In industrial, scientific and commercial fields, geographically dispersed large data sets are necessary to be analyzed to get a lot of useful information by using distributed data mining (DDM). However, DDM now confro...
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ISBN:
(纸本)9812565329
In industrial, scientific and commercial fields, geographically dispersed large data sets are necessary to be analyzed to get a lot of useful information by using distributed data mining (DDM). However, DDM now confronts many new challenges such as seamless-cooperation which can not easily be solved on current distributedcomputing environment. As the latest development of distributedcomputing technology, the gird computing may play a key role in solving these challenges. In this paper, the shortcoming of current existing DDM systems is showed, and a service-oriented architecture of DDM on the grid is proposed. The mining algorithm, distributed data sets and computing power are abstracted as web service resource (WS-Resource), which can cooperate to perform DDM as required dynamically. In addition, the paper describes the mining process on the proposed framework in detail.
Multiprocessors, networks of workstations and cluster computers have well served the computational needs of the simulation community by supporting the distributed simulations of larger models. However, the application...
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ISBN:
(纸本)0780385667
Multiprocessors, networks of workstations and cluster computers have well served the computational needs of the simulation community by supporting the distributed simulations of larger models. However, the application of simulation to more complex problems calls for ever more computational power. The emergence of the grid provides an unrivalled opportunity to address this problem and thus facilitate advances in the modelling and the analysis of large-scale systems by harnessing the power of many computers. The aim of this paper is to present a framework for the execution of optimistic distributed discrete event simulations on the grid. A generic architecture is described and a load-balancing scheme is introduced. In the context of a grid-aware TWarp simulation kernel.
Open, standard-based, loosely coupled web services and WSRF services are dynamically discoverable and composable entities, which encapsulate the diverse implementations of physical and software resources in the interf...
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ISBN:
(纸本)076952558X
Open, standard-based, loosely coupled web services and WSRF services are dynamically discoverable and composable entities, which encapsulate the diverse implementations of physical and software resources in the interface that standardizes the business function. Therefore how to integrate these services to generate new value-added services is gaining attentions. In this paper, we present the architecture of ServiceFlow, a system for service composition in our grid platform, and discuss some related issues.
The smart grid incentivizes distributed agents with local generation (e.g., smart homes, and microgrids) to establish multi-agent systems for enhanced reliability and energy consumption efficiency. distributed energy ...
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ISBN:
(纸本)9781728170022
The smart grid incentivizes distributed agents with local generation (e.g., smart homes, and microgrids) to establish multi-agent systems for enhanced reliability and energy consumption efficiency. distributed energy trading has emerged as one of the most important multi-agent systems on the power grid by enabling agents to sell their excessive local energy to each other or back to the grid. However, it requests all the agents to disclose their sensitive data (e.g., each agent's fine-grained local generation and demand load). In this paper, to the best of our knowledge, we propose the first privacy preserving distributed energy trading framework, Private Energy Market (PEM), in which all the agents privately compute an optimal price for their trading (ensured by a Nash Equilibrium), and allocate pairwise energy trading amounts without disclosing sensitive data (via novel cryptographic protocols). Specifically, we model the trading problem as a non-cooperative Stackelberg game for all the agents (i.e., buyers and sellers) to determine the optimal price, and then derive the pairwise trading amounts. Our PEM framework can privately perform all the computations among all the agents without a trusted third party. We prove the privacy, individual rationality, and incentive compatibility for the PEM framework. Finally, we conduct experiments on real datasets to validate the effectiveness and efficiency of the PEM.
Task scheduling is a vital and challenging task in distributedcomputing specially in gridcomputing. The computational grid focuses on large-scale resource sharing. Because of heterogeneous resources in widely distri...
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ISBN:
(纸本)9781424414932
Task scheduling is a vital and challenging task in distributedcomputing specially in gridcomputing. The computational grid focuses on large-scale resource sharing. Because of heterogeneous resources in widely distributed autonomous domains, which makes task scheduling even more challenging. In this paper, a hybrid and general resource algorithm for computational grid, MMOD is presented. MMOD, a general resource scheduling algorithm for computational grid is proposed for task scheduling with time-cost minimization and with maximum resource utilization. The experiments show the performance improvement for applications and better resource utilization by this algorithm raises the user satisfaction and minimizes time as well as cost.
Electric vehicles (EVs) have great potential to reduce dependency on fossil fuels. The recent surge in the development of online EV (OLEV) will help to address the drawbacks associated with current generation EVs, suc...
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ISBN:
(纸本)9781538617915
Electric vehicles (EVs) have great potential to reduce dependency on fossil fuels. The recent surge in the development of online EV (OLEV) will help to address the drawbacks associated with current generation EVs, such as the heavy and expensive batteries. OLEVs are integrated with the smart grid of power infrastructure through a wireless power transfer system (WPT) to increase the driving range of the OLEV. However, the integration of OLEVs with the grid creates a tremendous load for the smart grid. The demand of a power grid changes over time and the price of power is not fixed throughout the day. There should be some congestion avoidance and load balancing policy implications to ensure quality of services for OLEVs. In this paper, first, we conduct an analysis to show the existence of unpredictable power load and congestion because of OLEVs. We use the Simulation for Urban MObility tool and hourly traffic counts of a road section of the New York City to analyze the amount of energy OLEVs can receive at different times of the day. Then, we present a game theory based on a distributed power schedule framework to find the optimal schedule between OLEVs and smart grid. In the proposed framework, OLEVs receive the amount of power charging from the smart grid based on a power payment function which is updated using best response strategy. We prove that the updated power requests converge to the optimal power schedule. In this way, the smart grid maximizes the social welfare of OLEVs, which is defined as mixed consideration of total satisfaction and its power charging cost. Finally, we verify the performance of our proposed pricing policy under different scenarios in a simulation study.
Computational grids that couple geographically distributed resources are becoming the de-facto computing platform for solving large-scale problems in science, engineering, and commerce. Software to enable grid computi...
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ISBN:
(纸本)9781932415698
Computational grids that couple geographically distributed resources are becoming the de-facto computing platform for solving large-scale problems in science, engineering, and commerce. Software to enable gridcomputing has been primarily written for Unix-class operating systems, thus severely limiting the ability to effectively utilize the computing resources of the vast majority of Windows-based desktop computers. Addressing Windows-based gridcomputing is particularly important from the software industry's viewpoint where interest in grids is emerging rapidly. Microsoft's NET Framework has become near-ubiquitous,for implementing commercial distributed systems for Windows-based platforms, positioning it as the ideal platform for gridcomputing in this context. In this paper we present Alchemi, a NET-based framework that provides the runtime machinery and programming environment required to construct enterprise/desktop grids and develop grid applications. It allows flexible application composition by supporting an object-oriented application programming model in addition to a file-based job model. Cross-platform support is provided via a web set-vices interface and a flexible execution model supports dedicated and non-dedicated (voluntary) execution by grid nodes.
gridcomputing has emerged as an effective means of facilitating the sharing of distributed heterogeneous resources, enabling collaboration in large scale environments. However, the nature of grid systems coupled with...
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ISBN:
(纸本)9780769526942
gridcomputing has emerged as an effective means of facilitating the sharing of distributed heterogeneous resources, enabling collaboration in large scale environments. However, the nature of grid systems coupled with the overabundance and fragmentation of information, makes it difficult to monitor resources, services, and computations in order to plan and make decisions. In this paper we present gridscape II, a customisable portal component that can be used on its own or plugged-in to compliment existing grid portals. gridscape II manages the gathering of information from arbitrary, heterogeneous and distributed sources and presents them together seamlessly within a single interface. It also leverages the Google Maps API in order to provide a highly interactive user interface. gridscape II is simple and easy to use, providing a solution to those users who do not wish to invest heavily in developing their own monitoring portal from scratch, and also for those users who want something easy to customise and extend for their specific needs.
Data integrity has to become one of the central concerns of large-scale distributedcomputing systems such as the grid, whose primary products are the results of computation. In order to maintain the integrity of this...
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ISBN:
(纸本)0769521088
Data integrity has to become one of the central concerns of large-scale distributedcomputing systems such as the grid, whose primary products are the results of computation. In order to maintain the integrity of this data, the system must be resilient to diverse attacks and tampering. The system should also encourage positive influences on its integrity in addition to discouraging or eliminating negative ones. In this paper we develop a model of trust for grid participants based on the use of reputation systems and associated feedback mechanisms.
This paper describes the architecture and set-vices developed by the GRANI project for the Australian Nanostructural Analysis Network Organisation (NANO). The aim of GRAM was to provide the NANO community with a scala...
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ISBN:
(纸本)9780769530642
This paper describes the architecture and set-vices developed by the GRANI project for the Australian Nanostructural Analysis Network Organisation (NANO). The aim of GRAM was to provide the NANO community with a scalable, distributed data management solution and a secure collaborative environment to ensure high speed access to and seamless sharing of their data, instruments, analytical services and expertise. A grid-enabled, distributed system was developed that links the major Australian microscopy instruments to an underlying distributed national imagery database, a network of microscopy experts, and image processing and analytical set-vices through an authenticated Web/grid Portal. The aspects that are particularly innovative and that will be described in depth include: The Nano Image Database (NIDB) - An indexed, distributed archive of images captured directly from the advanced instruments and copied to the National Data Facility using gridFTP;Access to APAC's High Performance computing (HPC) facilities and grid environment for high speed file movement, image analysis and 3D reconstruction;Real-time video conferencing and video annotation services to improve support for remote access to advanced microscopy instruments and experts.
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