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The Earth System Grid Federation (ESGF) is a multi-agency, international collaboration that aims at developing the software infrastructure needed to facilitate and empower the study of climate change on a global scale. The ESGF's architecture employs a system of geographically distributed peer nodes, which are independently administered yet united by the adoption of common federation protocols and...
In this paper, we propose a three-tier framework for Location-Aware Service Provision and Discovery (LASPD), with special emphasis on mobile service provisioning. In the first tier, the world is geographically divided into autonomous areas to facilitate local service administration and management. In the second tier, service providers of an area with adequate computing capability are organized into...
Seaweb is an underwater acoustic wide-area network connecting autonomous, distributed nodes. This paper presents a network discovery process that enables such a field of spontaneously deployed, ad hoc nodes to auto-configure network routes. The process is initialized as nodes in the network are discovered, link distances measured, and optimal routes chosen from among candidate routes according to...
One of the major challenges of Service-Oriented Computing (SoC) paradigm is the Web service discovery, also known as matchmaking. Yet the mechanisms used to match Web services can be improved. However, considering the semantics of the Web service descriptions is a must for automating the process of discovery Web services. Current Web service matchmaking approaches check the capabilities of the requested...
Semantic web services have recently appeared as an enabling technology for the challenging task of automated service discovery and composition. In addition, the growing number of web services demands for distributed discovery mechanisms which do not suffer of the scalability problems of the centralized ones. A framework based on the P2P paradigm to enhance the service discovery process has been designed:...
The incessant growth of the number of Web services (WSs) makes their discovery more difficult. Standard discovery registries, such as UDDI and ebXML, have their own inherent limitations as they only describe the functionality aspect of each WS and not how it relates to others. Capturing the relationships between WSs as they interact with each other can be useful in many ways. In this paper, we present...
In order to avoid the single-point-failure problem in centralized Web service publication and search mechanisms, an alliance-based Web service discovery method for unstructured P2P network was proposed in this paper. A service alliance is composed of web services with same functional properties. By using of the alliance-information-list, service requests could be spread rapidly through out the alliance...
In this paper, an approach to discover Grid resources and to deploy Grid services based on peer-to-peer technologies is presented. It allows finding nodes in a Grid based on flexible queries, and to add or remove nodes to or from groups. An implementation based on the peer to-peer framework FreePastry and the Grid middleware Globus Toolkit 4 is presented. A graphical user interface to visualize the...
Collaborative design is a new technique for mechanical design. Multi-agent system (MAS) can cooperate with others to solve problems by network of software agents. Collaborative design system includes design agent, manage agent, conflict resolution agent and so on. A method based on MAS is present to solve the resource finding among agents. Firstly, the relationship between multi-agent systems and...
The immune cells make fleeting contacts as they constantly roam the body seeking out signs of disease and exchanging information about present dangers. Inspired by this study, we design a web service discovery mechanism on unstructured P2P network. Every peer publishes their services on their local resource list. All the Web services are clustered into alliances according to functional properties...
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