TXM Search Engine

Serge Heiden suggests that we look at the CQP (Corpus Query Processor) and its successors which he is using in TXM:

-- Tiger Search : http://www.ims.uni-stuttgart.de/projekte/TIGER/TIGERSearch/
- the corresponding PhD (in german) : http://www.ims.uni-stuttgart.de/projekte/corplex/paper/lezius/diss/
-- NXT Search : http://www.ims.uni-stuttgart.de/projekte/nite/
- related doc and technical papers :
- http://groups.inf.ed.ac.uk/nxt/nxtdoc/docnql.xml
- http://www.ltg.ed.ac.uk/NITE/documents/NiteQL.v2.1.pdf
- http://www.ltg.ed.ac.uk/NITE/papers/NXT-LREJ.web-version.ps

Since we're looking at various interesting models, I don't want to forget the CDL's XTF (eXtensible Text Framework).