net.sf.tweety.agents.dialogues.structured

Class OvercautiousArgumentationAgent

java.lang.Object

net.sf.tweety.agents.Agent

net.sf.tweety.agents.dialogues.structured.SasAgent

net.sf.tweety.agents.dialogues.structured.OvercautiousArgumentationAgent

Direct Known Subclasses:

CautiousArgumentationAgent

public class OvercautiousArgumentationAgent
extends SasAgent

This class models an overcautious argumentation agent, i.e. an agent that only brings forward arguments that cannot be harmful to this agent's goal of proving some given proposition.

Author:

Matthias Thimm

Field Summary

Fields

Modifier and Type	Field and Description
private Proposition	focalElement The focal element of this agent.

Constructor Summary

Constructors

Constructor and Description
OvercautiousArgumentationAgent(StructuredArgumentationFramework view, UtilityFunction utility, boolean isSingleStep, Proposition focalElement) Creates a new agent with the given (local) view and utility function.
OvercautiousArgumentationAgent(StructuredArgumentationFramework view, UtilityFunction utility, Proposition focalElement) Creates a new (non-single-step) agent with the given (local) view and utility function.

Method Summary

Modifier and Type	Method and Description
protected java.util.Set<Argument>	attackSet() Computes the attack set of this agent's focal element wrt.
Executable	next(java.util.Collection<? extends Perceivable> percepts) Determines the next action of this agent wrt.

Methods inherited from class net.sf.tweety.agents.dialogues.structured.SasAgent

getCommonView, getPossibleArguments, getUtilityFunction, getView, isSingleStep, rank

Methods inherited from class net.sf.tweety.agents.Agent

getName, toString

Methods inherited from class java.lang.Object

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

Field Detail

focalElement

private Proposition focalElement

The focal element of this agent.

Constructor Detail

OvercautiousArgumentationAgent

public OvercautiousArgumentationAgent(StructuredArgumentationFramework view,
                                      UtilityFunction utility,
                                      Proposition focalElement)

Creates a new (non-single-step) agent with the given (local) view and utility function.

Parameters:

view - the view of the agent on the argumentation.

utility - a utility function.

focalElement - the focal element of this agent.

OvercautiousArgumentationAgent

public OvercautiousArgumentationAgent(StructuredArgumentationFramework view,
                                      UtilityFunction utility,
                                      boolean isSingleStep,
                                      Proposition focalElement)

Creates a new agent with the given (local) view and utility function.

Parameters:

view - the view of the agent on the argumentation.

utility - a utility function.

isSingleStep - indicates whether this agent is a single-step argumentation agent, i.e. whether he may bring forward only one argument at a time or multiple.

focalElement - the focal element of this agent.

Method Detail

next

public Executable next(java.util.Collection<? extends Perceivable> percepts)

Description copied from class: Agent

Determines the next action of this agent wrt. the given percepts.

Overrides:

next in class SasAgent

Parameters:

percepts - a collection of percepts.

Returns:

an action.

attackSet

protected java.util.Set<Argument> attackSet()

Computes the attack set of this agent's focal element wrt. its view, i.e. the set of basic arguments "arg" such that there are argumentation structures "AS1" and "AS2" with "arg" in "AS1", "AS1" indirectly attacks "AS2" and the claim of "AS2" is the agent's focal element.

Returns:

the attack set of this agent's focal element wrt. its view.