burlap.behavior.singleagent.planning.stochastic.valueiteration

Class PrioritizedSweeping.BPTRNode

java.lang.Object

burlap.behavior.singleagent.planning.stochastic.valueiteration.PrioritizedSweeping.BPTRNode

Enclosing class:

PrioritizedSweeping

protected class PrioritizedSweeping.BPTRNode
extends java.lang.Object

A node for state thar contains a list of its back pointers, their max probability of transition to this state, and the priority of this nodes state.

Author:

James MacGlashan

Field Summary

Fields

Modifier and Type	Field and Description
java.util.List<PrioritizedSweeping.BPTR>	backPointers
double	maxSelfTransitionProb
double	priority
HashableState	sh

Constructor Summary

Constructors

Constructor and Description
BPTRNode(HashableState sh) Creates a back pointer for the given state with no back pointers and a priority of Double.MAX_VALUE (ensures one sweep of the state space to start)

Method Summary

Modifier and Type	Method and Description
void	addBackTransition(PrioritizedSweeping.BPTRNode bptr) Adds a backpointer transition
boolean	equals(java.lang.Object other)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

sh

public HashableState sh

backPointers

public java.util.List<PrioritizedSweeping.BPTR> backPointers

maxSelfTransitionProb

public double maxSelfTransitionProb

priority

public double priority

Constructor Detail

BPTRNode

public BPTRNode(HashableState sh)

Creates a back pointer for the given state with no back pointers and a priority of Double.MAX_VALUE (ensures one sweep of the state space to start)

Parameters:

sh - the hased state for which this node will correspond

Method Detail

addBackTransition

public void addBackTransition(PrioritizedSweeping.BPTRNode bptr)

Adds a backpointer transition

Parameters:

bptr - the node that can transition to this node

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object