SquareNeighbourhood.java

  1. /*
  2.  * Licensed to the Apache Software Foundation (ASF) under one or more
  3.  * contributor license agreements.  See the NOTICE file distributed with
  4.  * this work for additional information regarding copyright ownership.
  5.  * The ASF licenses this file to You under the Apache License, Version 2.0
  6.  * (the "License"); you may not use this file except in compliance with
  7.  * the License.  You may obtain a copy of the License at
  8.  *
  9.  *      http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */

  17. package org.apache.commons.math4.neuralnet;

  18. /**
  19.  * Defines neighbourhood types.
  20.  *
  21.  * @since 3.3
  22.  */
  23. public enum SquareNeighbourhood {
  24.     /**
  25.      * <a href="http://en.wikipedia.org/wiki/Von_Neumann_neighborhood">
  26.      *  Von Neumann neighbourhood</a>: in two dimensions, each (internal)
  27.      * neuron has four neighbours.
  28.      */
  29.     VON_NEUMANN,
  30.     /**
  31.      * <a href="http://en.wikipedia.org/wiki/Moore_neighborhood">
  32.      *  Moore neighbourhood</a>: in two dimensions, each (internal)
  33.      * neuron has eight neighbours.
  34.      */
  35.     MOORE,
  36. }