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2012 IEEE 19th International Conference on Web Services

24-29 June 2012

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  • [Cover art]

    Publication Year: 2012, Page(s): C4
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  • [Title page i]

    Publication Year: 2012, Page(s): i
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  • [Title page iii]

    Publication Year: 2012, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2012, Page(s): iv
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  • Table of contents

    Publication Year: 2012, Page(s):v - xiv
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  • Message from the General Chairs

    Publication Year: 2012, Page(s): xv
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  • Message from the Research Track Chairs

    Publication Year: 2012, Page(s): xvi
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  • Message from the Applications and Industry Chairs

    Publication Year: 2012, Page(s): xvii
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  • Organizing Committee

    Publication Year: 2012, Page(s):xviii - xix
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  • Program Committee

    Publication Year: 2012, Page(s):xx - xxii
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  • External reviewers

    Publication Year: 2012, Page(s):xxiii - xxiv
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  • IEEE Computer Society Technical Committee on Services Computing

    Publication Year: 2012, Page(s): xxv
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  • Efficient Correlation-Aware Service Selection

    Publication Year: 2012, Page(s):1 - 8
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (477 KB) | HTML iconHTML

    Accounting for quality correlations among web services when performing service composition is essential to obtain more accurate quality estimations of service combinations, thus providing users with better composite solutions. Yet, most current composition approaches fail to address such correlations by assuming independence between services regarding their quality values. In response, this paper ... View full abstract»

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  • Behind the Curtain: Service Selection via Trust in Composite Services

    Publication Year: 2012, Page(s):9 - 16
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB) | HTML iconHTML

    Service selection, where some of the services are accessed indirectly as constituents of composite services, is difficult for the following reasons: (1) the interpretation of service qualities is subjective; (2) evidence must be combined from multiple sources; (3) service profiles change dynamically; and (4) constituent services may be only partially observable behind composite services. We propos... View full abstract»

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  • Trustworthy Web Service Selection Using Probabilistic Models

    Publication Year: 2012, Page(s):17 - 24
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (331 KB) | HTML iconHTML

    Software architectures of large-scale systems are perceptibly shifting towards employing open and distributed computing. Service Oriented Computing (SOC) is a typical example of such environment in which the quality of interactions amongst software agents is a critical concern. Agent-based web services in open and distributed architectures need to interact with each other to achieve their goals an... View full abstract»

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  • Verifying GSM-Based Business Artifacts

    Publication Year: 2012, Page(s):25 - 32
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (343 KB) | HTML iconHTML

    Business artifacts allow to manage operations of business processes by capturing the key concepts and relevant information to guide their work flow. The Guard-Stage- Milestone (GSM) meta-model is a novel formalism for designing business artifacts that features declarative description of the intended behaviour without requiring an explicit specification of the control flow. Its concept of hierarchi... View full abstract»

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  • Dynamic Adaptation of Fragment-Based and Context-Aware Business Processes

    Publication Year: 2012, Page(s):33 - 41
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (925 KB) | HTML iconHTML

    We propose a comprehensive framework for adaptivity of service-based applications, which exploits the concept of process fragments as a way to model reusable process knowledge and to allow for the dynamic, incremental, context-aware composition of such fragments into adaptable service-based applications. The framework provides a set of adaptation mechanisms that, combined through adaptation strate... View full abstract»

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  • Data-centric Web Services Based on Business Artifacts

    Publication Year: 2012, Page(s):42 - 49
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (517 KB) | HTML iconHTML

    Existing Web services standards consider data primarily on the level of inputs and outputs specifications, with the major focus on functional aspects of interactions. Majority of applications rely on data sources, but such data sources are not part of the Web service specifications and cannot be accessed directly by clients. The fact that data are treated independently or as second-class citizens ... View full abstract»

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  • Continuous Query for QoS-Aware Automatic Service Composition

    Publication Year: 2012, Page(s):50 - 57
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB) | HTML iconHTML

    Current QoS-aware automatic service composition queries over a network of Web services are often one-time innature. After a network of Web services is built, such queries are issued once, and answers are found from the scratch. The underlying assumption is that the participating Web services are rather static so that their functional and non-functional parameters seldom change. However, such an as... View full abstract»

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  • Shapley Value Based Impression Propagation for Reputation Management in Web Service Composition

    Publication Year: 2012, Page(s):58 - 65
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    Reputation is useful for establishing trust between Web service (WS) providers and WS consumers. In the context of WS composition, a challenging issue of reputation management is to propagate a user's impression of a composite WS (i.e., the user's feedback rating) to its component WSs. In this paper, we propose a Shapley value based approach which can achieve fair impression propagation, that is, ... View full abstract»

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  • Cost-Driven Optimization of Complex Service-Based Workflows for Stochastic QoS Parameters

    Publication Year: 2012, Page(s):66 - 73
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    The challenge of optimally selecting services from a set of functionally appropriate ones under Quality of Service (QoS) constraints -- the Service Selection Problem -- has been extensively addressed in the literature based on deterministic parameters. In practice, however, Quality of Service QoS parameters rather follow a stochastic distribution. In the work at hand, we present an integrated appr... View full abstract»

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  • An Approach to Forecasting QoS Attributes of Web Services Based on ARIMA and GARCH Models

    Publication Year: 2012, Page(s):74 - 81
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (421 KB) | HTML iconHTML

    Availability of several web services having a similar functionality has led to using quality of service (QoS) attributes to support services selection and management. To improve these operations and be performed proactively, time series ARIMA models have been used to forecast the future QoS values. However, the problem is that in this extremely dynamic context the observed QoS measures are charact... View full abstract»

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  • A Hybrid Diagnosis Approach for QoS Management in Service-Oriented Architecture

    Publication Year: 2012, Page(s):82 - 89
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (498 KB) | HTML iconHTML

    Service flow in SOA systems need to detect quality of service (QoS) problems and to guarantee end-to-end performance. In previous work, we have proposed two faulty service identification methods: a dependency matrix based diagnosis and a Bayesian network based diagnosis. In this paper, we present a hybrid diagnosis to achieve high diagnosis accuracy and low diagnosis cost. The hybrid diagnosis red... View full abstract»

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  • WSP: A Network Coordinate Based Web Service Positioning Framework for Response Time Prediction

    Publication Year: 2012, Page(s):90 - 97
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (446 KB) | HTML iconHTML

    With the rapid growth of Web services in recent years, the optimal service selection from functionally-equivalent service candidates has become more critical for building high quality service-oriented systems. To provide accurate QoSvalues for service selection, user-side QoS prediction thus becomes an important research problem. Although collaborative filtering based prediction approaches have be... View full abstract»

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  • Scaling Spatial Alarm Services on Road Networks

    Publication Year: 2012, Page(s):98 - 105
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (924 KB) | HTML iconHTML

    Spatial alarm services are essential components of many location-based applications. One of the key technical challenges for supporting spatial alarms as a service is performance and scalability. This paper shows that the Euclidean distance-based spatial alarm processing techniques are inadequate for mobile users traveling on road networks due to the high overhead in terms of server load for alarm... View full abstract»

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