Alexey Diomin created FLINK-4148:
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Summary: incorrect calculation distance in QuadTree
Key: FLINK-4148
URL: https://issues.apache.org/jira/browse/FLINK-4148
Project: Flink
Issue Type: Bug
Reporter: Alexey Diomin
Priority: Trivial
https://github.com/apache/flink/blob/master/flink-libraries/flink-ml/src/main/scala/org/apache/flink/ml/nn/QuadTree.scala#L105
Because EuclideanDistanceMetric extends SquaredEuclideanDistanceMetric we
always move in first case and never reach case for math.sqrt(minDist)
correct match first EuclideanDistanceMetric and after it
SquaredEuclideanDistanceMetric
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