SourceForge presents the Xaira project. Xaira is an open source application. SourceForge provides the world's largest selection of Open Source Software. XAIRA (XML Aware Indexing and Retrieval Architecture) supports indexing and analysis of large XML textual resources such as natural language corpora.
M. Möller, S. Regel, and M. Sintek. The Semantic Web: Research and Applications, 6th European Semantic Web Conference, ESWC 2009, Heraklion, Crete, Greece, volume 5554 of Lecture Notes in Computer Science, Springer, Berlin, (2009)