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International Conference on Mobile Ubiquitous Computing, systems, Services and Technologies (UBICOMM)

作者： Ruwini Kodikara Christer Ahlund Arkady Zaslavsky Centre for Distributed Systems and Software Engineering Monash University Melbourne Australia Div. of Mobile Networking & Comput. Luled Univ. of Technol. Skellefted

Next generation ubiquitous computing will comprise of context aware adaptive applications and protocols. There is a need of a generic architecture to cater for the adaptation requirements of increasingly demanding real-time applications and increasing dynamic wireless networks. This paper discusses the adaptive approach supported by CA3RM-Com architecture. CA3RM-Com is the context aware architecture proposed for real-time communication in wireless networks. It addresses the context representation, context acquisition, context exchange,and context management. Specific details of the architecture and referring adaptations that CA3RM-Com can support are discussed. Moreover the extended simulation results of adaptive multi-homed Mobile IP are presented in this paper.

关键词： Context-aware services Protocols Computer architecture Throughput Delay Mobile communication Real time systems

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Converting massive TLP to DLP: A special-purpose processor for molecular orbital computations

2007 Computing Frontiers, Conference Proceedings

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2007 Computing Frontiers, Conference Proceedings 2007年 267-276页

作者： Ramdas, Tirath Egan, Gregory K. Abramson, David Baldridge, Kim Center for Telecommunications and Information Engineering Monash University Center for Distributed Systems and Software Engineering Monash University Organic Chemistry Institute University of Zurich

ISBN: (纸本)1595936831

We propose an application specific processor for computational quantum chemistry. The kernel of interest is the computation of electron repulsion integrals (ERIs), which vary in control flow with different input data. This lack of uniformity limits the level of data-level parallelism (DLP) inherent in the application, thus apparently rendering a SIMD architecture unfeasible. All ERIs may be computed in parallel, therefore there is much thread-level parallelism (TLP). We observe that it is possible to match threads with certain characteristics in a manner that reveals significant DLP across multiple threads. Our thread matching and scheduling scheme effectively converts TLP to DLP, allowing SIMD processing which was previously unfeasible. We envision that this approach may expose DLP in other applications traditionally considered to be poor candidates for SIMD computation. Copyright 2007 ACM.

关键词： Program processors

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Congestion avoidance algorithm using extended kalman filter

Congestion avoidance algorithm using extended kalman filter

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2nd International Conference on Convergent Information Technology, ICCIT 07

作者： Kim, Sung-Soo Kang, Yong-Bin Digital Content Research Division ETRI Korea Republic of Centre for Distributed Systems and Software Engineering Monash University Australia

ISBN: (纸本)0769530389

The prediction of traffic congestion is quite an important issue in vehicle navigation to smoothly control traffic flow, and improve the quality of driver's convenience. However, it is not easy to make accurate predictions since traffic change is highly nonlinear and complex dynamic process. First, we present a new traffic prediction algorithm on the basis of the combined knowledge of both the historical and the real-time traffic information. Based on this traffic prediction result, this paper presents a novel routing technique capable of providing intelligent route services completely adequate to dynamic route guidance systems. In our experiments, we have performed the proposed algorithms on two road networks;one of the complex urban areas and the city. Overall, the results of traffic prediction indicate that our prediction algorithms provide more accurate (nearly 90%) traffic information compared with previous traffic prediction solutions. In addition, our implementation of route determination provides the adaptive routes for traffic conditions, as well as scalable routing services for users' preferences. © 2007 IEEE.

关键词： Extended Kalman filters

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Congestion Avoidance Algorithm Using Extended Kalman Filter

Congestion Avoidance Algorithm Using Extended Kalman Filter

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International Conference on Convergence Information Technology

作者： Sung-Soo Kim Yong-Bin Kang Digital Content Research Division Electronics and Telecommunications Research Institute South Korea Centre for Distributed Systems and Software Engineering Monash University Australia

ISBN: (纸本)9781424431779

The prediction of traffic congestion is quite an important issue in vehicle navigation to smoothly control traffic flow, and improve the quality of driver's convenience. However, it is not easy to make accurate predictions since traffic change is highly nonlinear and complex dynamic process. First, we present a new traffic prediction algorithm on the basis of the combined knowledge of both the historical and the real-time traffic information. Based on this traffic prediction result, this paper presents a novel routing technique capable of providing intelligent route services completely adequate to dynamic route guidance systems. In our experiments, we have performed the proposed algorithms on two road networks; one of the complex urban areas and the city. Overall, the results of traffic prediction indicate that our prediction algorithms provide more accurate (nearly 90%) traffic information compared with previous traffic prediction solutions. In addition, our implementation of route determination provides the adaptive routes for traffic conditions, as well as scalable routing services for users' preferences.

关键词： Telecommunication traffic Traffic control Vehicle dynamics Navigation Prediction algorithms Routing Roads Vehicles Prediction methods Shortest path problem

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Merging context perspectives: an approach to adaptive agent reasoning in pervasive computing systems

Merging context perspectives: an approach to adaptive agent ...

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IEEE Annual Conference on Pervasive Computing and Communications Workshops (PerCom)

作者： A. Padovitz A. Zaslavsky S.W. Loke Centre for Distributed Systems and Software Engineering Monash University Australia

In open, heterogeneous, context-aware pervasive computing systems, suitable context models and reasoning approaches are necessary to enable collaboration and distributed reasoning among agents. This paper proposes, develops and demonstrates a novel approach to perform distributed reasoning by merging and partitioning context models that represent different perspectives over the object of reasoning. We show how merging different points of view contributes to an enhanced outcome in reasoning about context

关键词： Merging Pervasive computing Context modeling Solid modeling software engineering Collaborative software Collaborative work Uncertainty Context-aware services Scalability

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Interface faults injection for component-based integration testing

Interface faults injection for component-based integration t...

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International Conference on Computing & Informatics (ICOCI)

作者： Nor Laily Hashim Heinz W. Schmidt Sita Ramakrishnan Centre for Distributed Systems and Software Engineering Monash University Caulfield VIC Australia

This paper presents a simple and improved technique of interface fault insertion for conducting component integration testing through the use of aspect-oriented software development (AOSD). Taking the advantage of aspect's cross-cutting features, this technique only requires additional codes written in AspectJ rather than having a separate tool to perform this operation. These aspect codes act as wrappers around interface services and perform operations such as disabling the implementation of the interface services, raising exceptions or corrupting the inputs and outputs of interface services. Interface faults are inserted into the system under test to evaluate the quality of the test cases by ensuring not only that they detect errors due to the interactions between components, but they are also able to handle exceptions raised when interface faults are triggered.

关键词： software testing software architecture System testing Fault detection Programming Connectors Computer architecture software engineering Australia Assembly

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An Evaluation of Query Languages for Context-Aware Computing

An Evaluation of Query Languages for Context-Aware Computing

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International Workshop on Database and Expert systems Applications

作者： P.D. Haghighi A. Zaslavsky S. Krishnaswamy Center for Distributed Systems and Software Engineering Monash University Australia

Context-awareness highly depends on easy and prompt access to the right information and this needs overcoming challenges of query expression and processing of context information. One of the main considerations in querying context is selecting and applying an appropriate and expressive query language for defining user's context needs. This paper presents an overview of current languages used for querying context and investigates their strengths and limitations in expressing different aspects of context

关键词： Database languages Context-aware services Computational Intelligence Society software engineering Pervasive computing Expert systems Computer languages Relational databases Solids Information systems

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Semantic-based Grid Resource Discovery and its Integration with the Grid Service Broker

Semantic-based Grid Resource Discovery and its Integration w...

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International Conference on Advanced Computing and Communications (ADCOM)

作者： Thamarai Selvi Somasundaram R.A. Balachandar Vijayakumar Kandasamy Rajkumar Buyya Rajagopalan Raman N. Mohanram S. Varun Department of Information Technology Anna University Chennai India Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne VIC Australia Centre for Development of Advanced Computing Chennai India Centre for Development of Advanced Computing Bangalore India

This paper addresses the need of semantic component in the grid environment to discover and describe the grid resources semantically. We propose semantic grid architecture by introducing a knowledge layer at the top of Gridbus broker architecture and thereby enabling broker to discover resources semantically. The semantic component in the knowledge layer enables semantic description of grid resources with the help of ontology template. The ontology template has been created using Protege-OWL editor for different types of computing resources in the grid environment. The Globus Toolkit's MDS is used to gather grid resource information and Protege-OWL libraries are used to dynamically create knowledge base of grid resources. Algernon inference engine is used for interacting with the knowledge base to discover suitable resources.

关键词： distributed computing Ontologies Middleware Computer architecture Computer networks Grid computing Libraries Engines Monitoring Aggregates

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Test order for class-based integration testing of Java applications

Test order for class-based integration testing of Java appli...

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5th International Conference on Quality software, QSIC 2005

作者： Hashim, Nor Laily Schmidt, Heinz W. Ramakrishnan, Sita Centre for Distributed Systems and Software Engineering Monash University 900 Dandenong Road Caulfield Vic. 3145 Australia

ISBN: (纸本)0769524729

This paper presents an improvement to existing class test ordering stategies by including coupling measures to reduce non-determinism and decrease the number of stubs to be produced. Our novel strategy aims to lift the known methods from class hierarchies to component-based product lines in which so-called connectors between components are key entities for structuring, assembling and integrating software architectures, and in which tighter coupling of classes inside components and looser coupling between classes in different components are fundamental to component-based architecture composition. The paper also evaluates the new method and confirms the expected reductions in the number of stubs generated and the improved test ordering. Two recent test order strategies for C++ are compared with our novel approach through experiments conducted on two mini product lines written in Java. The new proposed test ordering strategy is more deterministic through measuring coupling, which is at the heart of component-based product line architectures. © 2005 IEEE.

关键词： Java programming language

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Mining data streams: A review

Mining data streams: A review

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作者： Gaber, Mohamed Medhat Zaslavsky, Arkady Krishnaswamy, Shonali Centre for Distributed Systems and Software Engineering Monash University 900 Dandenong Rd. Caulfield East Vic. 3145 Australia

The recent advances in hardware and software have enabled the capture of different measurements of data in a wide range of fields. These measurements are generated continuously and in a very high fluctuating data rates. Examples include sensor networks, web logs, and computer network traffic. The storage, querying and mining of such data sets are highly computationally challenging tasks. Mining data streams is concerned with extracting knowledge structures represented in models and patterns in non stopping streams of information. The research in data stream mining has gained a high attraction due to the importance of its applications and the increasing generation of streaming information. Applications of data stream analysis can vary from critical scientific and astronomical applications to important business and financial ones. Algorithms, systems and frameworks that address streaming challenges have been developed over the past three years. In this review paper, we present the state-of-the-art in this growing vital field.

关键词： Data mining

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