While i was on vacation, i went down to Columbus for the Ohio Linuxfest
https://ohiolinux.org/
and while most of the panels were geared toward home users and small
installations, at the other end of the spectrum, there were also
representatives from IBM that discussed the Watson computer which
recently won "Jeopardy!".
There was an episode of NOVA titled "Smartest Machine on Earth"
http://video.pbs.org/video/1786674622/
However; the NOVA special didn't mention is that Watson runs Linux as
its OS (Operating System) and uses FOSS (Free Open Source Software)
extensively.
http://www.novell.com/promo/suse/ibm-watson.html
http://ibmsystemsmag.blogs.com/you_and_i/2011/02/ibm-watson-nova-episode-and-a-few-details.html
https://www.ibm.com/blogs/davidian/entry/what_runs_watson_and_why16?lang=en_us
The official IBM terminology for the natural language processing and
search technology is called DeepQA:
http://www.research.ibm.com/deepqa/faq.shtml
which uses Apache UIMA and Hadoop:
http://mail-archives.apache.org/mod_mbox/www-announce/201102.mbox/%3C273680.9076.qm@web30804.mail.mud.yahoo.com%3E