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Initial pass at getting up to GaussianWeightedSum running

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This commit is contained in:
Jeff Moser
2010-09-25 19:26:57 -04:00
parent fa10d276d6
commit f7d76b02a9
5 changed files with 18 additions and 11 deletions
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3
PHPSkills/FactorGraphs/VariableFactory.php
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@ -16,7 +16,8 @@ class VariableFactory
public function createBasicVariable() public function createBasicVariable()
{ {
$newVar = new Variable($this->_variablePriorInitializer()); $initializer = $this->_variablePriorInitializer;
$newVar = new Variable("variable", $initializer());
return $newVar; return $newVar;
} }

2
PHPSkills/PartialPlay.php
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@ -14,7 +14,7 @@ class PartialPlay
return 1.0; return 1.0;
} }
$partialPlayPercentage = $partialPlay->getPartialPlayPercentage(); $partialPlayPercentage = $player->getPartialPlayPercentage();
// HACK to get around bug near 0 // HACK to get around bug near 0
$smallestPercentage = 0.0001; $smallestPercentage = 0.0001;

16
PHPSkills/TrueSkill/Layers/PlayerPerformancesToTeamPerformancesLayer.php
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@ -1,15 +1,19 @@
<?php <?php
namespace Moserware\Skills\TrueSkill\Layers; namespace Moserware\Skills\TrueSkill\Layers;
require_once(dirname(__FILE__) . "/../../PartialPlay.php");
require_once(dirname(__FILE__) . "/../../FactorGraphs/Schedule.php"); require_once(dirname(__FILE__) . "/../../FactorGraphs/Schedule.php");
require_once(dirname(__FILE__) . "/../Factors/GaussianWeightedSumFactor.php");
require_once(dirname(__FILE__) . "/../TrueSkillFactorGraph.php"); require_once(dirname(__FILE__) . "/../TrueSkillFactorGraph.php");
require_once(dirname(__FILE__) . "/TrueSkillFactorGraphLayer.php"); require_once(dirname(__FILE__) . "/TrueSkillFactorGraphLayer.php");
require_once(dirname(__FILE__) . "/TeamPerformancesToTeamPerformanceDifferencesLayer.php"); require_once(dirname(__FILE__) . "/TeamPerformancesToTeamPerformanceDifferencesLayer.php");
require_once(dirname(__FILE__) . "/TeamDifferencesComparisonLayer.php"); require_once(dirname(__FILE__) . "/TeamDifferencesComparisonLayer.php");
use Moserware\Skills\PartialPlay;
use Moserware\Skills\FactorGraphs\ScheduleLoop; use Moserware\Skills\FactorGraphs\ScheduleLoop;
use Moserware\Skills\FactorGraphs\ScheduleSequence; use Moserware\Skills\FactorGraphs\ScheduleSequence;
use Moserware\Skills\FactorGraphs\ScheduleStep; use Moserware\Skills\FactorGraphs\ScheduleStep;
use Moserware\Skills\TrueSkill\Factors\GaussianWeightedSumFactor;
use Moserware\Skills\TrueSkill\TrueSkillFactorGraph; use Moserware\Skills\TrueSkill\TrueSkillFactorGraph;
class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLayer class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLayer
@ -46,15 +50,17 @@ class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLaye
protected function createPlayerToTeamSumFactor(&$teamMembers, &$sumVariable) protected function createPlayerToTeamSumFactor(&$teamMembers, &$sumVariable)
{ {
return new GaussianWeightedSumFactor( $weights = array_map(
$sumVariable,
$teamMembers,
array_map(
function($v) function($v)
{ {
return PartialPlay::getPartialPlayPercentage($v->getKey()); return PartialPlay::getPartialPlayPercentage($v->getKey());
}, },
$teamMembers)); $teamMembers);
return new GaussianWeightedSumFactor(
$sumVariable,
$teamMembers,
$weights);
} }

6
PHPSkills/TrueSkill/Layers/PlayerSkillsToPerformancesLayer.php
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@ -28,11 +28,11 @@ class PlayerSkillsToPerformancesLayer extends TrueSkillFactorGraphLayer
{ {
$playerPerformance = $this->createOutputVariable($playerSkillVariable->getKey()); $playerPerformance = $this->createOutputVariable($playerSkillVariable->getKey());
$this->addLayerFactor($this->createLikelihood($playerSkillVariable, $playerPerformance)); $this->addLayerFactor($this->createLikelihood($playerSkillVariable, $playerPerformance));
$currentTeamPlayerPerformances[] = $playerPerformance; $currentTeamPlayerPerformances[] = &$playerPerformance;
} }
$outputVariablesGroups = $this->getOutputVariablesGroups(); $outputVariablesGroups = &$this->getOutputVariablesGroups();
$outputVariablesGroups[] = $currentTeamPlayerPerformances; $outputVariablesGroups[] = &$currentTeamPlayerPerformances;
} }
} }

2
PHPSkills/TrueSkill/TrueSkillFactorGraph.php
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@ -75,7 +75,7 @@ class TrueSkillFactorGraph extends FactorGraph
$currentLayer->buildLayer(); $currentLayer->buildLayer();
$lastOutput = $currentLayer->getOutputVariablesGroups(); $lastOutput = &$currentLayer->getOutputVariablesGroups();
} }
} }