Supporting service discovery by semantic service specifications is currently an important research area. While the approaches for the annotation of individual services are well researched, determining the semantics of compositions of services remains an open research issue. In this paper, we present an approach to generate the semantics of service compositions from the semantics of the containe...

We demonstrate Web Service Execution Environment (WSMX), a semantic middleware platform for runtime service discovery, mediation and execution, applied to SWS-Challenge scenarios. We show the modelling principles as well as execution aspects of the WSMX semantic technology addressing the real-world requirements.

The number of Web services are growing at an explosive speed, which brings great challenges to the accurate, efficient and automatic retrieval of target services for users. This paper presents a service discovery method with semantic matchmaking which could be used in remote medical systems. Adding ontology related semantic annotations to service interfaces is considered, and a method of servic...

Mobile Grid Service is the extension of Grid Service. It is defined as: it is an intelligent code service wandering in grid nodes to accomplish certain task and provide certain service. Mobile Grid Service provides a series of standard interfaces and conforms specific conventions to solve such problems as: mobile service discovery, dynamic service creation, lifetime management, notification, mo...

Matchmaking has been a subject of research for many years, but the increasing uptake of service-oriented computing, of which the Grid can be seen as a particular instance, has made effective and flexible matchmaking a necessity. Early approaches to matchmaking and current schemes in the Grid community, like ClassAds, take a syntactic point of view, essentially matching up literals or satisfying...

The paper represents current achievements of an ongoing research that aims to develop a formal approach supporting an automatic selection of a Web service sought by a requestor. The approach is based on the matching the requestor’s requirements for a ”useful” service against the service description offered by the provider. We focus on the checking behavioral compatibility between operation cont...

In a distributed service environment, service discovery is a core functionality to locate the desired services. We propose an integrated semantic service discovery approach based on ontology, which provides matching of functional and non-functional properties. Functional properties are described in terms of operations, inputs, outputs, preconditions and effects, while non-functional properties ...

We present in this paper an integrated service discovery framework based on Non-negative Matrix Factorization (NMF). NMF provides an effective means to cluster high-dimensional sparse data with both high clustering accuracy and good interpretability of the clustering result. This makes NMF especially suitable for service community discovery by clustering the Web service description data. Nevert...

We take a broad view that ultimately Gridor Web-services must be located via personalised, semantic-rich discovery processes. We argue that such processes must rely on the storage of arbitrary metadata about services that originates from both service providers and service users. Examples of such metadata are reliability metrics, quality of service data, or semantic service description markup. T...