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Summary: 36 Published by the IEEE Computer Society 1089-7801/07/$25.00 © 2007 IEEE IEEE INTERNET COMPUTING
SemanticKnowledgeManagement
Philippe Cudré-Mauroux,
Suchit Agarwal,
and Karl Aberer
Ecole Polytechnique Fédérale
de Lausanne
GridVine is a semantic overlay infrastructure based on a peer-to-peer (P2P) access
structure. Built following the principle of data independence, it separates a logical
layer -- in which data, schemas, and schema mappings are managed -- from a
physical layer consisting of a structured P2P network supporting decentralized
indexing, key load-balancing, and efficient routing. The system is decentralized, yet
fosters semantic interoperability through pair-wise schema mappings and query
reformulation. GridVine's heterogeneous but semantically related information
sources can be queried transparently using iterative query reformulation. The
authors discuss a reference implementation of the system and several mechanisms
for resolving queries collaboratively.
S
emantic Web technologies are rapid-
ly gaining popularity as a way to
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