dongjoon-hyun commented on a change in pull request #32648:
URL: https://github.com/apache/spark/pull/32648#discussion_r638513891
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File path:
mllib/src/main/scala/org/apache/spark/mllib/evaluation/MultilabelMetrics.scala
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@@ -178,7 +178,11 @@ private[evaluation] class MultilabelSummarizer extends
Serializable {
* @return This MultilabelSummarizer object.
*/
def add(predictions: Array[Double], labels: Array[Double]): this.type = {
- val intersection = predictions.intersect(labels)
+ val intersection = if (predictions.isEmpty || labels.isEmpty) {
Review comment:
Thank you for filing the upstream issue. Ya, it looks like a breaking
behavior change.
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