[jira] [Created] (FLINK-4148) incorrect calculation distance in QuadTree

[Shang Yuanchun (Jira)]

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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