Originally Posted by Sagarin
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GOLDEN_MEAN is completely SCORE BASED but with a different algorithm than the PURE POINTS
and thus should be a good match for the PURE POINTS in terms of predictive accuracy for upcoming games.
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In ELO_SCORE, the score determines what fraction of a victory was attained but since the maximum
fraction is ONE(1.00), no matter how big the score is, it prevents running up the score to be that advantageous;
It is slightly less accurate in its predictions for upcoming games than is the PURE POINTS or GOLDEN_MEAN,
in which the score is the only thing that matters. PURE POINTS is also known as PREDICTOR,
BALLANTINE, RHEINGOLD, WHITE OWL and is a very good PREDICTOR of future games.
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The overall RATING is a synthesis of the three different methods, with more total weight
to the two completely SCORE-BASED methods and thus should be a good predictor in its own right.
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