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

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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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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()