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- Message-ID: <CSG-L%92111220123014@VMD.CSO.UIUC.EDU>
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- Date: Thu, 12 Nov 1992 21:07:19 EDT
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- From: "Bill Cunningham, ATCD-G (8" <CUNNINGB@MONROE-EMH1.ARMY.MIL>
- Subject: More on Hamming
- Lines: 46
-
- From Bill Cunningham (921112.2030)
-
- Re John Gabriel (921111.0945), his posts on Hamming distance, Bruce's comment.
-
-
- First, John's intro failed to state the official method for finding the needles
- in haystacks: Process the haystacks through the cattle herd, then study
- the resultant product in great detail. Since that approach is fun, add more
- haystacks and cattle--but never, never, never use a magnet, look for sick cows,
- or even the guy hiding the needles in the first place. You may conclude we
- were not successful. That provides our current motivation.
-
- Comments on Hamming distance are quite in order. Actually, had only considered
- two protagonists--one of whom serves as observer. First, both players have to
- control for communicating--at least for now. A Hamming distance can only be
- defined for the mutually held proposition set. No real progress is possible
- unless both parties agree to make this the union of their respective sets,
- with the disjoint members weighted at zero by one party or the other. How
- do they get this far? First layer of layered protocols should to establish
- the larger set. Subject to error? Sure. Recursive? You bet. But Martin
- Taylor's point that communication is the control of belief applies. The
- recursion should continue until both are satisfied the larger set is mutually
- held. Presumably both parties will continue to test for zero perceived error
- on this point.
-
- Having gone through all this, a Hamming distance can be defined since a
- difference in individual proposition weights is only difference between the
- proposition sets held by the two protagonists.
-
- All of this merely placing a formalism on LPT.
-
- It's not hard to envision (or explain) various intentional and unintentional
- dysfunctional approaches to communication (eg deliberate ambiguity, deception,
- refusal to listen).
-
- John's comment about a row with his boss was stimulated by my observation that
- many disagreements were fueled by failure to generate the union
- set as the first protocol layer. The LPT recursion can deal only with
- the mutual set of propositions. Unfortunately, if each party associates
- these with other (privately held) propositions, each recursion can only
- produce a major error signal to each party. The result: "YOU'RE NOT
- LISTENING TO ME!!" In other words, hidden propositions are downright
- disruptive, whether intentionally hidden or not.
-
- Regards,
- Bill C.
-