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Can we add monotonic constraint in updater_histmaker? #4063

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Liuhaoge opened this issue Jan 18, 2019 · 1 comment
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Can we add monotonic constraint in updater_histmaker? #4063

Liuhaoge opened this issue Jan 18, 2019 · 1 comment

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@Liuhaoge
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In a distributed setting, the implicit updater sequence value would be adjusted to grow_histmaker,prune. So can we add monotonic constraint in grow_histmaker? Why there are no parameter about the monotonic constraint in grow_histmaker?
@hcho3 hcho3 mentioned this issue Jan 18, 2019
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@hcho3
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hcho3 commented Jan 18, 2019

#4011 will enable grow_quantile_histmaker for distributed learning and then you’ll be able to use monotonic constraints

@hcho3 hcho3 closed this as completed Jan 18, 2019
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@hcho3 @Liuhaoge