As grid resources are geographically distributed, efficient resource discovery and management has become one of the important requirements. Besides, Grid users are independent identities and negotiation is necessary for reconciling their diverse characteristics. Therefore special mechanism is required to negotiate and discover the required resource or similar resource as an alternative when dis...

Volunteer computing which benefits from idle cycles of volunteer resources over the Internet can integrate the power of hundreds to thousands of resources to achieve high computing power. In such an environment the resources are heterogeneous in terms of CPU speed, RAM, disk capacity, and network bandwidth. So finding a suitable resource to run a particular job becomes difficult. Resource disco...

Recently, approaches to DHT-style key-based routing explicitly designed for the use in mobile ad hoc networks (MANETs) have been proposed. However, as DHTs are usually no applications as such, a very practical distributed application running on top of such mobile DHTs could be resource discovery. Therefore, in this paper, a DHT-based approach to resource discovery – MAPNaS – will be described i...

Mobile cloud computing (MCC) is aimed at integrating mobile devices with cloud computing. It is one of the most important concepts that have emerged in the last few years. Mobile devices, in the traditional agent-client architecture of MCC, only utilize resources in the cloud to enhance their functionalities. However, modern mobile devices have many more resources than before. As a result, rese...

Traditional information retrieval systems return documents in a list where documents are sorted according to their publication dates titles or similarities to the user query Users select interested documents by searching them through the returned list In a distributed environment documents are returned from more than one information server A simple document list is not e cient to present a larg...

The exponential growth of the Internet has resulted in what is known as the resource discovery problem. Although the network makes it possible for users to retrieve enormous amounts of information, it provides insu cient support for locating the speci c information that is needed. Various tools have emerged that either simplify the task of browsing the network or attempt to index all the availa...

As sensor networks mature the current generation of sensor networks that are application-specific and exposed only to a limited set of users will give way to heterogeneous sensor networks that are used dynamically by users that need them. The available sensors are likely to be dynamic (e.g., due to mobility) and heterogeneous in terms of their capabilities and software elements. They may provid...

Large-scale distributed services such as content distribution networks, peer-to-peer storage, distributed games, and scientific applications, have recently received substantial interest from both researchers and industry. At the same time, shared distributed platforms such as PlanetLab [2] and the Grid [6] have become popular environments for evaluating and deploying such applications. Assuming...

Metadata is therefore an important area of research and development, much of it carried out by the library community in conjunction with colleagues working in the cultural heritage sector (primarily archives and museums), research institutions and publishing. UKOLN, the UK Office for Library and Information Networking, has been involved in a number of metadata-based projects and initiatives ove...