Package org.tweetyproject.arg.rankings.reasoner

Class TuplesRankingReasoner

java.lang.Object
org.tweetyproject.arg.rankings.reasoner.AbstractRankingReasoner<LatticeArgumentRanking>
org.tweetyproject.arg.rankings.reasoner.TuplesRankingReasoner
All Implemented Interfaces:
ModelProvider<Argument,​ArgumentationFramework,​LatticeArgumentRanking>, PostulateEvaluatable<Argument>
public class TuplesRankingReasoner extends AbstractRankingReasoner<LatticeArgumentRanking>
This class implements the "tuples*" argument ranking approach as proposed by [Cayrol, Lagasquie-Schiex. Graduality in argumentation. 2005]. It takes into account all the ancestors branches of an arguument stored in tupled values. Some arguments are incomparable using this approach; this means that it returns partial rankings.

Note: This implementation only works for acyclic argument graphs. For cyclic graphs null is returned.
Author:
Anna Gessler

  • Constructor Details

    • TuplesRankingReasoner

      public TuplesRankingReasoner()

  • Method Details

    • getModels

      public Collection<LatticeArgumentRanking> getModels​(ArgumentationFramework bbase)
      Description copied from interface: ModelProvider
      Returns a characterizing model of the given belief base
      Parameters:
      bbase - some belief base
      Returns:
      the (selected) models of the belief base

    • getModel

      public LatticeArgumentRanking getModel​(ArgumentationFramework kb)
      Description copied from interface: ModelProvider
      Returns a single (dedicated) model of the given belief base. If the implemented method allows for more than one dedicated model, the selection may be non-deterministic.
      Parameters:
      kb - some belief base
      Returns:
      a selected model of the belief base.

    • computeTupledValue

      public Pair<int[],​int[]> computeTupledValue​(Argument a, DungTheory kb)
      Computes the tupled value for the given argument.
      Parameters:
      a - an argument
      kb - DungTheory
      Returns:
      a pair that consists of the two tuples that represent the defense (first tuple) and attack (second tuple) branches of a.

    • getTupledValues

      public Map<Argument,​Pair<int[],​int[]>> getTupledValues()
      Returns:
      the tupled values computed by previous calls of getModel oder getModels

    • prettyPrintTupledValues

      public String prettyPrintTupledValues()
      Prints the tupled values computed by previous calls of getModel oder getModels in a human-readable way.
      Returns:
      a string representation of the tuples