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First pass at building the graph, but still off from running it

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This commit is contained in:
Jeff Moser 2010-09-25 22:16:47 -04:00
parent eee44c9746
commit 8e9e2d0d86
5 changed files with 18 additions and 12 deletions
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2
PHPSkills/TrueSkill/Factors/GaussianWeightedSumFactor.php
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@ -93,7 +93,7 @@ class GaussianWeightedSumFactor extends GaussianFactor
}
$currentWeights[$currentDestinationWeightIndex] = $currentWeight;
$currentWeightsSquared[$currentDestinationWeightIndex] = $currentWeight*currentWeight;
$currentWeightsSquared[$currentDestinationWeightIndex] = $currentWeight*$currentWeight;
$variableIndices[$currentDestinationWeightIndex + 1] = $currentWeightSourceIndex + 1;
$currentDestinationWeightIndex++;

3
PHPSkills/TrueSkill/Layers/IteratedTeamDifferencesInnerLayer.php
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@ -29,7 +29,8 @@ class IteratedTeamDifferencesInnerLayer extends TrueSkillFactorGraphLayer
public function buildLayer()
{
$this->_TeamPerformancesToTeamPerformanceDifferencesLayer->setInputVariablesGroups($this->getInputVariablesGroups());
$inputVariablesGroups = $this->getInputVariablesGroups();
$this->_TeamPerformancesToTeamPerformanceDifferencesLayer->setInputVariablesGroups($inputVariablesGroups);
$this->_TeamPerformancesToTeamPerformanceDifferencesLayer->buildLayer();
$this->_TeamDifferencesComparisonLayer->setInputVariablesGroups(

9
PHPSkills/TrueSkill/Layers/PlayerPerformancesToTeamPerformancesLayer.php
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@ -27,12 +27,13 @@ class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLaye
{
foreach ($this->getInputVariablesGroups() as $currentTeam)
{
$teamPerformance = $this->createOutputVariable($currentTeam);
$this->addLayerFactor($this->createPlayerToTeamSumFactor($currentTeam, $teamPerformance));
$teamPerformance = &$this->createOutputVariable($currentTeam);
$newSumFactor = $this->createPlayerToTeamSumFactor($currentTeam, $teamPerformance);
$this->addLayerFactor($newSumFactor);
// REVIEW: Does it make sense to have groups of one?
$outputVariablesGroups = $this->getOutputVariablesGroups();
$outputVariablesGroups = $teamPerformance;
$outputVariablesGroups = &$this->getOutputVariablesGroups();
$outputVariablesGroups[] = array($teamPerformance);
}
}

3
PHPSkills/TrueSkill/Layers/PlayerSkillsToPerformancesLayer.php
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@ -27,7 +27,8 @@ class PlayerSkillsToPerformancesLayer extends TrueSkillFactorGraphLayer
foreach ($currentTeam as $playerSkillVariable)
{
$playerPerformance = $this->createOutputVariable($playerSkillVariable->getKey());
$this->addLayerFactor($this->createLikelihood($playerSkillVariable, $playerPerformance));
$newLikelihoodFactor = $this->createLikelihood($playerSkillVariable, $playerPerformance);
$this->addLayerFactor($newLikelihoodFactor);
$currentTeamPlayerPerformances[] = &$playerPerformance;
}

13
PHPSkills/TrueSkill/Layers/TeamPerformancesToTeamPerformanceDifferencesLayer.php
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@ -20,16 +20,17 @@ class TeamPerformancesToTeamPerformanceDifferencesLayer extends TrueSkillFactorG
public function buildLayer()
{
$inputVariablesGroup = $this->getInputVariablesGroups();
$inputVariablesGroupCount = count($inputVariablesGroup);
$inputVariablesGroups = &$this->getInputVariablesGroups();
$inputVariablesGroupsCount = count($inputVariablesGroups);
for ($i = 0; $i < $inputVariablesGroupCount - 1; $i++)
for ($i = 0; $i < $inputVariablesGroupsCount - 1; $i++)
{
$strongerTeam = $inputVariablesGroups[$i][0];
$weakerTeam = $inputVariablesGroups[$i + 1][0];
$currentDifference = $this->createOutputVariable();
$this->addLayerFactor($this->createTeamPerformanceToDifferenceFactor($strongerTeam, $weakerTeam, currentDifference));
$newDifferencesFactor = $this->createTeamPerformanceToDifferenceFactor($strongerTeam, $weakerTeam, $currentDifference);
$this->addLayerFactor($newDifferencesFactor);
// REVIEW: Does it make sense to have groups of one?
$outputVariablesGroup = $this->getOutputVariablesGroups();
@ -40,7 +41,9 @@ class TeamPerformancesToTeamPerformanceDifferencesLayer extends TrueSkillFactorG
private function createTeamPerformanceToDifferenceFactor(
Variable &$strongerTeam, Variable &$weakerTeam, Variable &$output)
{
return new GaussianWeightedSumFactor($output, array($strongerTeam, $weakerTeam), array(1.0, -1.0));
$teams = array($strongerTeam, $weakerTeam);
$weights = array(1.0, -1.0);
return new GaussianWeightedSumFactor($output, $teams, $weights);
}
private function createOutputVariable()