Author: Dave Gomboc
Date: 14:15:44 10/21/99
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On October 21, 1999 at 15:55:40, Robert Hyatt wrote: >On October 21, 1999 at 14:33:39, Dave Gomboc wrote: > >>On October 21, 1999 at 10:03:22, Chris Carson wrote: >> >>>On October 21, 1999 at 09:03:34, Robert Hyatt wrote: >>>> >>>>I would ignore it. It simply won't work. Ferret and CM are totally different >>>>in their searches. It would be impossible to tune the eval and make the two >>>>programs play the same. Match for a specific set of games? Of course. Match >>>>in real games? not a chance. >>> >>>I agree with Bob. I have CM6K and you can create a personality, but >>>it will not be an exact or close to prediction of future move selection >>>for a given person or program. This is a type of regression technique >>>(known data to predict future events), the error of measure for this would >>>be very large (ie: not very accurate). Just my opinion. :) >>> >>>Best Regards, >>>Chris Carson >> >>The original poster might find another 70 games that weren't in the initial set, >>and compare to see the matching rate with those. >> >>Dave > > >This "approach" is just like tuning a program's eval so it will match the >moves made by a GM. Without understanding why the GM made the moves in the >first place. For a finite set of moves, you can get very accurate matches >using a least-squares approach to fitting. But when you play a _new_ game, >you find just how badly this does. > >Ferret and CM are so different in their search approach and evaluations, that >trying to adjust one to act like the other would be hopeless... An interesting >exercise? probably. But accurate? nope. I didn't say that the "cloning" would work; I suggested a way to test whether it did or not. 70 "new" games that weren't trained upon would immediately show how hopeless (or not hopeless) the exercise was. Also of some relevance is that (IMO) CM is significantly more likely to understand Ferret's moves than pick-your-favorite-GM's moves. This suggests that the degree of hopelessness to imitate Ferret would be smaller than the degree of hopelessness to imitate that GM. :-) Dave
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