TL;DR本文提出了一种新的初始化过程,该过程基于找到适当矩阵的前两个特征向量,并表明具有这种方法下的重采样 EM 算法在自然假设前提下可以收敛到正确的向量,其样本复杂度几乎是最佳的。
Abstract
mixed linear regression involves the recovery of two (or more) unknown
vectors from unlabeled linear measurements; that is, where each sample comes
from exactly one of the vectors, but we do not know which one. It is a classic
problem, and the natural and empirically most popular appro