23 citations · 32 across the 7 of their papers we have counts for
14 papers
Sleep Staging from Airflow Signals Using Fourier Approximations of Persistence Curves
Shashank Manjunath, Hau-Tieng Wu, Aarti Sathyanarayana
Sleep staging is a challenging task, typically manually performed by sleep technologists based on electroencephalogram and other biosignals of patients taken during overnight sleep…
Landmark Alternating Diffusion
Sing-Yuan Yeh, Hau-Tieng Wu, Ronen Talmon +1
Alternating Diffusion (AD) is a commonly applied diffusion-based sensor fusion algorithm. While it has been successfully applied to various problems, its computational burden remai…
Convergence analysis of t-SNE as a gradient flow for point cloud on a manifold
Seonghyeon Jeong, Hau-Tieng Wu
We present a theoretical foundation regarding the boundedness of the t-SNE algorithm. t-SNE employs gradient descent iteration with Kullback-Leibler (KL) divergence as the objectiv…
Design a Metric Robust to Complicated High Dimensional Noise for Efficient Manifold Denoising
Hau-Tieng Wu
In this manuscript, we propose an efficient manifold denoiser based on landmark diffusion and optimal shrinkage under the complicated high dimensional noise and compact manifold se…
Unveil Sleep Spindles with Concentration of Frequency and Time
Riki Shimizu, Hau-Tieng Wu
Objective: Sleep spindles contain crucial brain dynamics information. We introduce the novel non-linear time-frequency analysis tool 'Concentration of Frequency and Time' (ConceFT)…
Enhancing Missing Data Imputation of Non-stationary Signals with Harmonic Decomposition
Joaquin Ruiz, Hau-tieng Wu, Marcelo A. Colominas
Dealing with time series with missing values, including those afflicted by low quality or over-saturation, presents a significant signal processing challenge. The task of recoverin…