weibozhao commented on a change in pull request #24:
URL: https://github.com/apache/flink-ml/pull/24#discussion_r764663947
##########
File path:
flink-ml-lib/src/main/java/org/apache/flink/ml/classification/knn/Knn.java
##########
@@ -0,0 +1,255 @@
+package org.apache.flink.ml.classification.knn;
+
+import org.apache.flink.api.common.functions.MapFunction;
+import org.apache.flink.api.common.functions.RichMapPartitionFunction;
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.api.common.typeinfo.Types;
+import org.apache.flink.api.java.typeutils.RowTypeInfo;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.ml.api.core.Estimator;
+import org.apache.flink.ml.common.MapPartitionFunctionWrapper;
+import org.apache.flink.ml.linalg.DenseVector;
+import org.apache.flink.ml.param.Param;
+import org.apache.flink.ml.util.ParamUtils;
+import org.apache.flink.ml.util.ReadWriteUtils;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import org.apache.flink.table.api.Table;
+import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+import org.apache.flink.table.api.internal.TableImpl;
+import org.apache.flink.table.catalog.ResolvedSchema;
+import org.apache.flink.table.types.DataType;
+import org.apache.flink.types.Row;
+import org.apache.flink.util.Collector;
+import org.apache.flink.util.Preconditions;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * KNN is to classify unlabeled observations by assigning them to the class of
the most similar
+ * labeled examples.
+ */
+public class Knn implements Estimator<Knn, KnnModel>, KnnParams<Knn> {
+
+ private static final long serialVersionUID = 5292477422193301398L;
+ private static final int ROW_SIZE = 2;
+ private static final int FASTDISTANCE_TYPE_INDEX = 0;
+ private static final int DATA_INDEX = 1;
+
+ protected Map<Param<?>, Object> params = new HashMap<>();
+
+ /** constructor. */
+ public Knn() {
+ ParamUtils.initializeMapWithDefaultValues(params, this);
+ }
+
+ /**
+ * constructor.
+ *
+ * @param params parameters for algorithm.
+ */
+ public Knn(Map<Param<?>, Object> params) {
+ this.params = params;
Review comment:
done
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
