| package com.yahoo.labs.samoa.learners.classifiers.trees; |
| |
| /* |
| * #%L |
| * SAMOA |
| * %% |
| * Copyright (C) 2013 Yahoo! Inc. |
| * %% |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * #L% |
| */ |
| |
| import com.yahoo.labs.samoa.instances.Instance; |
| |
| /** |
| * Class that represents inactive learning node. Inactive learning node is a node which only keeps track of the observed |
| * class distribution. It does not store the statistic for splitting the node. |
| * |
| * @author Arinto Murdopo |
| * |
| */ |
| final class InactiveLearningNode extends LearningNode { |
| |
| /** |
| * |
| */ |
| private static final long serialVersionUID = -814552382883472302L; |
| |
| InactiveLearningNode(double[] initialClassObservation) { |
| super(initialClassObservation); |
| } |
| |
| @Override |
| void learnFromInstance(Instance inst, ModelAggregatorProcessor proc) { |
| this.observedClassDistribution.addToValue( |
| (int) inst.classValue(), inst.weight()); |
| } |
| |
| @Override |
| double[] getClassVotes(Instance inst, ModelAggregatorProcessor map) { |
| return this.observedClassDistribution.getArrayCopy(); |
| } |
| |
| } |