3 papers
physics.optics2025
Incorporating rank-free coupling and external field via an incoherent modulated spatial photonic Ising machine
Ze Zheng, Yuegang Li, Hang Xu +3
Spatial photonic Ising machines offer a novel optical platform for optimization and spin-model simulation, but existing diffraction-based schemes rely on auxiliary spins or multipl…
math.OC2024
Nonconvex Deterministic Matrix Completion by Projected Gradient Descent Methods
Hang Xu, Song Li, Junhong Lin
We study deterministic matrix completion problem, i.e., recovering a low-rank matrix from a few observed entries where the sampling set is chosen as the edge set of a Ramanujan gra…
math.ST2023
Adversarial Phase Retrieval via Nonlinear Least Absolute Deviation
Gao Huang, Song Li, Hang Xu
We investigate the phase retrieval problem perturbed by dense bounded noise and sparse outliers that can change an adversarially chosen -fraction of the measurement vector. The…