de.jungblut.classification.tree

Class AbstractTreeNode

java.lang.Object

de.jungblut.classification.tree.AbstractTreeNode

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Direct Known Subclasses:

LeafNode, NominalNode, NumericalNode

public abstract class AbstractTreeNode
extends Object
implements org.apache.hadoop.io.Writable

Constructor Summary

Constructors

Constructor and Description
AbstractTreeNode()

Method Summary

Modifier and Type	Method and Description
abstract byte	getType()
abstract int	predict(de.jungblut.math.DoubleVector features)
static AbstractTreeNode	read(DataInput in)
abstract void	transformToByteCode(org.objectweb.asm.MethodVisitor visitor, org.objectweb.asm.Label returnLabel) Transforms this node to byte code, given a visitor that already starts containing the methods and a label that must be jumped to in case of a return.
void	write(DataOutput out)
protected abstract void	writeInternal(DataOutput out) serialize internal state.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.io.Writable

readFields

Constructor Detail

AbstractTreeNode

public AbstractTreeNode()

Method Detail

predict

public abstract int predict(de.jungblut.math.DoubleVector features)

Returns:

predicts the index of the outcome, or -1 if not known. In the binary case, 0 and 1 are used to distinguish.

transformToByteCode

public abstract void transformToByteCode(org.objectweb.asm.MethodVisitor visitor,
                                         org.objectweb.asm.Label returnLabel)

Transforms this node to byte code, given a visitor that already starts containing the methods and a label that must be jumped to in case of a return.

getType

public abstract byte getType()

Returns:

the byte id of the type: leaf = 1, numerical = 2; nominal = 3

writeInternal

protected abstract void writeInternal(DataOutput out)
                               throws IOException

serialize internal state.

Throws:

IOException

write

public final void write(DataOutput out)
                 throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

read

public static AbstractTreeNode read(DataInput in)
                             throws IOException

Throws:

IOException