Examples of trust.jfcm.WeightedConnection

trust.jfcm.WeightedConnection
Simple {@link FcmConnection} implementation that applies a weight and a thresholdto the input {@link Concept}. Final output is calculated as follows:
```
 result = (from.getOutput() - from.getOutputThreshold()) * weight 
```
@author De Franciscis Dimitri - www.megadix.it

    Iterator<FcmConnection> it = out.iterator();
    double val = 0;
    while(it.hasNext()){
      FcmConnection conn = it.next();
      
      WeightedConnection wconn = null;
      if(conn instanceof WeightedConnection)
        wconn = (WeightedConnection) conn;
      
      Concept cout = wconn.getTo();
      LearningConcept lout = null;
      if(cout instanceof LearningConcept)
        lout = (LearningConcept) cout;
      
      if(!lout.isErrorCalculated())
        /*
         * Error cannot be computed yet
         */
        return false;
      
      val += wconn.getWeight() * lout.getError();
      
    }
    
    /*
     * Set Error

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      //insert links
      links = maps.get(map.getName()).getConnections().values();
      Iterator<FcmConnection> itc = links.iterator();
      edges = new Vector<MyEdge>();
      while(itc.hasNext()){
        WeightedConnection link = (WeightedConnection)itc.next();
        //System.out.println("Edge from" + link.getFrom().getName() + "to" + link.getTo().getName());
        
          
          String from = link.getFrom().getName();
          String to = link.getTo().getName();
          MyEdge e = new MyEdge("Edge: " + from + " -> " + to);
          e.setWeight(link.getWeight());
          edges.add(e);
        graph.addEdge(e, getVertexByName(from), getVertexByName(to), EdgeType.DIRECTED);
      }
    }

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        elemConn.setAttribute("to", conn.getTo().getName());
      }
      if (conn instanceof WeightedConnection) {
        elemConn.setAttribute("type", "WEIGHTED");


        WeightedConnection wc = (WeightedConnection) conn;
        Element param = doc.createElement("param");
        param.setAttribute("name", "name");
        param.setAttribute("value", Double.toString(wc.getWeight()));
        elemConn.appendChild(param);


      } else {
        throw new UnsupportedOperationException(
            "FcmConnection implementation not supported: " + conn.getClass().getName());

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  private double calculateDeltaOnWeights() {
    double weight_sum = 0;
    Collection<FcmConnection> connectionSet = map.getConnections().values();
    double size = connectionSet.size();
    for(FcmConnection conn : connectionSet){
      WeightedConnection wconn = (WeightedConnection) conn;
      weight_sum += wconn.getWeight();
    }
    return  weight_sum / size;
  }

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    /* clone connections */
    Iterator<FcmConnection> iter = this.getConnectionsIterator();
    while(iter.hasNext()){
      FcmConnection old_conn = (FcmConnection) iter.next();
      WeightedConnection new_conn = (WeightedConnection) old_conn.clone();
      new_conn.setFrom(map.getConcept(old_conn.getFrom().getName()));
      new_conn.setTo(map.getConcept(old_conn.getTo().getName()));
      map.addConnection(new_conn);
      map.connect(new_conn.getFrom().getName(), new_conn.getName(), new_conn.getTo().getName());
    }
    
    map.resetConcepts();
    
    map.trainingSet = (FcmTrainingSet) trainingSet.clone();

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            "to "+to.getName()+"("+to.getTrainingFunction()+") "+
            " with weight "+w.getWeight()+
            " / "+w.getWeightUncertainty()+"\n";
      }
      else{
        WeightedConnection w = (WeightedConnection) f;
        res += "   Connection from "+w.getFrom().getName()+" to "+w.getTo().getName()+ " with weight "+w.getWeight()+"\n";
      }
    }
    return res;
    
  }

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Related Classes of trust.jfcm.WeightedConnection

trust.jfcm.gui.Jung2DViewer

trust.jfcm.learning.FcmLearning

trust.jfcm.learning.FcmLearningIO

trust.jfcm.learning.training.ForwardPropagation

trust.jfcm.learning.training.LinearRegression

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