Author: Graham Laight
Date: 07:22:20 07/19/00
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On July 19, 2000 at 10:10:04, Ed Schröder wrote: >On July 19, 2000 at 08:40:12, Graham Laight wrote: > >>On July 18, 2000 at 18:17:45, Robert Hyatt wrote: >> >>>We have several copies of Junior (and others) running on ICC, including more >>>than one deep junior. I have seen GM players achieve these kinds of attacks >>>in very fast games... Where the GM has little time to think and has to >>>'intuit' everything. And intuit they do... >>> >>>There are many positions search won't solve. There are many positions that >>>evaluation won't solve. There is room for both in a chess engine, and _both_ >>>are important when playing players at the top level of chess... >> >>I don't think that this is proven. >> >>Programmers have historically found that they reap greater dividends with speed >>than they do with knowledge, so they have mainly been going down the speed >>route. > >There is a lot of truth in that. > >>However, if, instead of going down the speed route, the same amount of effort >>and learning had gone into the knowledge route (e.g. learning how to build large >>quantities of knowledge in a systematic and maintainable way), it may be that >>knowledge based programs would now be just as strong as speed based programs. > >If speed (depth) wasn't such dominant we now would have had more intelligent >programs searching 2-3 plies less deep. One might wonder which approach would >be superior in hard elo. My guess is it is search. > >Ed This might be true. On the other hand, it may be that, beyond a certain threshold, adding knowledge increases elo at a faster rate - exponential growth if you like. Even if the growth in ELO as you added knowledge was only arithmetic (= steady) rather than exponential, this would (if it were true...), be better than search, where the growth in ELO rating is, roughly, logarithmic. I think we know a great deal about the effects of adding speed and nodes per second. Unfortunately, I don't think we know so much about adding knowledge to the eval. -g
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