Package com.yahoo.searchlib.rankingexpression.evaluation.gbdtoptimization

Class GBDTForestOptimizer

java.lang.Object

com.yahoo.searchlib.rankingexpression.evaluation.Optimizer

com.yahoo.searchlib.rankingexpression.evaluation.gbdtoptimization.GBDTForestOptimizer

public class GBDTForestOptimizer
extends Optimizer

Author:

bratseth

Constructor Summary

Constructors

Constructor	Description
GBDTForestOptimizer()

Method Summary

Modifier and Type	Method	Description
void	optimize(RankingExpression expression, ContextIndex context, OptimizationReport report)	Optimizes sums of GBDTNodes by replacing them by a single GBDTForestNode

Methods inherited from class com.yahoo.searchlib.rankingexpression.evaluation.Optimizer

isEnabled, setEnabled

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GBDTForestOptimizer

public GBDTForestOptimizer()

Method Details

optimize

public void optimize(RankingExpression expression,
 ContextIndex context,
 OptimizationReport report)

Optimizes sums of GBDTNodes by replacing them by a single GBDTForestNode

Specified by:

optimize in class Optimizer

Parameters:

expression - the expression to destructively optimize

context - a fast lookup context created from the given expression

report - the optimization report to which actions of this is logged