My program tends to amplify noise fluctuations. If it's presented with several equally good moves, it will pick winners and losers early on. It looks bad. On the other hand, tweaking it up to win more games against Gnugo and on CGOS, has made it *more* prone to do this. That is my subjective impression anyway.
If you pick a high enough value for your exploration coefficient in UCT, you will get well balanced exploration. I don't recommend it, though. Also, some moves matter more than others. The largest deviations from symmetry occur for moves that aren't in the running anyway (eg. along the edges). Measuring the deviations might be useful. I think it would be risky to just assume they shouldn't be there at all, or that they should vanish in a reasonable timeframe. - Dave Hillis -----Original Message----- From: Heikki Levanto <[EMAIL PROTECTED]> To: computer-go <computer-go@computer-go.org> Sent: Sat, 16 Jun 2007 6:48 am Subject: [computer-go] Opening It seems generally accepted that MC or UCT programs are weakest in the pening. My own experience matches this too. Some times I get the idea hat my program doesn't know at all what it is doing the first few oves. I propose a simple test to see if that is the case. Before doing t, I'd like to hear if other programmers are willing to make a similar est, and agree on the particulars. The idea is simple: We know that the empty board is symmetrical. How any iterations does it take before the program gets values for the irst move that are symmetrical too. For example, if the program prefers he 3-3 point in one corner, but 4-4 in the other corner, then I would ay that it doesn't know much about the situation. I am sure there is a mathematically sound way to measure how symmetric he evaluation is, but my math is a bit rusty, so I am asking if someone an come up with a good way. After that, I'm asking if various rogrammers would be willing to run this test, and publish the results? - Heikki (who has no time to debug his own program...) - eikki Levanto "In Murphy We Turst" heikki (at) lsd (dot) dk _______________________________________________ omputer-go mailing list [EMAIL PROTECTED] ttp://www.computer-go.org/mailman/listinfo/computer-go/ ________________________________________________________________________ Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.
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