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This paper describes the design and implementation of Bib-ster, a Peer-to-Peer system for exchanging bibliographic data among researchers. Bibster exploits ontologies in data-storage, query formulation, query-routing and answer presentation: When bibliographic entries are made available for use in Bibster, they are structured and classified according to two(More)
Peer-to-Peer systems are a new paradigm for information sharing and some systems have successfully been deployed. It has been argued that current Peer-to-Peer systems suffer from the lack of semantics. The SWAP project (Semantic Web and Peer-to-Peer) aims at overcoming this problem by combining the Peer-to-Peer paradigm with Semantic Web technologies. In(More)
Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining the destination peer in the first place is not always trivial. We propose a model in which peers advertise their expertise in the Peer-to-Peer network. The knowledge about the expertise of(More)
Many Semantic Web problems are difficult to solve through common divide-and-conquer strategies, since they are hard to partition. We present Marvin, a parallel and distributed platform for processing large amounts of RDF data, on a network of loosely-coupled peers. We present our divide-conquer-swap strategy and show that this model converges towards(More)
The combination of Semantic Web and Peer-to-Peer is highly innovative with prospective benefits to the the individualization of work views as well as to the facilitation of knowledge sharing. SWAP will tackle the challenges brought up by this novel combination such that knowledge finding and sharing is effectively possible.
Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining the destination peer in the first place is not always trivial. We propose a model in which peers advertise their expertise in the Peer-to-Peer network. The knowledge about the expertise of(More)
6.1 Introduction Peer-to-Peer systems are distributed systems without centralized control or hierarchical organization, in which each node runs software with equivalent functionality. A review of the features of recent Peer-to-Peer applications yields a long list: redundant storage, permanence, selection of nearby servers, anonymity, search, authentication,(More)
Similar to the current Web, the key to realizing the Semantic Web is scale. Arguably, to achieve this, we need a good balance between participation cost and perceived benefit. The major obstacles lie in coping with large numbers of ontologies, authors and physical hosts, inconsistent or inaccurate statements and the large volume of instance data. Our focus(More)