Package com.yahoo.searchlib.gbdt

Class FeatureNode

java.lang.Object

com.yahoo.searchlib.gbdt.TreeNode

com.yahoo.searchlib.gbdt.FeatureNode

Direct Known Subclasses:

CategoryFeatureNode, NumericFeatureNode

public abstract class FeatureNode
extends TreeNode

A node in a GBDT tree which references a feature value

Author:

bratseth

Constructor Summary

Constructors

Constructor	Description
FeatureNode(java.lang.String feature, java.util.Optional<java.lang.Integer> samples, TreeNode left, TreeNode right)

Method Summary

Modifier and Type	Method	Description
java.lang.String	feature()
static FeatureNode	fromDom(org.w3c.dom.Node node)
TreeNode	left()
protected abstract java.lang.String	rankingExpressionCondition()
TreeNode	right()
java.lang.String	toRankingExpression()

Methods inherited from class com.yahoo.searchlib.gbdt.TreeNode

samples

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureNode

public FeatureNode(java.lang.String feature,
                   java.util.Optional<java.lang.Integer> samples,
                   TreeNode left,
                   TreeNode right)

Method Detail

feature

public java.lang.String feature()

left

public TreeNode left()

right

public TreeNode right()

toRankingExpression

public java.lang.String toRankingExpression()

Specified by:

toRankingExpression in class TreeNode

rankingExpressionCondition

protected abstract java.lang.String rankingExpressionCondition()

fromDom

public static FeatureNode fromDom(org.w3c.dom.Node node)