Thanks, John. (01)
> [JFS] Compared to Ferrucci's talks, the PBS Nova program was
> a disappointment. ... (02)
[ppy] I watched the PBS program last night, and think it was *really*
well done (considering the audience they are airing this to.) The only
disappointment (to me, at least) is that the "O" word did not appear
even once. :-) (03)
Congratulations, DaveFerruci and every one on your team! ... and
ChrisWelty, we saw you there too! (04)
Best regards. =ppy
On Thu, Feb 10, 2011 at 8:27 AM, John F. Sowa <sowa@xxxxxxxxxxx> wrote:
> Thanks for the reminder:
>> Dave Ferrucci gave a talk on UIMA (the Unstructured Information
>> Management Architecture) back in May-2006, entitled: "Putting the
>> Semantics in the Semantic Web: An overview of UIMA and its role in
>> Accelerating the Semantic Revolution"
> I recommend that readers compare Ferrucci's talk about UIMA in
> 2006 with his talk about the Watson system and Jeopardy in 2011.
> In less than 5 years, they built Watson on the UIMA foundation,
> which contained a reasonable amount of NLP tools, a modest ontology,
> and some useful tools for knowledge acquisition. During that time,
> they added quite a bit of machine learning, reasoning, statistics,
> and heuristics. But most of all, they added terabytes of documents.
> For the record, following are Ferrucci's slides from 2006:
> Following is the talk that explains the slides:
> And following is his recent talk about the DeepQA project for
> building and extending that foundation for Jeopardy:
> Compared to Ferrucci's talks, the PBS Nova program was a disappointment.
> It didn't get into any technical detail, but it did have a few cameo
> appearances from AI researchers. Terry Winograd and Pat Winston,
> for example, said that the problem of language understanding is hard.
> But I thought that Marvin Minsky and Doug Lenat said more with their
> tone of voice than with their words. My interpretation (which could,
> of course, be wrong) is that both of them were seething with jealousy
> that IBM built a system that was competing with Jeopardy champions
> on national TV -- and without their help.
> In any case, the Watson project shows that terabytes of documents are
> far more important for commonsense reasoning than the millions of
> formal axioms in Cyc. That does not mean that the Cyc ontology is
> useless, but it undermines the original assumptions for the Cyc
> project: commonsense reasoning requires a huge knowledge base
> of hand-coded axioms together with a powerful inference engine.
> An important observation by Ferrucci: The URIs of the Semantic Web
> are *not* useful for processing natural languages -- not for ordinary
> documents, not for scientific documents, and especially not for
> Jeopardy questions:
> 1. For scientific documents, words like 'H2O' are excellent URIs.
> Adding an http address in front of them is pointless.
> 2. A word like 'water', which is sometimes a synonym for 'H2O',
> has an open-ended number of senses and microsenses.
> 3. Even if every microsense could be precisely defined and
> cataloged on the WWW, that wouldn't help determine which
> one is appropriate for any particular context.
> 4. Any attempt to force human being(s) to specify or select
> a precise sense cannot succeed unless *every* human
> understands and consistently selects the correct sense
> at *every* possible occasion.
> 5. Given that point #4 is impossible to enforce and dangerous
> to assume, any software that uses URIs will have to verify
> that the selected sense is appropriate to the context.
> 6. Therefore, URIs found "in the wild" on the WWW can never
> be assumed to be correct unless they have been guaranteed
> to be correct by a trusted source.
> These points taken together imply that annotations on documents
> can't be trusted unless (a) they have been generated by your
> own system or (b) they were generated by a system which is at
> least as trustworthy as your own and which has been verified
> to be 100% compatible with yours.
> In summary, the underlying assumptions for both Cyc and
> the Semantic Web need to be reconsidered.
> John (06)
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