论文信息 - A Scalable Scheme for Bulk Loading Large RDF Graphs into Oracle

A Scalable Scheme for Bulk Loading Large RDF Graphs into Oracle

The growth of RDF data makes it imperative that an efficient mechanism for bulk-loading RDF graphs be supported. Thus, the paper proposes a bulk-load scheme that allows fast loading of arbitrarily large RDF graphs into a database. Specifically, three modes of load are supported: i) loading into an empty RDF graph, ii) appending to a non-empty RDF graph, and iii) concurrent loads into multiple graphs. The bulk-load scheme is implemented as part of Oracle database semantic technologies and the performance experiments conducted with a variety of RDF graphs (from UniProt and synthesized data of Lehigh University Benchmark) demonstrate the scalability of the approach. The paper outlines the challenges involved in bulk- loading of large RDF graphs, describes the bulk-load scheme, discusses its implementation, and presents a performance study.

[1] Nigel Shadbolt,et al. Resource Description Framework (RDF) , 2009 .

[2] Jeff Heflin,et al. DLDB: Extending Relational Databases to Support Semantic Web Queries , 2003, PSSS.

[3] Vassilis Christophides,et al. The ICS-FORTH RDFSuite: Managing Voluminous RDF Description Bases , 2001, SemWeb.

[4] Ronald L. Rivest,et al. The MD5 Message-Digest Algorithm , 1992, RFC.

[5] Nicholas Gibbins,et al. 3store: Efficient Bulk RDF Storage , 2003, PSSS.

[6] Dan Brickley,et al. Rdf vocabulary description language 1.0 : Rdf schema , 2004 .

[7] Jeff Heflin,et al. LUBM: A benchmark for OWL knowledge base systems , 2005, J. Web Semant..

[8] Tao Liu,et al. RStar: an RDF storage and query system for enterprise resource management , 2004, CIKM '04.

[9] Frank van Harmelen,et al. Sesame: A Generic Architecture for Storing and Querying RDF and RDF Schema , 2002, SEMWEB.

[10] Christof Bornhövd,et al. A generic load/extract utility for data transfer between XML documents and relational databases , 2000, Proceedings Second International Workshop on Advanced Issues of E-Commerce and Web-Based Information Systems. WECWIS 2000.