2009
![](http://blogmarks.net/screenshots/2009/07/30/62d14e3e776ca6c634a287b66d67f602.jpg)
SIREn: Semantic Information Retrieval Engine
SIREn - Semantic Information Retrieval Engine - a Lucene plugin to overcome these shortcomings and efficiently index and query RDF, as well as any textual document with an arbitrary amount of metadata fields.
2007
1
(4 marks)