ISR News Story
Indexing RDF and Temporal RDF Databases (ISR IP)
ISR intellectual property available to license
Inventors: V.S. Subrahmanian, Octavian Udrea, Andrea Pugilese
Researchers at the University of Maryland have developed a very lightweight indexing mechanism for graph-based RDF queries, among others. The developed index, which is a tree data structure, is called GRIN. The GRIN indexing technique outperforms Jena, Sesame, and RDFBroker graph based queries in at least three areas: answering time, index memory storage, and index building time. The new structure is able to have considerably faster index build times as well as faster query answers because GRIN avoids time-consuming join operations.
For more information
ISR-IP-Subrahmanian ISR-IP-software ISR-IP-databases ISR-IP-datamining
June 23, 2007