net.pakl.rl
Class PolicyExtractor

java.lang.Object
  net.pakl.rl.PolicyExtractor

public class PolicyExtractor
extends java.lang.Object

Outputs the optimal actions given a world (environment) (which includes the starting state), value function and generic policy (describing allowed actions) by picking actions which lead to the next highest-valued state. Note: this does not take into account the immediate reward, only the value of the next state. This supports "Patch" value functions, and so will load a new value function according to the patch name derived by the state object if it does not match with the currently-loaded value function.

Field Summary

static boolean	DYNAMICALLY_LOAD_VALUE_FUNCTION_PATCHES
static int	MAXIMUM_ALLOWED_NUM_ACTIONS

Constructor Summary

PolicyExtractor()

Method Summary

java.lang.String	extractOptimalPolicy(ActionSet naivePolicy, ValueFunction valueFunction, World trainedWorld, World testWorld, ReinforcementFunction rf, double discountFactor)
void	forceInitialState(State s)
java.util.List	getOptimalActions()
void	setOptimalActions(java.util.List optimalActions)

Methods inherited from class java.lang.Object

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

Field Detail

DYNAMICALLY_LOAD_VALUE_FUNCTION_PATCHES

public static boolean DYNAMICALLY_LOAD_VALUE_FUNCTION_PATCHES

MAXIMUM_ALLOWED_NUM_ACTIONS

public static final int MAXIMUM_ALLOWED_NUM_ACTIONS

See Also:

Constant Field Values

Constructor Detail

PolicyExtractor

public PolicyExtractor()

Method Detail

forceInitialState

public void forceInitialState(State s)

extractOptimalPolicy

public java.lang.String extractOptimalPolicy(ActionSet naivePolicy,
                                             ValueFunction valueFunction,
                                             World trainedWorld,
                                             World testWorld,
                                             ReinforcementFunction rf,
                                             double discountFactor)

getOptimalActions

public java.util.List getOptimalActions()

setOptimalActions

public void setOptimalActions(java.util.List optimalActions)