A User Constraint Awareness Approach for QoS-Based Service Composition

Wu, Zhihui; Lin, Piyuan; Huang, Peijie; Peng, Huachong; He, Yuqing; Chen, Junan

doi:10.1007/978-3-030-23499-7_4

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…The trust evaluation problem of composite services is a major focus of composite architecture research. It is important to involve trust in Web service composition when generating trustworthy composite Web services [ 48 ]. Yang et al proposed a trust management system based on understanding and trust policies that are built on experience [ 49 ].…”

Section: Related Workmentioning

confidence: 99%

A Comprehensive and Unified Approach to Web Service Trust Evaluation Based on Uncertainty Methodology

Zhang

2022

Entropy

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Web services have the advantage of being able to generate new value-added services based on existing services. To effectively compose Web services, the composition process necessitates that the services that will participate in a given composite service are more trustworthy than those that provide similar functionality. The trust mechanism appears to be a promising way for determining service selection and composition. Existing trust evaluation approaches do not take into account customer expectations. Based on fuzzy set theory and probability theory, this work proposes a unique Web service trust evaluation approach that is notable for its ability to provide personalized service selection based on customer expectations and preferences. The proposed approach defines trust as a fuzzy notion that is related to prior experiences and ratings, and expresses trust in two different forms. This work mainly solves two key issues in Web service trust architectures, bootstrapping trust for the newcomer services and deriving trust for composite services. The proposed approach combines the solutions to numerous issues in a natural way. The case study and approaches comparison demonstrate that the proposed approach is feasible.

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Section: Related Workmentioning

confidence: 99%

A Comprehensive and Unified Approach to Web Service Trust Evaluation Based on Uncertainty Methodology

Zhang

2022

Entropy

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“…However, with the increasing number of services available in the service repository, it is impractical to manually design compositions' workflow. This idea gives rise to the fully-automated WSC where the optimisation and the construction of workflows are performed simultaneously [45,128,151,157,158,159,205]. Different workflow structures can be automatically generated during the composition and services can be selected to achieve optimal QoS.…”

Section: Problem Statementmentioning

confidence: 99%

“…However, this information has been omitted from the current fullyautomated research approaches [10,20,29,30,46,49,54,71,119,134,153,190,192,202,204,205,220,221]. Although those approaches establish various service-oriented workflows, they assume a centralised service environment for the composition, which is unrealistic for WSC and even more unsuitable for distributed DWSC where the location of data and Web services is a fundamental element.…”

Section: Distributed Data-intensive Web Service Compositionmentioning

confidence: 99%

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Distributed Data-intensive Web Service Composition

Sadeghiram¹

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<p>Service-oriented architecture (SOA) encourages the creation of modular applications involving Web services as the reusable components. Data-intensive Web services have emerged to manipulate and deal with the massive data emerged from technological advances and their various applications. Distributed Data-intensive Web Service Composition (DWSC) is a core of SOA, which includes the selection of data-intensive Web services from diverse locations on the network and composes them to accomplish a complicated task. As a fundamental challenge for service developers, service compositions must fulfil functional requirements and optimise Quality of Service (QoS), simultaneously. The QoS of a distributed DWSC is not only impacted by the QoS of component services and how the compositions are generated, but also by the locations of services and data transformation between services. However, existing works often neglect the impact of locations and data on service composition. The distributed DWSC has not been sufficiently studied in the literature. In this thesis, we first define the single-objective distributed DWSC that includes communication (e.g. bandwidth), Web service (execution time) and data (data cost) attributes. To this aim, we consider bandwidth information of communication links obtained using the location information of services. Based on the problem formulation, we then address the distributed DWSC problem by developing EC-based approaches. Those EC-based approaches are designed to incorporate domain-knowledge for effectively solving the distributed DWSC problem. Afterwards, we study the multi-objective distributed DWSC to satisfy different QoS requirements. In particular, the QoS-constrained distributed DWSC problem and user preferences are considered. For finding trade-off solutions for those problems, new Multi-objective Evolutionary Algorithms (MOEAs) are proposed based on the current Non-dominated Sorting Genetic Algorithm-II (NSGA-II). Furthermore, a new problem formulation for the dynamic distributed DWSC (D2−DWSC) problem with bandwidth fluctuations is proposed. An EC-based approach is developed to solve the D2-DWSC. Finally, extensive empirical evaluations are conducted that demonstrate the high performance of our proposed methods in finding composite services with good QoS.</p>

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On the Scalability of Compositions of Service-Oriented Applications

Pozas

Durán

2021

Service-Oriented Computing

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A User Constraint Awareness Approach for QoS-Based Service Composition

Cited by 5 publications

References 23 publications

A Comprehensive and Unified Approach to Web Service Trust Evaluation Based on Uncertainty Methodology

A Comprehensive and Unified Approach to Web Service Trust Evaluation Based on Uncertainty Methodology

Distributed Data-intensive Web Service Composition

On the Scalability of Compositions of Service-Oriented Applications

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