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IF it is really a full-text indexing system,
it scans and infers topics the same way a human
scans and tags. It would require a rule base
perhaps similar to a Schematron assertion engine.
Past attempts made several passes over content
to create a series of tagged documents that are
successively refined. However, as in memory-based
patterning systems, the more abstract the links,
the more opinionated the system. Such systems
can become very superstitious in exactly the same
way people do. How was it phrased: "A schema is
an opinion about a document..."
From: Robert Koberg [mailto:email@example.com]
> Which is why I'd propose defining a full-text schema language,
> so XML content can be described to a full-text search engine.
It does sound very interesting. How would it work? What would it look
like? I have tried doing this with XML Schema but gave up. I had tried
to use annotations to give weight to different things, then I tried to
make a type system. For me, it was just easier to write java to handle
it. Now I write org.xml.sax.ext.DefaultHandler2's that suit my needs. I
know, not very scalable or user friendly.