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- Path: sparky!uunet!olivea!spool.mu.edu!darwin.sura.net!paladin.american.edu!auvm!EID.ANL.GOV!GABRIEL
- From: gabriel@EID.ANL.GOV (John Gabriel)
- Newsgroups: bit.listserv.csg-l
- Subject: Re: Last thoughts; Auf Wiedersehen
- Message-ID: <9212211500.AA18333@athens.eid.anl.gov>
- Date: 21 Dec 92 15:00:05 GMT
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- Lines: 23
- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
-
- Thankyou Bill. I read yr previous post before this one. Let's keep in
- touch. My reply to previous is dead serious. I shall always have
- an enormous respect and admiration for what you have done.
-
- You are absolutely right about minimisation and control being
- interchangeable. That's all a minimisation system is - a control
- system trying to make an objective function as small as possible.
-
- The only things that give you trouble in going to a continuous
- control model are those cases, like Kanerva, where dist(P,R)
- does not have derivatives. And for those you need a control
- system that hops from point to point, instead of gliding
- smmothly along its' (as Bill C would say) "preordained" path.
-
- But none of these things matter. YOU were there first, and all that
- I'm doing is a little bit of mathematician's nitpickery.
-
- We do have different world views and perceptual histories. I
- always look for abstraction, and you most of the time, look
- for concrete examples and machinery. Doesn't matter, we are
- both necessary parts of the ecology.
-
- John
-