由于我之前的实习与滴滴的业务还是比较相关的，于是重点在实习经历上，由于我用到了相关的机器学习的模型，面试官问了些具体的业务实现之后，再从LR和Xgboost出发。 （1）我们one-hot编码的特征过于稀疏如何解决？会影响最后的模型效果嘛？ （2）介绍下你 ...

Commercial-off-the-shelf operating systems (COTS OSs) are increasingly chosen as key building blocks in embedded system design due to their rich feature-set available at low costs. Unfortunately, as ...