org.deeplearning4j.models.sequencevectors.graph.walkers.impl

Class RandomWalker.Builder<T extends SequenceElement>

java.lang.Object

org.deeplearning4j.models.sequencevectors.graph.walkers.impl.RandomWalker.Builder<T>

Direct Known Subclasses:

PopularityWalker.Builder, WeightedWalker.Builder

Enclosing class:

RandomWalker<T extends SequenceElement>

public static class RandomWalker.Builder<T extends SequenceElement>
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
protected double	alpha
protected NoEdgeHandling	noEdgeHandling
protected long	seed
protected IGraph<T,?>	sourceGraph
protected WalkDirection	walkDirection
protected int	walkLength

Constructor Summary

Constructors

Constructor and Description
Builder(IGraph<T,?> graph) Builder constructor for RandomWalker

Method Summary

Modifier and Type	Method and Description
RandomWalker<T>	build() This method builds RandomWalker instance
RandomWalker.Builder<T>	setNoEdgeHandling(NoEdgeHandling handling) This method defines walker behavior when it gets to node which has no next nodes available Default value: RESTART_ON_DISCONNECTED
RandomWalker.Builder<T>	setRestartProbability(double alpha) This method defines a chance for walk restart Good value would be somewhere between 0.03-0.07
RandomWalker.Builder<T>	setSeed(long seed) This method specifies random seed.
RandomWalker.Builder<T>	setWalkDirection(WalkDirection direction) This method defines next hop selection within walk
RandomWalker.Builder<T>	setWalkLength(int walkLength) This method specifies output sequence (walk) length

Methods inherited from class java.lang.Object

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

Field Detail

walkLength

protected int walkLength

noEdgeHandling

protected NoEdgeHandling noEdgeHandling

sourceGraph

protected IGraph<T extends SequenceElement,?> sourceGraph

seed

protected long seed

walkDirection

protected WalkDirection walkDirection

alpha

protected double alpha

Constructor Detail

Builder

public Builder(@NonNull
               IGraph<T,?> graph)

Builder constructor for RandomWalker

Parameters:

graph - source graph to be used for this walker

Method Detail

setWalkLength

public RandomWalker.Builder<T> setWalkLength(int walkLength)

This method specifies output sequence (walk) length

Parameters:

walkLength -

Returns:

setNoEdgeHandling

public RandomWalker.Builder<T> setNoEdgeHandling(@NonNull
                                                 NoEdgeHandling handling)

This method defines walker behavior when it gets to node which has no next nodes available Default value: RESTART_ON_DISCONNECTED

Parameters:

handling -

Returns:

setSeed

public RandomWalker.Builder<T> setSeed(long seed)

This method specifies random seed.

Parameters:

seed -

Returns:

setWalkDirection

public RandomWalker.Builder<T> setWalkDirection(@NonNull
                                                WalkDirection direction)

This method defines next hop selection within walk

Parameters:

direction -

Returns:

setRestartProbability

public RandomWalker.Builder<T> setRestartProbability(double alpha)

This method defines a chance for walk restart Good value would be somewhere between 0.03-0.07

Parameters:

alpha -

Returns:

build

public RandomWalker<T> build()

This method builds RandomWalker instance

Returns: