GeneGrid is a Grid based bioinformatics project run by BeSC under the UK e-Science program and supported by the UK Department of Trade & Industry(DTI). It is a combined effort with commercial partners Fusion Antibodies and Amtec Medical. GeneGrid provides seamless integration of a myriad of heterogeneous applications and data sets that span multiple administrative domains and location across th...

We study the problem of resource discovery in the Semantic Grid. We show how to solve this problem by utilizing Atlas, a P2P system for the distributed storage and retrieval of RDF(S) data. Atlas is currently under development in project OntoGrid funded by FP6. Atlas is built on top of the distributed hash table Bamboo and supports pull and push querying scenarios. It inherits all the nice feat...

Wide area computer networks offer users a large volume and variety of resources that can help them solve many kinds of daily problems in their work environment. However, the existence, let alone the contribution, of such resources is generally ignored by networkers. This represents a gap in the usability of items available in the network. This work discusses usability issues as perceived in the...

∗[email protected] †National ICT Australia is funded by the Australian Government’s Department of Communications, Information Technology, and the Arts and the Australian Research Council through Backing Australia’s Ability and the ICT Research Centre of Excellence programs. ‡[email protected] C. OWL-based Service Discovery 9 D. SSDS 10 E. VIA 10 F. Splendor 11 G. INS/Twine 11 H. NEV...

Information integration applications, such as mediators or mashups, that require access to information resources currently rely on users manually discovering and integrating them in the application. Manual resource discovery is a slow process, requiring the user to sift through results obtained via keyword-based search. Although search methods have advanced to include evidence from document con...

In this paper we discuss a Peer-to-Peer (P2P) application aimed to improve the discoverability of learning resources distributed typically over different institutions. We investigate JXTASearch, a distributed search engine constructed upon Sun’s open source P2P platform: JXTA, and extend it to enable Dublin Core (DC) meta-data based P2P searching. While the JXTA platform provides the essential ...

Asking someone with experience in a particular eld is a natural way to learn about that eld. For example, students often ask teachers for suggestions for further reading. This paper describes an agent-based information system that explicitly supports such a learning method. Each user is represented in the system by an agent that contains a proole of its user's experiences and scripts that autom...

We describe the architecture of a hypertext resource discovery system using a relational database. Such a system can answer questions that combine page contents, metadata, and hyperlink structure in powerful ways, such as “find the number of links from an environmental protection page to a page about oil and natural gas over the last year.” A key problem in populating the database in such a sys...

Key challenges in wireless mobile ad hoc networks are computational resource constraints, power limitations, and efficient service discovery techniques. The short range radio network technology Bluetooth suffers from long service discovery delays and high power consumption due to necessary connection establishment between discovering and discovered entity. For improving the efficiency of servic...