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@ -1,4 +1,6 @@
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<?php namespace DNW\Skills\TrueSkill\Factors;
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<?php
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namespace DNW\Skills\TrueSkill\Factors;
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use DNW\Skills\FactorGraphs\Factor;
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use DNW\Skills\FactorGraphs\Message;
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@ -14,8 +16,9 @@ abstract class GaussianFactor extends Factor
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/**
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* Sends the factor-graph message with and returns the log-normalization constant.
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* @param Message $message
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* @param Variable $variable
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*
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* @param Message $message
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* @param Variable $variable
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* @return float|int
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*/
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protected function sendMessageVariable(Message $message, Variable $variable)
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@ -24,6 +27,7 @@ abstract class GaussianFactor extends Factor
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$messageValue = $message->getValue();
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$logZ = GaussianDistribution::logProductNormalization($marginal, $messageValue);
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$variable->setValue(GaussianDistribution::multiply($marginal, $messageValue));
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return $logZ;
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}
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@ -33,7 +37,8 @@ abstract class GaussianFactor extends Factor
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$binding = parent::createVariableToMessageBindingWithMessage($variable,
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new Message(
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$newDistribution,
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sprintf("message from %s to %s", $this, $variable)));
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sprintf('message from %s to %s', $this, $variable)));
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return $binding;
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}
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}
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}
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