6 citations · 9 across the 3 of their papers we have counts for
3 papers
math.ST2023
Detection problems in the spiked matrix models
Ji Hyung Jung, Hye Won Chung, Ji Oon Lee
We study the statistical decision process of detecting the low-rank signal from various signal-plus-noise type data matrices, known as the spiked random matrix models. We first sho…
math.ST2021★ 3 cited
Detection of Signal in the Spiked Rectangular Models
Ji Hyung Jung, Hye Won Chung, Ji Oon Lee
We consider the problem of detecting signals in the rank-one signal-plus-noise data matrix models that generalize the spiked Wishart matrices. We show that the principal component…
math.ST2020★ 6 cited
Weak Detection in the Spiked Wigner Model with General Rank
Ji Hyung Jung, Hye Won Chung, Ji Oon Lee
We study the statistical decision process of detecting the signal from a `signal+noise' type matrix model with an additive Wigner noise. We propose a hypothesis test based on the l…