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Apache Ignite® is a Distributed Database For High-Performance Computing With In-Memory Speed.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
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package org.apache.ignite.ml.knn.classification;

/** This enum contains settings for kNN algorithm. */
public enum KNNStrategy {
    /** The default strategy. All k neighbors have the same weight which is independent
     * on their distance to the query point.*/
    SIMPLE,

    /** A refinement of the k-NN classification algorithm is to weigh the contribution of each of the k neighbors
     * according to their distance to the query point, giving greater weight to closer neighbors. */
    WEIGHTED
}