[jvm-packages] Add rank:ndcg and rank:map to Spark supported objectives #3697
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hcho3
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LGTM, merged, thanks! |
CodingCat
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alois-bissuel
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According to the Learning Task Parameters documentation,
rank:ndcgandrank:maplearning objectives should be available.There is a little discussion about if there was any specific reason why these objectives were previously omitted here and here.