@article{a8f1c38ebbb94257ba54da65d5a7b1eb,
  title    = "A Metadata Model for Semantics-Based Peer-to-Peer Systems",
  abstract = "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 the course of our investigations it turned out that the nature of Peer-to-Peer systems requires some compromises with respect to the use of semantic knowledge models. In particular, the notion of ontology does not really apply as we often do not find a shared understanding of the domain. In this paper, we propose a data model for encoding semantic information that combines features of ontology (concept hierarchies, relational structures) with a flexible description and rating model that allows us to handle heterogeneous and even contradictory views on the domain of interest. We discuss the role of this model in the SWAP environment and describe the model as well as its creation and access.",
  author   = "Marc Ehrig and Ch. Tempich and Jeen Broekstra and {van Harmelen}, Frank and Marta Sabou and Ronny Siebes and Steffen Staab and Heiner Stuckenschmidt",
  year     = "2003",
  pages    = "1--4",
  journal  = "Proceedings of the second Konferenz Professionelles Wissensmanagement",
}

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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 the course of our investigations it turned out that the nature of Peer-to-Peer systems requires some compromises with respect to the use of semantic knowledge models. In particular, the notion of ontology does not really apply as we often do not find a shared understanding of the domain. In this paper, we propose a data model for encoding semantic information that combines features of ontology (concept hierarchies, relational structures) with a flexible description and rating model that allows us to handle heterogeneous and even contradictory views on the domain of interest. We discuss the role of this model in the SWAP environment and describe the model as well as its creation and access.","author":[{"firstnames":["Marc"],"propositions":[],"lastnames":["Ehrig"],"suffixes":[]},{"firstnames":["Ch."],"propositions":[],"lastnames":["Tempich"],"suffixes":[]},{"firstnames":["Jeen"],"propositions":[],"lastnames":["Broekstra"],"suffixes":[]},{"propositions":["van Harmelen"],"lastnames":[],"firstnames":["Frank"],"suffixes":[]},{"firstnames":["Marta"],"propositions":[],"lastnames":["Sabou"],"suffixes":[]},{"firstnames":["Ronny"],"propositions":[],"lastnames":["Siebes"],"suffixes":[]},{"firstnames":["Steffen"],"propositions":[],"lastnames":["Staab"],"suffixes":[]},{"firstnames":["Heiner"],"propositions":[],"lastnames":["Stuckenschmidt"],"suffixes":[]}],"year":"2003","pages":"1–4","journal":"Proceedings of the second Konferenz Professionelles Wissensmanagement","bibtex":"@article{a8f1c38ebbb94257ba54da65d5a7b1eb,\n title = \"A Metadata Model for Semantics-Based Peer-to-Peer Systems\",\n abstract = \"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 the course of our investigations it turned out that the nature of Peer-to-Peer systems requires some compromises with respect to the use of semantic knowledge models. In particular, the notion of ontology does not really apply as we often do not find a shared understanding of the domain. In this paper, we propose a data model for encoding semantic information that combines features of ontology (concept hierarchies, relational structures) with a flexible description and rating model that allows us to handle heterogeneous and even contradictory views on the domain of interest. We discuss the role of this model in the SWAP environment and describe the model as well as its creation and access.\",\n author = \"Marc Ehrig and Ch. 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