specific models and back again

Scribbler: From collaborative sketching to formal domain spe...

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Joint of MODELS 2013 Invited Talks, Demonstration Session, Poster Session, and ACM Student Research Competition, MODELS-JP 2013 - Co-located with the 16th International Conference on Model Driven engineering languages and systems, MODELS 2013

作者： Vogel, Martin Warnecke, Tim Bartelt, Christian University of Clausthal Department for Computer Science - Software Systems Engineering Julius-Albert-Str. 4 Clausthal-Zellerfeld38678 Germany

Most of the time developers make extensive use of software tools in a software development process to support them in their day-to-day work. One of the first and most important phases of this process is the design phase, but within this phase intuitive and easy to use tools, which support the creative but also collaborative workflow (parallel/distributed), are missing. At the moment, developers use whiteboards to express their ideas in team meetings. Subsequently a coworker takes a picture of the sketches and remodels them with a modeling tool. That procedure is very inconvenient, error-prone and hindering in a creative modeling cycle. For overcoming this ineffective process this paper shows a new software tool using digital whiteboards to transform free hand sketches in formal models and back again during modeling in a distributed team. The transformation is completely independent from a pre-defined modeling language. The tool provides also a training mode to learn new graphical syntax elements and map these to formal metamodel entities. Video: https://***/watch?v=0i3M9djPrRM [Mirror: http://***/***?cID=3611].

关键词： Modeling languages

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A novel round robin tournament scheduling algorithm based on divide and conquer approach

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Journal of Computational Information systems 2013年第21期9卷 8603-8609页

作者： Li, Jianyong Huang, Daoying Li, Yifeng Bing, Chu Han, Bing School of Computer and Communication Engineering Zhengzhou University of Light Industry Zhengzhou 450000 China Zhengzhou Foreign Language School Zhengzhou 450000 China Department of Electronics and Computer Science University of Southampton Southampton United Kingdom School of Software Beijing Institute of Technology Beijing 100000 China

The round robin tournament scheduling problem widely exists in the computer science and communication area. In this paper, we propose a novel round robin tournament scheduling algorithm under arbitrary entrants by the means of divide and conquer approach. First, we transform the original non-2k entrant tournament scheduling problem to its equivalent problem with even entrants, by which we can tackle the intersection term of the different element problems during the division and combination procedure. Then we show that there exists a solution to the arbitrary entrant round robin scheduling problem and propose a scheduling algorithm correspondingly. Numerical example is proposed to demonstrate the effectiveness of the algorithm. © 2013 Binary Information Press.

关键词： Scheduling algorithms

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Resolving vulnerability identification errors using security requirements on business process models

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Information Management and computer Security 2013年第3期21卷 202-223页

作者： Taubenberger, Stefan Jürjens, Jan Yu, Yijun Nuseibeh, Bashar Computing Department Open University Milton Keynes United Kingdom Department of Computer Science Technical University Dortmund Dortmund Germany Fraunhofer Institute for Software Systems Engineering ISST Dortmund Germany Lero the Irish Software Engineering Research Centre Computing Department University of Limerick Limerick Ireland Open University Milton Keynes United Kingdom

Purpose - In any information security risk assessment, vulnerabilities are usually identified by information-gathering techniques. However, vulnerability identification errors - wrongly identified or unidentified vulnerabilities - can occur as uncertain data are used. Furthermore, businesses' security needs are not considered sufficiently. Hence, security functions may not protect business assets sufficiently and cost-effectively. This paper aims to resolve vulnerability errors by analysing the security requirements of information assets in business process models. Design/methodology/approach - Business process models have been selected for use, because there is a close relationship between business process objectives and risks. Security functions are evaluated in terms of the information flow of business processes regarding their security requirements. The claim that vulnerability errors can be resolved was validated by comparing the results of a current risk assessment approach with the proposed approach. The comparison is conducted both at three entities of an insurance company, as well as through a controlled experiment within a survey among security professionals. Findings - Vulnerability identification errors can be resolved by explicitly evaluating security requirements in the course of business;this is not considered in current assessment methods. Originality/value - It is shown that vulnerability identification errors occur in practice. With the explicit evaluation of security requirements, identification errors can be resolved. Risk assessment methods should consider the explicit evaluation of security requirements. Copyright © 2013 Emerald Group Publishing Limited. All rights reserved.

关键词： Risk assessment

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CBADE: Hybrid approach for duplication detection and elimination 1

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4th International Conference on Networks and Communications, NetCom 2012

作者： Anny Leema, A. Sudhakar, P. Hemalatha, M. Karpagam University Coimbatore India Department of Computer Science and Engineering M. Kumarasamy College of Engineering karur India Department of Software Systems Karpagam University Coimbatore India

ISBN: (数字)9781461461548

ISBN: (纸本)9781461461531

Radio Frequency Identification (RFID) is an automatic data capturing technology and the dirty data stream generated by the RFID readers is one of the main factor limit the widespread adoption of RFID technology. In order to provide reliable data to RFID application, it is necessary to clean the collected data before they are subjected to warehousing. In this paper we are going to construct the elegant hospital environment using RFID and developed the cellular based approach algorithm to clean the duplication anomaly. First middleware approach is applied to deal with low complex anomalies and in next stage deferred approach is followed to deal with high complex anomalies based on business context. Simulation shows our cleansing approach for duplication removal deals with RFID data more accurately and efficiently. Thus we can bring down the health care costs, optimize business processes, streamline patient identification processes and improve patient safety. © 2013 Springer science+Business Media.

关键词： Middleware

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Service matching under consideration of explicitly specified service variants

Service matching under consideration of explicitly specified...

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2013 IEEE 20th International Conference on Web Services, ICWS 2013

作者： Platenius, Marie Christin Von Detten, Markus Schäfer, Wilhelm Gerth, Christian Engels, Gregor Software Engineering Group Heinz Nixdorf Institute University of Paderborn Germany Database and Information Systems Department of Computer Science University of Paderborn Germany

ISBN: (纸本)9780768550251

One of the main ideas of Service-Oriented Computing (SOC) is the delivery of flexibly composable services provided on world-wide markets. For a successful service discovery, service requests have to be matched with the available service offers. However, in a situation in which no service that completely matches the request can be discovered, the customer may tolerate slight discrepancies between request and offer. Some existing fuzzy matching approaches are able to detect such service variants, but they do not allow to explicitly specify which parts of a request are not mandatory. In this paper, we improve an existing service matching approach based on Visual Contracts leveraging our preliminary work of design pattern detection. Thereby, we support explicit specifications of service variants and realize gradual matching results that can be ranked in order to discover the service offer that matches a customer's request best. © 2013 IEEE.

关键词： Pattern recognition

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A survey of fuzzy service matching approaches in the context of on-the-fly computing 13

A survey of fuzzy service matching approaches in the context...

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16th ACM SIGSOFT Symposium on Component Based software engineering, CBSE 2013

作者： Platenius, Marie C. Von Detten, Markus Becker, Steffen Schäfer, Wilhelm Engels, Gregor Software Engineering Group Heinz Nixdorf Institute University of Paderborn Germany Database and Information Systems Department of Computer Science University of Paderborn Germany

ISBN: (纸本)9781450321228

In the last decades, development turned from monolithic software products towards more flexible software components that can be provided on world-wide markets in form of services. Customers request such services or compositions of several services. However, in many cases, discovering the best services to address a given request is a tough challenge and requires expressive, gradual matching results, considering different aspects of a service description, e.g., in-puts/ouputs, protocols, or quality properties. Furthermore, in situations in which no service exactly satisfies the request, approximate matching which can deal with a certain amount of fuzziness becomes necessary. There is a wealth of service matching approaches, but it is not clear whether there is a comprehensive, fuzzy matching approach which addresses all these challenges. Although there are a few service matching surveys, none of them is able to answer this question. In this paper, we perform a systematic literature survey of 35 (out of 504) service matching approaches which consider fuzzy matching. Based on this survey, we propose a classification, discuss how different matching approaches can be combined into a comprehensive matching method, and identify future research challenges. Copyright 2013 ACM.

关键词： Surveys

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An evaluation framework for software crowdsourcing

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Frontiers of computer science 2013年第5期7卷 694-709页

作者： Wenjun WU Wei-Tek TSAI Wei LI State Key Laboratory of Software Development Environment Beihang University Beijing 100191 China School of Computing Informatics and Decision Systems Engineering Arizona State University Tempe AZ85281 USA Department of Computer Science and Technology INLIST Tsinghua University Beijing 100084 China

Recently software crowdsourcing has become an emerging area of software engineering. Few papers have pre- sented a systematic analysis on the practices of software crowdsourcing. This paper first presents an evaluation frame- work to evaluate software crowdsourcing projects with re- spect to software quality, costs, diversity of solutions, and competition nature in crowdsourcing. Specifically, competi- tions are evaluated by the min-max relationship from game theory among participants where one party tries to minimize an objective function while the other party tries to maximize the same objective function. The paper then defines a game theory model to analyze the primary factors in these min- max competition rules that affect the nature of participation as well as the software quality. Finally, using the proposed eval- uation framework, this paper illustrates two crowdsourcing processes, Harvard-TopCoder and AppStori. The framework demonstrates the sharp contrasts between both crowdsourc- ing processes as participants will have drastic behaviors in engaging these two projects.

关键词： crowdsourcing software engineering competi-tion rules game theory

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Robust H_∞ Consensus Control of Uncertain Multi-Agent systems with Nonlinear Dynamics and Time-Varying Delays

Robust H_∞ Consensus Control of Uncertain Multi-Agent Syste...

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American Control Conference

作者： Ping Wang Yingmin Jia Junping Du Jun Zhang Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electronic and Information Engineering Beihang University (BUAA) Beijing 100191 China

ISBN: (纸本)9781479932757

This paper is concerned with the H_∞ consensus control problem in undirected networks of autonomous agents with nonlinear dynamics, subject to parameter uncertainties and external disturbances. With the consideration of time-varying delays arising from communication among agents, a distributed protocol is proposed using the local delayed state information. Then, by defining an appropriate controlled output function, the consensus problem under the proposed protocol is converted into an H_∞ control problem. Based on robust H_∞ theory, sufficient conditions are derived to make all agents achieve consensus with desired H_∞ performance. Moreover, the feedback matrix in the proposed protocol is determined by solving two linear matrix inequalities (LMIs) with the same dimensions as a single agent. Finally, a numerical simulation is provided to demonstrate the effectiveness of our theoretical results.

关键词： Multi-agent systems Protocols Nonlinear dynamical systems Uncertain systems Linear matrix inequalities Robustness Delay effects

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Output feedback tracking control for spacecraft relative translation subject to input constraints and partial loss of control effectiveness

Output feedback tracking control for spacecraft relative tra...

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American Control Conference

作者： Lin Zhao Yingmin Jia Junping Du Jun Zhang Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electronic and Information Engineering Beihang University (BUAA) Beijing 100191 China

ISBN: (纸本)9781479932757

In this paper, an adaptive output feedback tracking control scheme is proposed for spacecraft formation flying (SFF) in the presence of external disturbances, uncertain system parameters, input constraints and partial loss of control effectiveness. The proposed controller incorporates a pseudo-velocity filter to account for the unmeasured relative velocity, and the neural network (NN) technique is implemented to approximate the desired nonlinear function and bounded external disturbances. In order to guarantee that the output of the NN used in the controller is bounded by the corresponding bound of the approximated nonlinear function, a switch function is employed to generate a switching between the adaptive NN control and the robust controller. Moreover, a fault tolerant part is included in the controller to compensate the partial loss of actuator effectiveness fault. It is shown that the derived controller not only guarantees the tracking error in the closed-loop system to be uniformly ultimately bounded (UUB) but also ensures the control input can rigorously enforce actuator magnitude constraints. Simulation results are provided to demonstrate the effectiveness of the proposed method.

关键词： SFF UUB NN

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