Service composition is an important research problem in service computing systems, which combines simple and individual services into composite services to fulfill users’ complex requirements. Service composition usually consists of four stages, i.e., service discovery, candidate selection, service negotiation and task execution. In self-organising systems, there is the fifth stage of service c...

Notwithstanding the advancement of service computing in recent years, service composition is still main issue in this field. In this paper, we present an integrated framework for semantic service composition using answer set programming. Unlike the AI planning approaches of top-down workflow with nested composition and combining composition procedure into service discovery, this proposed framew...

To run a smart E-Business or provide efficient Web service, a web services composition model is needed. Web services composition refers to the process of collaborating the heterogeneous web services. This paper presents a model of web services composition by using Case-Based Reasoning (CBR) techniques. CBR is applied in the process of service discovery, which is the crucial composition process....

Web Service Discovery is the process of finding a suitable Web Service for a given task. A theoretical analysis of ontology-based service composition is proposed in terms of its dependency with service discovery. Web Service composition technique provides the features to users that an individual web service cannot perform. At service composition time, the composition of service depends on the u...

Web service composition is one of the most challenging problems of recent years. The number of service providers is increasing, and along with that for a request they offer multiple services with the same functionality, so it makes the problem of composition quite complex. In this paper we present several methods on service composition. We group them into two categories: methods based on evolut...

Semantic service composition is an important issue in web service based systems. It is about how to build a new, reusable and value-added service by combining existing semantic web services. In this paper we propose a new hyper-graph based method supporting semantic service composition, which model the service composition problem as a hyper-graph. Then the hyper-graph based service composition ...

Autonomic Web service composition has been a challenging topic for some years. The context in which composition takes places determines essential aspects. A context model can provide meaningful composition information for services process composition. An ontology-based approach for context information integration is the basis of a constraint approach to dynamically integrate context validation ...

Performance has been one of the major concerns in Web Services research area. Because of the underneath heterogeneous networks and platforms, service providers do not guarantee the quality level of service negotiated in the contract. Besides, the performance of service composition needs to be assured to adapt dynamic service composition. We proposed a Probebased Web Service composition environm...