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International Symposium on Intelligent Multimedia, Video and Speech Processing

作者： Meng, S Zhou, YL Zhang, YW Wuyi Univ Inst Informat Sci Jiangmen 529020 Guangdong Peoples R China

ISBN: (纸本)9628576623

In this paper;we presented our work in progress on comporting infrastructure of HMNI (Human-Machine Natural Interaction) research project. In multimodal speech recognition system, various signals and huge amount of data are collected and analyzed simultaneously. To make this hind of task realizable, we developed a practical distributed computing model complying with CORBA (Common Object Request Broker Architecture).

关键词： distributed object management speech recognition natural language interfaces CORBA distributed computing model multimodal speech recognition HMNI Human-Machine Natural Interaction research project Common Object Request Broker Architecture

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A distributed computing model and its application

A distributed computing model and its application

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1st International Conference on Computer Networks and Mobile computing

作者： Li, CL Lu, ZD Li, LY Huazhong Univ Sci & Technol Dept Comp Sci Wuhan 430074 Peoples R China

ISBN: (纸本)0769513816

This paper presents a Java-based distributed computing model for deploying networking system. The proposed model can rais e the level of abstraction for network or distributed system programming, from network protocol level to the object interface level, it provides a mechanism to enable smooth adding, removal, and finding of software components and services on the network. The software components providers use this distributed model to advertise complex descriptions of available or already running services, while clients use the model to compose complex queries for locating these software components. The provider of software components or services needs not agree on network level protocols that allow their software components to interact. In this paper, the framework of the proposed model is described, and the processes for implementing the model are given, which can consists of three processes. The availability and efficiency of the model have been verified by illustrating an example. Finally, some remarks and conclusions are given.

关键词： distributed computing model distributed system programming software component networking system Java

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Study of a distributed computing model for the SuperB experiment

Study of a distributed computing model for the SuperB experi...

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IEEE Nuclear Science Symposium Conference 2009

作者： Fella, Armando Luppi, Eleonora Tomassetti, Luca INFN CNAF Natl Inst Nucl Phys I-40126 Bologna Italy Ferrara Univ Dept Phys I-44100 Ferrara Italy INFN Natl Inst Nucl Phys I-44100 Ferrara Italy

ISBN: (纸本)9781424439614

SuperB is an international enterprise aiming at the construction of a very high luminosity asymmetric e+e- flavor factory. SuperB will be a partner, together with the LHC and eventually the ILC, in searching for new physics. Since the first steps of detector design, the load of computing issues in terms of Monte Carlo algorithm execution requires the exploitation of resources in a full distributed model. The SuperB choice is to build a Grid integrated system identifying both the consolidated and upcoming solutions to accomplish the typical HEP class experiment requirements. The model, moreover, has to be flexible, in order to deal with the rapid technological improvements and the expected long life of the experiment. The in progress design and setup of SuperB distributed computing model is presented including the complete discussion of the Grid services selected for the prototype.

关键词： HEP computing distributed computing model Grid computing

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An adaptive programming model for fault-tolerant distributed computing

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IEEE TRANSACTIONS ON DEPENDABLE AND SECURE computing 2007年第1期4卷 18-31页

作者： Gorender, Sergio Macedo, Raimundo Jose de Araujo Raynal, Michel Univ Fed Bahia Dept Comp Sci Distributed Syst Lab BR-40170110 Salvador BA Brazil Univ Rennes 1 IRISA F-35042 Rennes France

The capability of dynamically adapting to distinct runtime conditions is an important issue when designing distributed systems where negotiated quality of service (QoS) cannot always be delivered between processes. Providing fault tolerance for such dynamic environments is a challenging task. Considering such a context, this paper proposes an adaptive programming model for fault-tolerant distributed computing, which provides upper-layer applications with process state information according to the current system synchrony ( or QoS). The underlying system model is hybrid, composed by a synchronous part ( where there are time bounds on processing speed and message delay) and an asynchronous part ( where there is no time bound). However, such a composition can vary over time, and, in particular, the system may become totally asynchronous ( e. g., when the underlying system QoS degrade) or totally synchronous. Moreover, processes are not required to share the same view of the system synchrony at a given time. To illustrate what can be done in this programming model and how to use it, the consensus problem is taken as a benchmark problem. This paper also presents an implementation of the model that relies on a negotiated quality of service ( QoS) for communication channels.

关键词： adaptability asynchronous/synchronous distributed system consensus distributed computing model fault tolerance quality of service

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A hybrid and adaptive model for fault-tolerant distributed computing

A hybrid and adaptive model for fault-tolerant distributed c...

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International Conference on Dependable Systems and Networks

作者： Gorender, S Macêdo, R Raynal, M Univ Fed Bahia Distributed Syst Lab Dept Comp Sci BR-40170110 Salvador BA Brazil

ISBN: (纸本)0769522823

The capability of dynamically adapting to distinct run-time conditions is an important issue when designing distributed systems where negotiated quality of service (QoS) cannot always be delivered between processes., Providing fault-tolerance for such dynamic environments is a challenging task. Considering such a context, this, paper proposes an adaptive model for fault-tolerant distributed computing. This model encompasses both the synchronous model (where there are time bounds on processing speed and message delay) and the asynchronous model (where there is no time bound). To illustrate what can be done in this model and how to use it, the consensus problem is taken as a benchmark problem. An implementation of the model is also described This implementation relies on a negotiated quality of service (QoS) for channels, that can be timely or untimely. Moreover, the QoS of a channel can be lost during the execution (i.e., dynamically modified from timely to untimely), thereby adding uncertainty into the system.

关键词： adaptability asynchronous/synchronous distributed system consensus distributed computing model fault tolerance quality of service

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Architectural styles for distributed processing systems and practical selection method

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INFORMATION AND SOFTWARE TECHNOLOGY 2002年第8期44卷 459-472页

作者： Morisawa, Y Inoue, K Torii, K Nihon Unisys Ltd Koto Ku Tokyo 1358560 Japan Nara Inst Sci & Technol Grad Sch Informat Sci Ikoma Nara 6300101 Japan Osaka Univ Grad Sch Engn & Sci Toyonaka Osaka 5608531 Japan

The software architecture of a system has influences against various software characteristics of the system such as efficiency, reliability, maintainability, etc. For supporting to design the software architecture, we have developed architectural styles for distributed processing systems. The styles classify the architecture for distributed processing systems into nine categories based on the location of data storage and the type of processing between a client and a server. This paper describes our architectural styles and proposes a simple but practical method to select an appropriate architectural style for developing an application system. The selection method introduces the characterization of architectural styles and the characteristic charts to visualize their characteristics of architectural styles. Next, we propose a method to select an appropriate architectural style using the conformity between characteristic charts of a system and architectural styles. We have verified the applicability of this selection method using our customers' real application systems. (C) 2002 Elsevier Science B.V. All rights reserved.

关键词： architectural style distributed computing model distributed processing system software architecture

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Quality Control in Crowdsourcing Systems Issues and Directions

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IEEE INTERNET computing 2013年第2期17卷 76-81页

作者： Allahbakhsh, Mohammad Benatallah, Boualem Ignjatovic, Aleksandar Motahari-Nezhad, Hamid Reza Bertino, Elisa Dustdar, Schahram Univ New S Wales Sch Comp Sci & Engn Sydney NSW 2052 Australia Univ New S Wales Sydney NSW 2052 Australia Hewlett Packard Labs Palo Alto CA USA Purdue Univ W Lafayette IN 47907 USA Vienna Univ Technol Distributed Syst Grp Inst Informat Syst Vienna Austria

As a new distributed computing model, crowdsourcing lets people leverage the crowd's intelligence and wisdom toward solving problems. This article proposes a framework for characterizing various dimensions of quality control in crowdsourcing systems, a critical issue. The authors briefly review existing quality-control approaches, identify open issues, and look to future research directions.

关键词： crowdsourcing crowdsourcing workflows quality control distributed computing model design year Crowdsource Quality Control Runtime Quality management

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Power and limits of distributed computing shared memory models

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THEORETICAL COMPUTER SCIENCE 2013年 509卷 3-24页

作者： Herlihy, Maurice Rajsbaum, Sergio Raynal, Michel Brown Univ Dept Comp Sci Providence RI 02912 USA Univ Nacl Autonoma Mexico Inst Matemat Mexico City 04510 DF Mexico Univ Rennes 1 IRISA Inst Univ France F-35042 Rennes France

What can and cannot be computed in a distributed system is a complex function of the system's communication model, timing model, and failure model. Considering a canonical distributed system model, where processes execute asynchronously, communicate by reading and writing shared memory, and fail by crashing, this paper surveys important results about computability, and explains the fundamental role that topology plays in the distributed computability theory. The paper also considers different types of additional assumptions that allow impossibility results to be circumvented. These assumptions are known under the names failure detectors and adversaries. Finally, it presents a powerful simulation technique (known under the name BG simulation), which allows to show that, from a computability point of view, t-resilience is not different from wait-freedom. When pieced together, the aim of all the concepts, notions, models, and algorithms presented in the paper, is to provide the reader with a synthetic view of important results on the distributed asynchronous read/write shared-memory model, its power and its limits. (C) 2013 Elsevier B.V. All rights reserved.

关键词： Adversary Agreement Asynchronous system Borowsky-Gafni (BG) simulation Concurrency Crash failure distributed computability distributed computing model Failure detector Fault-tolerance Iterated model Liveness model equivalence Recursion Resilience Shared memory system Snapshot Task Topology Wait-freedom

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Power and limits of distributed computing shared memory models

Power and limits of distributed computing shared memory mode...

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18th International Colloquium on Structural Information and Communication Complexity (SIROCCO)

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Triple-partition Network: Collaborative Neural Network based on the 'End Device-Edge-Cloud'

Triple-partition Network: Collaborative Neural Network based...

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IEEE Wireless Communications and Networking Conference (WCNC)

作者： Gao, Zhipeng Miao, Dong Zhao, Langcheng Mo, Zijia Qi, Guangpeng Yan, Liang Beijing Univ Posts & Telecommun State Key Lab Networking & Switching Technol Beijing Peoples R China Beijing Univ Posts & Telecommun Beijing Key Lab Intelligent Telecommun Software & Beijing Peoples R China Inspur Grp Ltd Jinan 25001 Peoples R China

ISBN: (纸本)9781728195056

The traditional centralized data processing model represented by cloud computing cannot meet the data processing requirements that are gradually tending to the edge. Therefore, a new distributed computing model coordinated by the end devices, edges and cloud has become the main development direction. However, artificial intelligence algorithms that are widely used in cloud-only approach are difficult to embed in resource constrained distributed frameworks. To address this issue, we propose Triple-partition Network, a neural network model augment with three exit points. The structure of three exit points allows to segment the traditional neural network and deploying them on the end devices, edges, and cloud. By setting up suitable exit points through the Entropy Topsis comprehensive evaluation model, part of the data can exit the network in advance to improve the efficiency of computing services. In this experiment, the classic neural networks (Alexnet, Resnet) are used to study the Triple-partition Network on a state-of-art platform and show that trained Triple-partition Network can greatly reduce the end-to-end latency by over 3x while achieving high accuracy.

关键词： Edge computing distributed computing model End device-edge-cloud Exit points Triple-partition Network

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