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More debugging and realizing how PHP does references

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This commit is contained in:
Jeff Moser
2010-09-25 15:46:23 -04:00
parent e8d444e7da
commit 086d94865f
21 changed files with 77 additions and 72 deletions
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4
PHPSkills/TrueSkill/Factors/GaussianFactor.php
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@ -20,7 +20,7 @@ abstract class GaussianFactor extends Factor
}
/// Sends the factor-graph message with and returns the log-normalization constant
protected function sendMessageVariable(Message $message, Variable $variable)
protected function sendMessageVariable(Message &$message, Variable &$variable)
{
$marginal = $variable->getValue();
$messageValue = $message->getValue();
@ -29,7 +29,7 @@ abstract class GaussianFactor extends Factor
return $logZ;
}
public function createVariableToMessageBinding(Variable $variable)
public function createVariableToMessageBinding(Variable &$variable)
{
return parent::createVariableToMessageBinding($variable,
new Message(

4
PHPSkills/TrueSkill/Factors/GaussianGreaterThanFactor.php
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@ -20,7 +20,7 @@ class GaussianGreaterThanFactor extends GaussianFactor
{
private $_epsilon;
public function __construct($epsilon, Variable $variable)
public function __construct($epsilon, Variable &$variable)
{
parent::_construct("{0} > {1:0.000}");
$this->_epsilon = $epsilon;
@ -42,7 +42,7 @@ class GaussianGreaterThanFactor extends GaussianFactor
}
protected function updateMessageVariable(Message $message, Variable $variable)
protected function updateMessageVariable(Message &$message, Variable &$variable)
{
$oldMarginal = clone $variable->getValue();
$oldMessage = clone $message->getValue();

6
PHPSkills/TrueSkill/Factors/GaussianLikelihoodFactor.php
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@ -18,7 +18,7 @@ class GaussianLikelihoodFactor extends GaussianFactor
{
private $_precision;
public function __construct($betaSquared, Variable $variable1, Variable $variable2)
public function __construct($betaSquared, Variable &$variable1, Variable &$variable2)
{
parent::__construct("Likelihood of {0} going to {1}");
$this->_precision = 1.0/$betaSquared;
@ -36,8 +36,8 @@ class GaussianLikelihoodFactor extends GaussianFactor
$messages[0]->getValue());
}
private function updateHelper(Message $message1, Message $message2,
Variable $variable1, Variable $variable2)
private function updateHelper(Message &$message1, Message &$message2,
Variable &$variable1, Variable &$variable2)
{
$message1Value = clone $message1->getValue();
$message2Value = clone $message2->getValue();

6
PHPSkills/TrueSkill/Factors/GaussianPriorFactor.php
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@ -19,7 +19,7 @@ class GaussianPriorFactor extends GaussianFactor
{
private $_newMessage;
public function __construct($mean, $variance, Variable $variable)
public function __construct($mean, $variance, Variable &$variable)
{
parent::__construct("Prior value going to {0}");
$this->_newMessage = new GaussianDistribution($mean, sqrt($variance));
@ -27,10 +27,10 @@ class GaussianPriorFactor extends GaussianFactor
new Message(
GaussianDistribution::fromPrecisionMean(0, 0),
"message from {0} to {1}",
this, variable));
$this, variable));
}
protected function updateMessageVariable(Message $message, Variable $variable)
protected function updateMessageVariable(Message &$message, Variable &$variable)
{
$oldMarginal = clone $variable->getValue();
$oldMessage = $message;

8
PHPSkills/TrueSkill/Factors/GaussianWeightedSumFactor.php
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@ -23,7 +23,7 @@ class GaussianWeightedSumFactor extends GaussianFactor
private $_weights;
private $_weightsSquared;
public function __construct(Variable $sumVariable, array $variablesToSum, array $variableWeights = null)
public function __construct(Variable &$sumVariable, array &$variablesToSum, array &$variableWeights = null)
{
parent::__construct($this->createName($sumVariable, $variablesToSum, $variableWeights));
$this->_weights = array();
@ -133,9 +133,9 @@ class GaussianWeightedSumFactor extends GaussianFactor
return $result;
}
private function updateHelper(array $weights, array $weightsSquared,
array $messages,
array $variables)
private function updateHelper(array &$weights, array &$weightsSquared,
array &$messages,
array &$variables)
{
// Potentially look at http://mathworld.wolfram.com/NormalSumDistribution.html for clues as
// to what it's doing

4
PHPSkills/TrueSkill/Factors/GaussianWithinFactor.php
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@ -20,7 +20,7 @@ class GaussianWithinFactor extends GaussianFactor
{
private $_epsilon;
public function __construct($epsilon, Variable $variable)
public function __construct($epsilon, Variable &$variable)
{
$this->_epsilon = $epsilon;
$this->createVariableToMessageBinding($variable);
@ -43,7 +43,7 @@ class GaussianWithinFactor extends GaussianFactor
return -GaussianDistribution::logProductNormalization($messageFromVariable, $message) + log($z);
}
protected function updateMessage(Message $message, Variable $variable)
protected function updateMessage(Message &$message, Variable &$variable)
{
$oldMarginal = clone $variable->getValue();
$oldMessage = clone $message->getValue();