It is a very nice graph. I wish we could see the next 11 doublings.
Don Dailey wrote:
I found the graph, but I can't find the data and the details, although
it will be on one of the postings. I think this was at least a year
ago, perhaps 2.
Here is what I remember:
I played 11 different levels, each a doubling of the previous. The
weakest level I think was just 1024 play-outs. I ran the study for
weeks in order to get substantial data points even from the highest
levels. The highest level, took a significant time to play a single
game, several times longer than the CGOS time control which was 10
minutes at the time.
The conditions were CGOS 9x9 conditions - komi 7.5, and so on, just
like CGOS 9x9.
I actually tested 2 basic versions, one with heavy play-outs and one
with light play-outs. The light play-out version basically plays
random games.
Both programs were reasonably strong UCT programs - versions of Lazarus
which probably would play at least 2100 strength on my current computer
on the current 5 minute server.
See if this link works to see the graph:
http://greencheeks.homelinux.org:8015/~drd/study.jpg
The X axis represents the number of doublings and ELO ratings are on the
Y axis.
- Don
Michael Williams wrote:
Don Dailey wrote:
Mark,
I wasn't stating a precise value for a doubling when I said 100
ELO. But it appears that it is actually worth a bit more than 100
ELO for a
doubling. I did a massive study of this at one point a year or
more ago with thousands of games with UCT based Lazarus program and the
strength improvement per doubling was very clear and impressive.
Don, what komi did you use when you did that study? Looking in the
archives, all I can find is you saying that komi=9 is correct. So
does that mean 8.5 or 9.5? Or did you allow draws?
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