534 citations · 2k across the 96 of their papers we have counts for
8 papers · 1 filter
When Scattering Transform Meets Non-Gaussian Random Processes, a Double Scaling Limit Result
Gi-Ren Liu, Yuan-Chung Sheu, Hau-Tieng Wu
We explore the finite dimensional distributions of the second-order scattering transform of a class of non-Gaussian processes when all the scaling parameters go to infinity simulta…
Fundamental component enhancement via adaptive nonlinear activation functions
Stefan Steinerberger, Hau-Tieng Wu
In many real world oscillatory signals, the fundamental component of a signal might be weak or does not exist. This makes it difficult to estimate the instantaneous frequenc…
Disentangling modes with crossover instantaneous frequencies by synchrosqueezed chirplet transforms, from theory to application
Ziyu Chen, Hau-Tieng Wu
Analysis of signals with oscillatory modes with crossover instantaneous frequencies is a challenging problem in time series analysis. One way to handle this problem is lifting the…
How do kernel-based sensor fusion algorithms behave under high dimensional noise?
Xiucai Ding, Hau-Tieng Wu
We study the behavior of two kernel based sensor fusion algorithms, nonparametric canonical correlation analysis (NCCA) and alternating diffusion (AD), under the nonnull setting th…
Eigenvector Phase Retrieval: Recovering eigenvectors from the absolute value of their entries
Stefan Steinerberger, Hau-Tieng Wu
We consider the eigenvalue problem where and the eigenvalue is also real . If we are given , and, additionally, th…
Asymptotic Analysis of Higher-order Scattering Transform of Gaussian Processes
Gi-Ren Liu, Yuan-Chung Sheu, Hau-Tieng Wu
We analyze the scattering transform with the quadratic nonlinearity (STQN) of Gaussian processes without depth limitation. STQN is a nonlinear transform that involves a sequential…
Prenatal stress perturbs fetal iron homeostasis in a sex-specific manner
Peter Zimmermann, Marta C. Antonelli, Ritika Sharma +7
What is the influence of chronic maternal prenatal stress (PS) on fetal iron homeostasis? In a prospective case-control study in 164 pregnant women, we show that cord blood transfe…
An Efficient Forecasting Approach to Reduce Boundary Effects in Real-Time Time-Frequency Analysis
Adrien Meynard, Hau-Tieng Wu
Time-frequency (TF) representations of time series are intrinsically subject to the boundary effects. As a result, the structures of signals that are highlighted by the representat…