Rory Mitchell 088bb4b27c

Prevent multiclass Hessian approaching 0 (#3304) ...

* Prevent Hessian in multiclass objective becoming zero

* Set default learning rate to 0.5 for "coord_descent" linear updater

2018-05-09 20:25:51 +12:00

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test_linear.cc

Prevent multiclass Hessian approaching 0 (#3304)

2018-05-09 20:25:51 +12:00