Siddharth Murching created SPARK-21770:
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Summary: ProbabilisticClassificationModel: Improve normalization
of all-zero raw predictions
Key: SPARK-21770
URL: https://issues.apache.org/jira/browse/SPARK-21770
Project: Spark
Issue Type: Improvement
Components: ML
Affects Versions: 2.3.0
Reporter: Siddharth Murching
Priority: Minor
Given a raw prediction vector of all-zeros,
ProbabilisticClassifierModel.normalizeToProbabilitiesInPlace() should output a
probability vector that predicts each class with equal probability (1 /
numClasses).
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