> "More knowledge, higher intelligence" is an intuitively attractive
> slogan, but has many problems in it. For example, more knowledge will
> easily lead to combinatorial explosion, and the reasoning system will
> derive many "true" but useless conclusions. How do you deal with that?
That's the problem of forward-chaining without a goal. In fact, the human
mind can easily think of a lot of useless implications in a situation. If
we have a query as a goal, we can use backward-chaining. Otherwise we can
rank the implied sentences into levels of importance. This does not seem to
be a show-stopper.
Backward chaining is just as susceptible to combinatorial explosions
as forward chaining...
And, importance levels need to be context-dependent, so that assigning
them requires sophisticated inference in itself...
Ben
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