Title :
Optimized index structures for querying RDF from the Web
Author :
Harth, Andreas ; Decker, Stefan
Author_Institution :
Digital Enterprise Res. Inst., Nat. Univ. of Galway, Ireland
fDate :
31 Oct.-2 Nov. 2005
Abstract :
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.
Keywords :
Java; data models; database indexing; query processing; semantic Web; Java; RDF database system; RDF querying; optimized index structures; resource description framework; semantic Web application; Data models; Database systems; Indexes; Indexing; Information retrieval; Java; Memory; Resource description framework; Semantic Web; Vocabulary;
Conference_Titel :
Web Congress, 2005. LA-WEB 2005. Third Latin American
Print_ISBN :
0-7695-2471-0
DOI :
10.1109/LAWEB.2005.25
