Optimized Index Structures for Querying RDF from the Web

Storing and querying Resource Description Framework (RDF) data is one of the basic tasks within any Semantic Web application. A number of storage systems provide assistance for this task. However, current RDF database systems do not use optimized indexes, which results in a poor performance behavior for querying RDF. In this paper we describe optimized index structures for RDF, show how to process and evaluate queries based on the index structure, describe a lightweight adaptable implementation in Java, and provide a performance comparison with existing RDF databases.

• Type: Conference
• Year: 2005
• Where: LAWEB
• Authors: Andreas Harth, Stefan Decker
• Keywords: Human Computer Interaction, Index Structure, Internet Technology, LAWEB 2005, RDF Database Systems, RDF Databases