3 papers
math.ST2025
Signal detection from spiked noise via asymmetrization
Zhigang Bao, Kha Man Cheong, Jaehun Lee +1
The signal plus noise model is a fundamental model in signal detection when a low rank signal is polluted by noise . In the high-dimensional setting, one often uses…
math.ST2025
A leave-one-out approach to approximate message passing
Zhigang Bao, Qiyang Han, Xiaocong Xu
Approximate message passing (AMP) has emerged both as a popular class of iterative algorithms and as a powerful analytic tool in a wide range of statistical estimation problems and…
math.PR2024
Phase transition for the bottom singular vector of rectangular random matrices
Zhigang Bao, Jaehun Lee, Xiaocong Xu
In this paper, we consider the rectangular random matrix whose entries are iid with tail for some …