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Advances in mobile Internet technology have enabled the clients of Web services to be able to adjust to context changes, which need to rely on monitoring to QoS of Web services. Most contemporary QoS prediction methods exploit the QoS characteristics for one specific dimension, e.g., time or location, and do not exploit the complicated relations among multi-dimension of context. This paper proposes...
Service computing is a popular development paradigm in information technology. The functional properties of Web services assure correct functionality of cloud applications, while the nonfunctional properties such as reliability might significantly influence the user-perceived availability evaluation. Reliability rankings provide valuable information for making optimal cloud service selection from...
Recent years have witnessed a rapid growth in using Web services for data publishing and sharing among organizations. To improve the efficiency of software development and economize on human and material resources, service reuse is viewed as a powerful means which will not only reuse atomic services, but also reuse arbitrary granularities of Service Process Fragments (SPFs). However, effectively reusing...
QoS prediction is critical to Web service selection and recommendation. This paper proposes a collaborative approach to quality-of-service (QoS) prediction of web services on unbalanced data distribution by utilizing the past usage history of service users. It avoids expensive and time-consuming web service invocations. There existed several methods which search top-k similar users or services in...
Service semantic annotation is advancing quickly in recent years. However, the task of yielding semantics knowledge becomes a bottleneck of semantic annotation. In this paper, we present a new method for extracting tags from WSDL files and mining semantic relationships between tags. It is foundation of building ontology, which can be used to annotate web service. Core tags of domain are extracted,...
Currently there exist many kinds of semantic Web Service models on the internet. They are heterogeneous so that it is hard to understand and interoperate each other. In this paper, we study several mainstream semantic Web Service models, and extract meta-models for each from the perspective of semantic Web Service discovery. Based on this, we propose the universal meta-model for semantic Web Service...
Ontology plays a key role in Semantic Web Service Registry (SWSR) which will add semantic information to web service. There exist some cases that users use different ontologies in the same domain to annotate web service. Therefore in this paper we present an approach to effectively manage the ontologies in SWSR based on ISO SC32 19763-3: MFI-3 (Metamodel Framework for Interoperability: Metamodel for...
This paper presents the framework to support the interoperability among different Web Service Registries (WSRs). The current degree of interoperability, which is now at the syntax level, cannot ensure the cooperation among WSRs. Therefore, it is important to enhance the degree of interoperability for improving the flexibility among WSRs. As a solution to the problem of interoperability, we rely on...
Networked software is a complex software system deployed on network environment. Web services are the essential components of Networked software, and reuse in this granularity is especially significant. In this paper, we propose a domain modeling framework for Networked software named O-RGPS, which is a layered network including five layers. O-RGPS models the common requirements of a family of systems,...
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