Hi Kingsley --
As far as I understand it, there is a SQL-DB2 database underneath
Watson, populated by running heuristics over a huge amount of
unstructured data, such as free English text. (List folks, please
correct me if this wrong.)
You can have a multi model DBMS that supports Relational Tables and
Relational Property Graphs. We do that in Virtuoso and I don't see
why IBM won't have something similar re. DB2 (in some capacity).
If Watson is running on a pure Relational Tables DBMS, It just
wouldn't have the Contextual Coherence that enabled it answer
questions in the time required for effective participation in
Jeopardy.
So, Executable English could produce English explanations of
answers, but the explanations would stop at the SQL level. That
is, there would be no explanation of what the heuristics had done.
One could of course consider rewriting those heuristics from Java
or whatever into Executable English, so that reliable explanations
could reach deeper.
Chris Welty (and his colleagues) will soon explain (in technical
detail) how this whole thing came together. It's about combined use
of best tools for the Job. Take out one component, and the whole
thing falls apart. IBM have basically demonstrated the benefits of
loosely coupling complimentary components, rather that taking the
flawed "one size fits all" approach :-)
Kingsley
Cheers, -- Adrian
Internet Business Logic
A Wiki and SOA Endpoint for Executable Open Vocabulary English Q/A
over SQL and RDF
Online at www.reengineeringllc.com
Shared use is free, and there are no advertisements
Adrian Walker
Reengineering
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Regards,
Kingsley Idehen
President & CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
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