Quoting Ingo Althöfer <[email protected]>:
Darren Cook wrote:
I'm surprised people are using a simple linear decreasing rule, but
very interested to hear there is a tangible improvement.
I was surprised, too.
Perhaps being adaptive isn't needed?
The simplest solution is the best solution (old proverb).
I have implemented *adaptive* dynamic komi in Valkyria now and are
testing it on KGS. It adjusts the komi after each move, and uses the
same komi for each generated move.
Wild stuff do happen when groups dies and both colors makes blunders
under time pressure. With adaptive dynamic komi the search becomes
very unpredictable. So for many moves it will search with a too high
or a too low komi. In the opening it is not much of a trouble. So I
can perfectly see why a linearly decreasing komi will give a boost for
sure to the playing strength without risking loosing games because of
the chaotic nature of adaptive dynamic komi.
Valkyria now uses dynamic komi in all games and also for lost position
up to being behind 20 points. It sets the dynamic part to zero when
there are two dames left, which leads to the "tricky behavior" that it
tries wild things just before resigning, after trying to catch up by
playing a "proper" endgame.
Tonight it move from 6 kyu to 5 kyu, but the 6 kyu rating was not
certain so it is hard to tell whether the change affects the strength.
I think it is now more fun to play against it and would appreciate any
comments about the new playing style from strong as well from weak
players.
Best
Magnus
--
Magnus Persson
Berlin, Germany
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