[SPARK-17057] [ML] ProbabilisticClassifierModels' prediction more reasonable with multi zero thresholds#14949

Closed

srowen wants to merge 2 commits intoapache:masterfrom

srowen:SPARK-17057.2

Commits on Sep 3, 2016

Revise semantics of ProbabilisticClassifierModel thresholds so that classes can only be predicted if they exceed their threshold (meaning no class may be predicted), and otherwise ordering by highe…
srowen
committed
Update MultinomialLogisticRegression test output to match new threshold meaning
srowen
committed