Github user geobmx540 commented on a diff in the pull request:
https://github.com/apache/lucenenet/pull/26#discussion_r21422007
--- Diff: src/Lucene.Net.Classification/KNearesteighborClassifier.cs ---
@@ -0,0 +1,150 @@
+/*
+ * 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.
+ */
+
+namespace Lucene.Net.Classification
+{
+ using Lucene.Net.Analysis;
+ using Lucene.Net.Index;
+ using Lucene.Net.Queries.Mlt;
+ using Lucene.Net.Search;
+ using Lucene.Net.Util;
+ using System;
+ using System.Collections.Generic;
+ using System.IO;
+
+ /// <summary>
+ /// A k-Nearest Neighbor classifier (see
<code>http://en.wikipedia.org/wiki/K-nearest_neighbors</code>) based
+ /// on {@link MoreLikeThis}
+ ///
+ /// @lucene.experimental
+ /// </summary>
+ public class KNearestNeighborClassifier : Classifier<BytesRef>
+ {
+
+ private MoreLikeThis _mlt;
+ private String[] _textFieldNames;
+ private String _classFieldName;
+ private IndexSearcher _indexSearcher;
+ private readonly int _k;
+ private Query _query;
+
+ private int _minDocsFreq;
+ private int _minTermFreq;
+
+ /// <summary>Create a {@link Classifier} using kNN
algorithm</summary>
+ /// <param name="k">the number of neighbors to analyze as an
<code>int</code></param>
+ public KNearestNeighborClassifier(int k)
+ {
+ this._k = k;
+ }
+
+ /// <summary>Create a {@link Classifier} using kNN
algorithm</summary>
+ /// <param name="k">the number of neighbors to analyze as an
<code>int</code></param>
+ /// <param name="minDocsFreq">the minimum number of docs frequency
for MLT to be set with {@link MoreLikeThis#setMinDocFreq(int)}</param>
+ /// <param name="minTermFreq">the minimum number of term frequency
for MLT to be set with {@link MoreLikeThis#setMinTermFreq(int)}</param>
+ public KNearestNeighborClassifier(int k, int minDocsFreq, int
minTermFreq)
+ {
+ this._k = k;
--- End diff --
intend
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