BackPropagationBiasNode.java

package func.nn.backprop;

/**
 * A bias node, implemented as a node
 * that refuses to feed forward values
 * or backpropagate values.  This is a little
 * wasteful since as it is used it has useless
 * links that go into it.
 * @author Andrew Guillory gtg008g@mail.gatech.edu
 * @version 1.0
 */
public class BackPropagationBiasNode extends BackPropagationNode {
    
    /**
     * A bias node
     * @param bias the bias value to set to
     */
    public BackPropagationBiasNode(double bias) {
        super(null);
        setActivation(bias);
    }

    /**
     * @see nn.FeedForwardNode#feedforward()
     */    
    public void feedforward() { }
    
    /**
     * @see nn.backprop.BackPropagationNode#backpropagate()
     */
    public void backpropagate() { }
    
}