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Annual Conference on Communication Networks and Services Research (CNSR)

作者： Hadi Otrok Joey Paquet Mourad Debbabi Prabir Bhattacharya Concordia Institute for Information Systems Engineering Department Computer Security Laboratory Computer Science and Software Engineering Department Concordia University Montreal QUE Canada

In this paper, we study the problem of testing intrusion detection systems (IDS) in mobile ad hoc networks (MANET). Testing is achieved by simulating different measurements. We modify the testing measurements of infrastructure-based networks to be compatible with the characteristics of MANET. Moreover, we add some new features and their associated measurements that we believe important for testing new proposed IDS. The modified measurements with the new added ones form a set of measurements that will be used throughout the testing process. To the best of our knowledge, there has not been any work done for testing IDS in MANET. Simulators are the most common tools used for testing the IDS. Therefore, we add some precautions for choosing a simulator and a list of available simulators. The precautions will help researchers to test the measurements efficiently and the list of simulators will guide them to select one according to their needs. Finally, we present some input parameter precautions that help on having more trustworthy testing results.

关键词： System testing Intrusion detection Mobile ad hoc networks Wireless sensor networks Ad hoc networks software testing Computational modeling Personal digital assistants Wireless networks Monitoring

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Integrated Risk Analysis for a Commercial Computing Service

Integrated Risk Analysis for a Commercial Computing Service

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Chee Shin Yeo Rajkumar Buyya Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne VIC Australia

Utility computing has been anticipated to be the next generation of computing usage. Users have the freedom to easily switch to any commercial computing service to complete jobs whenever the need arises and simply pay only on usage, without any investment costs. A commercial computing service however has certain objectives or goals that it aims to achieve. In this paper, we identify three essential objectives for a commercial computing service: (i) meet SLA, (ii) maintain reliability, and (iii) earn profit. This leads to the problem of whether a resource management policy implemented in the commercial computing service is able to meet the required objectives or not. So, we also develop two evaluation methods that are simple and intuitive: (i) separate and (ii) integrated risk analysis to analyze the effectiveness of resource management policies in achieving the required objectives. Evaluation results based on five policies successfully demonstrate the applicability of separate and integrated risk analysis to assess policies in terms of the required objectives.

关键词： Risk analysis Resource management Grid computing Distributed computing Switches Maintenance Investments Laboratories computer science software engineering

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Aneka: Next-Generation Enterprise Grid Platform for e-science and e-Business Applications

Aneka: Next-Generation Enterprise Grid Platform for e-Scienc...

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IEEE International Conference on e-science and Grid Computing

作者： Xingchen Chu Krishna Nadiminti Chao Jin Srikumar Venugopal Rajkumar Buyya Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

In this paper, we present the design of Aneka, a .NET based service-oriented platform for desktop grid computing that provides: (i) a configurable service container hosting pluggable services for discovering, scheduling and balancing various types of workloads and (ii) a flexible and extensible framework/API supporting various programming models including threading, batch processing, MPI and dataflow. Users and developers can easily use different programming models and the services provided by the container to run their applications over desktop Grids managed by Aneka. We present the implementation of both the essential and advanced services within the platform. We evaluate the system with applications using the grid task and dataflow models on top of the infrastructure and conclude with some future directions of the current system.

关键词： Grid computing Object oriented modeling Containers Personal communication networks Application software Processor scheduling Data security Peer to peer computing Authentication Resource management

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A Dynamic Critical Path Algorithm for Scheduling Scientific Workflow Applications on Global Grids

A Dynamic Critical Path Algorithm for Scheduling Scientific ...

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IEEE International Conference on e-science and Grid Computing

作者： Mustafizur Rahman Srikumar Venugopal Rajkumar Buyya Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

Effective scheduling is a key concern for the execution of performance driven grid applications. In this paper, we propose a dynamic critical path (DCP) based workflow scheduling algorithm that determines efficient mapping of tasks by calculating the critical path in the workflow task graph at every step. It assigns priority to a task in the critical path which is estimated to complete earlier. Using simulation, we have compared the performance of our proposed approach with other existing heuristic and meta-heuristic based scheduling strategies for different type and size of workflows. Our results demonstrate that DCP based approach can generate better schedule for most of the type of workflows irrespective of their size particularly when resource availability changes frequently.

关键词： Heuristic algorithms Scheduling algorithm Dynamic scheduling Processor scheduling Grid computing Application software Availability Electrical capacitance tomography software algorithms Laboratories

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Editorial: Knowledge engineering, semantics, and signal processing in audio - visual information retrieval

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IEEE Transactions on Circuits and systems for Video Technology 2007年第3期17卷 257-258页

作者： Izquierdo, Ebroul Zhang, Jian Sikora, Thomas Huang, Thomas S. Department of Electrical Engineering Queen Mary University of London London El 4NS United Kingdom Sydney Australia School of Computer Science and Engineering University of New South Wales Australia Communication Systems Group Technical University Berlin Berlin Germany ITG University of Illinois at Urbana-Champaign United States Department of Electrical and Computer Engineering Coordinated Science Laboratory United States Image Formation and Processing Group Beckman Institute for Advanced Science and Technology United States Institute's Major Research Theme Human Computer Intelligent Interaction National Academy of Engineering Chinese Academies of Engineering and Sciences China International Association of Pattern Recognition Optical Society of American United States

No abstract available

关键词： Special issues and sections Knowledge engineering Information retrieval Audio-visual systems

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Towards Re-engineering Legacy systems for Assured Dynamic Adaptation

Towards Re-engineering Legacy Systems for Assured Dynamic Ad...

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International Workshop on Modeling in software engineering (MISE)

作者： Ji Zhang Betty H.C. Cheng Software Engineering and Network Systems Laboratory Department of Computer Science and Engineering Michigan State University East Lansing MI USA

Increasingly, software must adapt its behavior in response to changes in the supporting computing, communication infrastructure, and in the surrounding physical environment. Since most existing software was not designed to adapt, research on technique to make legacy software dynamically adaptive has gained increasing interest. Assurance is crucial for adaptive software to fulfill its intended purpose. Correctness is even more critical if it is to be applied in high assurance systems. This paper proposes a model-driven approach to introduce dynamic adaptation to non-adaptive legacy systems while maintaining assurance properties. An aspect-oriented technique is applied to achieve separation of concerns in the implementation.

关键词： software engineering Unified modeling language Adaptive systems Communication system software Physics computing software design software systems Adaptation model Programming computer science

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Authentication in Reprogramming of Sensor Networks for Mote Class Adversaries

Authentication in Reprogramming of Sensor Networks for Mote ...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Limin Wang Sandeep S. Kulkarni Software Engineering and Network Systems Laboratory Department of Computer Science and Engineering Michigan State University East Lansing MI USA

Reprogramming is an essential service for wireless sensor networks. Authenticating reprogramming process is important as sensors need to verify that the code image is truly from a trusted source. There are two ways to achieve authentication: public key based and symmetric key based. Although previous work has shown that public key authentication is feasible on sensor nodes if used sparingly, it is still quite expensive compared to symmetric key based approach. In this paper, we propose a symmetric key based protocol for authenticating reprogramming process. Our protocol is based on the secret instantiation algorithm from, which requires only O(log n) keys to be maintained at each sensor. We integrate this algorithm with the existing reprogramming protocol. Through simulation, we show that it is able to authenticate reprogramming process at very low communication cost, and has very short delay.

关键词： Authentication Protocols Base stations Wireless sensor networks Public key Image sensors Costs Delay Testing Elliptic curve cryptography

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A Framework for using Rough Sets and Formal Concept Analysis in Case Based Reasoning

A Framework for using Rough Sets and Formal Concept Analysis...

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IEEE International Conference on Information Reuse and Integration (IRI)

作者： Jirapond Tadrat Veera Boonjing Puntip Pattaraintakorn Software Systems Engineering Laboratory Department of Mathematics and Computer Science King Mongkut''s Institute of Technology Ladkrabang Bangkok Thailand

A significant open problem of case based reasoning system is a construction of better knowledge base. We propose a new framework for constructing alternative knowledge base in case based reasoning system based on rough sets and formal concept analysis. Our framework first applies rough set theory for discovering reduced cases required in a case based reasoning system. We then achieve further hierarchical structure of knowledge base using formal concept analysis. The result is the concept lattice knowledge base embedded to our proposed case based reasoning system. A part of case based reasoning system is developed with an example throughout. We also discuss how our proposed framework can be beneficial for a case based reasoning system.

关键词： Rough sets Problem-solving Knowledge acquisition Mathematics computer science Lattices Data analysis software systems Knowledge engineering systems engineering and theory

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Distributed routing algorithm for data aggregation in wireless sensor networks

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Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications 2007年第1期30卷 9-13页

作者： Luo, Hong Yang, Fang-Chun Liu, Yong-He Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia Beijing University of Posts and Telecommunications Beijing 100876 China Department of Computer Science and Engineering University of Texas at Arlington Arlington TX 76019 United States

Considering the impact of aggregation cost on the performance of aggregation routes in wireless sensor networks, an aggregation-decision-based distributed routing algorithm for data aggregation is proposed. When source nodes arrive or leave, the algorithm can calculate the aggregation benefit according to data correlation, aggregation cost and transmission cost. Then the algorithm will adaptively make aggregation and routing decisions based on aggregation benefit. Therefore, it can jointly optimize the aggregation and transmission costs and reduce the energy consumption for data gathering. This distributed algorithm makes all decisions only relying on the local information;hence, the routing maintenance cost is limited. Simulation results show that the energy consumption difference between this distributed online algorithm and the previous offline one is within 17% under any network conditions.

关键词： Wireless sensor networks

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Using Model-Driven Development in Time-Constrained Course Projects

Using Model-Driven Development in Time-Constrained Course Pr...

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Conference on software engineering Education & Training (CSEE&T)

作者： Wilson Padua Synergia Systems and Software Engineering Laboratory Computer Science Department Federal University of Minas Gerais Belo Horizonte Minas Gerais Brazil

Educational software development processes, used in course projects, must exercise practices and artifacts comparable to similar industry-level processes, while achieving acceptable productivity and quality, and, at the same time, complying with constraints on available student time. Here, we discuss our experience with a specific model-driven development process, applied in a time-constrained software engineering course. The course projects are developed in iterations, each delivering a subset of the product functions. These, specified as use cases, undergo a sequence of model transformations, until they become tested code. Transformation steps are verified using standardized quality gates (inspections, tests, and audits), which serve three purposes: teaching verification, validation and quality assurance; helping to assess and grade projects; and providing feedback for process improvement. Size, effort and defect data is recorded in standardized reports. Collected data show that the quality gates proved effective to ensure compliance with the prescribed process, and that using a balanced reusable framework is necessary to achieve satisfactory productivity and quality.

关键词： Productivity Testing Programming computer industry Time factors software engineering Inspection Education Quality assurance Feedback

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