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The usage of the service selection approaches across different dynamic service provisioning environments has increased the challenges associated with an effective method that can be used to select a relevant service. The use of service selection approach should depend on certain factors. In order to address this challenge, the literature analysis is conducted on various service selection approaches...
Situational awareness supports mission assurance and requires access to archived and real-time information that is most relevant to the mission being performed, the roles of warfighters, and evolving operational scenarios. Information Management (IM) services support the discovery, brokering, and dissemination of past and future information in support of military missions. They decouple information...
In recent years, developing needed software applications via the technique Web Service Composition (WSC) has been more and more popular. Moreover, benefit from the Semantic Web Services (SWSs) technology, it is possible to even automatically conduct WSC, i.e. the Automated Web Service composition (AWSC). Currently the AWSC is a well-studied research subject and which means the existence of a large...
Today, the success of a cloud system significantly relies on its availability and reliability. To achieve a better availability, fault recovery must be performed in an efficient way. When no backup is available, service re-composition becomes the only option. Although many semantic approaches for service re-composition have been proposed, they all seem to be time-consuming, and service granularity...
With the more and more amount of Web Services appears, the quality of services becomes lower and lower. There is a question which must be solved urgently, that is how to compose dynamically the Web Services effectively to satisfy people's demand. Based on describing the disadvantages of the traditional semantic Web Services description module, this paper analyzes the concept, basic elements and categories...
Dynamic composition of services provides the ability to build complex distributed applications at run time by combining existing services, thus coping with a large variety of complex requirements that cannot be met by individual services alone. However, with the increasing amount of available services that differ in granularity (amount of functionality provided) and qualities, selecting the best combination...
This paper presents a Tabu search-based method for selecting the optimal or a near-optimal solution in semantic Web service composition. The proposed method is applied on an Enhanced Planning Graph structure which encodes all the composition solutions that satisfy a user request. The criteria for selecting the optimal solution include the QoS attributes and the semantic similarity between the services...
The increasing interest in developing optimization techniques that provide the optimal or a near-optimal solution of a problem in an efficient way has determined researchers to turn their attention towards biology. It has been noticed that biology offers many clues regarding the design of such optimization techniques, since biological systems exhibit self-optimization and self-organization capabilities...
Composing existing web services into more advanced and complex new services may promote rapid application development, service reuse, and cross-enterprise collaboration. Instead of pre-established relationship between component services in the composition, service oriented computing advocates dynamic discovery, composition and execution of those services according to user requirements. In this paper,...
The composition of distributed resources is a pervasive challenge facing almost all modern application fields, especially for large-scale scientific applications. In most of these applications, several resources need to be integrated in order to fulfill the requirements of a complex scientific task. However, even though current Web Services have emerged as a paradigm for managing complex distributed...
This paper describes a novel solution to Web service composition. The method integrates semantics and agent technology, and service composition is a hierarchical task decomposition process based on domain ontology and behavior-driven patterns. The main steps in the composition process are introduced in detail, which are: (1) an extension of semantics described by extended OWLS ontology. (2). an extended...
Based on an AI enhanced planning graph, this paper presents a new method for semantic Web service composition. The main enhancement focuses on the state layer of planning graph. First, we cluster the state parameters by their semantic in each state layer, then we use a backward indexing method to find the Web services composition chain according to services' QoS(quality of service). Using this method,...
Instead of building self-contained silos, applications are being broken down in independent structures able to offer a scoped service using open communication standards and encoding. Nowadays there is no automatic environment for the construction of new mashups from these reusable services. At the same time the designer of the mashup needs to establish the actual locations for deployment of the different...
This paper presents a new Web service composition method which combines the AI planning graph technique with an immune-inspired algorithm to find the optimal composition solution. Simultaneously with the planning graph construction, a matrix of semantic links is built to store the semantic links established between the services on different layers of the graph. The planning graph and the matrix of...
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