Package org.tweetyproject.arg.prob.dynamics

Class AbstractPAChangeOperator

java.lang.Object

org.tweetyproject.arg.prob.dynamics.AbstractPAChangeOperator

All Implemented Interfaces:

ChangeOperator

Direct Known Subclasses:

PARevisionOperator, PAUpdateOperator

public abstract class AbstractPAChangeOperator
extends Object
implements ChangeOperator

Provides common functionality for change operators based on probabilistic semantics.

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor	Description
AbstractPAChangeOperator(PASemantics semantics, RealVectorNorm norm, SimpleRealValuedFunction f)	Creates a new change operator for the given semantics that uses the specified norm for distance measuring and the given function for optimizing.

Method Summary

Modifier and Type	Method	Description
ProbabilisticExtension	change(ProbabilisticExtension p, DungTheory theory)	Given a probabilistic extension and an argumentation theory, compute the closest probabilistic extension that is adequate for observing the theory in the state p.
abstract ProbabilisticExtension	change(PartialProbabilityAssignment ppa, DungTheory theory)	Given a partial probability assignment ppa and an argumentation theory, compute the closest probabilistic extension that is adequate for observing the theory in the state ppa.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractPAChangeOperator

public AbstractPAChangeOperator(PASemantics semantics,
 RealVectorNorm norm,
 SimpleRealValuedFunction f)

Creates a new change operator for the given semantics that uses the specified norm for distance measuring and the given function for optimizing.

Parameters:

semantics - the semantics used for change.

norm - the norm used for distance measurement between probabilistic extensions.

f - the function that is maximized on the set of probabilistic extensions with minimal distance.

Method Details

change

public abstract ProbabilisticExtension change(PartialProbabilityAssignment ppa,
 DungTheory theory)

Description copied from interface: ChangeOperator

Given a partial probability assignment ppa and an argumentation theory, compute the closest probabilistic extension that is adequate for observing the theory in the state ppa.

Specified by:

change in interface ChangeOperator

Parameters:

ppa - some partial probability assignment.

theory - some theory.

Returns:

the closest probabilistic extension that is adequate for observing the theory in the state ppa.

change

public ProbabilisticExtension change(ProbabilisticExtension p,
 DungTheory theory)

Description copied from interface: ChangeOperator

Given a probabilistic extension and an argumentation theory, compute the closest probabilistic extension that is adequate for observing the theory in the state p.

Specified by:

change in interface ChangeOperator

Parameters:

p - some probabilistic extension.

theory - some theory.

Returns:

the closest probabilistic extension that is adequate for observing the theory in the state p.