Author: Dann Corbit
Date: 09:59:16 03/10/00
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On March 10, 2000 at 11:50:42, Soren Riis wrote: >I am a mathematician on IM level who only have >done armature work (like testing evaluation >functions etc) in chess programming. > >I would like to hear the expert opinion on the >following questions: > >It is well known that programs which have the same >strength at one time control, might have different >strengths at different time controls. Or equivalently >that two programs relative strength might depend on >the speed of the hardware. > >Q1: What is factors contribute to this? As a mathematician, if you have any computer programming experience, then you are surely aware of O(f(n)) notation. If a program has a superior algorithm, then even if it is a bad implementation, at *some* point, it will dominate a program with an inferior algorithm. This explains why a program might be bad at blitz and good at longer time controls. >Humans players, when compared to programs plays relatively >better with long time controls. While a program increase >its strength by typically 70 rating points when the speed is >doubled, the human (for fast time controls like 5 min) rather >seem to gain 200 rating points when the speed, so to speak, is >doubled (i.e. when the available time is doubled). >This suggest that with slow speed computers also gain much more >than 70 rating points. Is this correct? It's a testable hypothesis, but I won't speculate without data. >Q2: Does very knowledge strong program gain more playing strength >relative to less knowledge strong programs (on slow processors)? This is "a great debate" with proponents on both sides. I don't think we know the answer. >On fast processors knowledge is sometimes even a disadvantage. > >Q3: How does knowledge fare as a function of speed? Define "knowledge" >The questions are a bit vague, but I would like to hear the >expert opinions. Any thoughts? I'm not an expert, but I volunteer my thoughts anyway.
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