Package net.sf.tweety.agents.dialogues.structured

Class SasAgent

java.lang.Object

net.sf.tweety.agents.Agent

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

Direct Known Subclasses:

OvercautiousArgumentationAgent, TruthfulArgumentationAgent

public abstract class SasAgent
extends Agent

This class represents an agent in a structured argumentation system.

Author:

Matthias Thimm

Field Summary

Fields

Modifier and Type	Field	Description
private StructuredArgumentationFramework	commonView	The current state of the argumentation as perceived by all agents.
private boolean	isSingleStep	Indicates whether this agent is a single-step argumentation agent, i.e.
private UtilityFunction	utility	The utility function of this agent.
private StructuredArgumentationFramework	view	The current view of this agent on the overall argumentation, i.e.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected StructuredArgumentationFramework	getCommonView()	Returns the common view of this agent.
protected java.util.Set<Argument>	getPossibleArguments()	Returns the set of arguments this agent may bring forward.
protected UtilityFunction	getUtilityFunction()	Returns the utility function of this agent.
protected StructuredArgumentationFramework	getView()	Returns the view of this agent.
boolean	isSingleStep()	Checks whether this agent is a single-step argumentation agent, i.e.
Executable	next(java.util.Collection<? extends Perceivable> percepts)	Determines the next action of this agent wrt.
int	rank(java.util.Collection<? extends Proposition> propositions)	Ranks the given collection of propositions wrt.

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

isSingleStep

private boolean 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.

view

private StructuredArgumentationFramework view

The current view of this agent on the overall argumentation, i.e. its subjective beliefs on the all possible arguments and their relations.

commonView

private StructuredArgumentationFramework commonView

The current state of the argumentation as perceived by all agents.

utility

private UtilityFunction utility

The utility function of this agent.

Constructor Detail

SasAgent

public SasAgent(StructuredArgumentationFramework view,
                UtilityFunction utility)

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

Parameters:

view - the view of the agent on the argumentation.

utility - a utility function.

SasAgent

public SasAgent(StructuredArgumentationFramework view,
                UtilityFunction utility,
                boolean isSingleStep)

Creates a new SasAgent 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.

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.

Specified by:

next in class Agent

Parameters:

percepts - a collection of percepts.

Returns:

an action.

getView

protected StructuredArgumentationFramework getView()

Returns the view of this agent.

Returns:

the view of this agent.

getCommonView

protected StructuredArgumentationFramework getCommonView()

Returns the common view of this agent.

Returns:

the common view of this agent.

getUtilityFunction

protected UtilityFunction getUtilityFunction()

Returns the utility function of this agent.

Returns:

the utility function of this agent.

isSingleStep

public boolean isSingleStep()

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

Returns:

"true" if this agent is a single-step agent.

getPossibleArguments

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

Returns the set of arguments this agent may bring forward.

Returns:

The set of arguments this agent may bring forward.

rank

public int rank(java.util.Collection<? extends Proposition> propositions)

Ranks the given collection of propositions wrt. this agent's utility function.

Parameters:

propositions - a collection of propositions.

Returns:

the rank of the given collection of propositions wrt. this agent's utility function.