YARS2: A Federated Repository for Querying Graph Structured Data from the Web
A. Harth, J. Umbrich, A. Hogan, and S. Decker. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 211--224. Berlin, Heidelberg, Springer Verlag, (November 2007)
We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from many disparate sources on the Web.
In particular, we study distributed indexing methods for graph-structured data and parallel query evaluation methods on a cluster of computers.
We evaluate the system on a dataset with 430 million statements collected from the Web, and provide scale-up experiments on 7 billion synthetically generated statements.