Title :
The path index for query processing on RDF and RDF schema
Author :
Youn Hee Kim ; Byung Gon Kim ; Jaeho Lee ; Hae Chull Lim
Author_Institution :
Dept. of Comput. Eng., Hong Ik Univ., Seoul
Abstract :
In the semantic Web, metadata and ontology plays important roles for advanced information retrieval systems. A large amount of RDF documents for describing metadata and RDF Schema documents for representing ontology is made available. Therefore, many studies to store and query metadata and ontology in RDF and RDF Schema are required. Unlike XML, RDF and RDF Schema express information resources and semantic associations between resources on the Web. And these documents can be represented based on graph model. To retrieve efficiently RDF data, the schematic information defined by RDF Schema and methods for querying by using path expressions are required. For these necessities, we define query patterns to retrieve RDF data in RDF and RDF Schema. Then for retrieving those query patterns efficiently, we extract path expressions in RDF and RDF Schema graph models and construct indexing structures based on path expressions
Keywords :
database indexing; graph theory; information retrieval systems; meta data; ontologies (artificial intelligence); query processing; semantic Web; RDF Schema; graph model; information resources; information retrieval systems; metadata; ontology; path expression; path index; query processing; semantic Web; Computer science education; Indexing; Information resources; Information retrieval; Ontologies; Query processing; Resource description framework; Semantic Web; Systems engineering education; XML;
Conference_Titel :
Advanced Communication Technology, 2005, ICACT 2005. The 7th International Conference on
Conference_Location :
Phoenix Park
DOI :
10.1109/ICACT.2005.246187
