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This model(logic regression) support multi-classification?

Hi ~ Could you provide more detailed model information and error message? Have a nice day.

确定XGBoost的最优学习轮次，已训练好的XGBoost模型怎么再进行优化

> 联邦学习中的xgb，ss-xgb和联邦学习中的xgb在调参方面有什么不同吗本质上没有什么不同，都是参照经典的Xgboost来做的参数设定，不过在性能上会有不同的表现，联邦总体来说比MPC(ss-xgb)性能更好一点，具体参数请参阅： https://www.secretflow.org.cn/docs/secretflow/latest/zh-Hans/source/secretflow.ml.boost.ss_xgb_v#secretflow.ml.boost.ss_xgb_v.model.Xgb https://www.secretflow.org.cn/docs/secretflow/latest/zh-Hans/source/secretflow.ml.boost.sgb_v#secretflow.ml.boost.sgb_v.sgb.Sgb

Have you considered implementing ABY2.0 protocol?

> Thanks for pointing these codes, it's really helpful! But it seems not the 3- and 4-input AND gates introduced by `ABY2`. Maybe i'm wrong, i will learn your code...