31 citations · 33 across the 9 of their papers we have counts for
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stat.ME2023★ 1 cited
Difference-based covariance matrix estimate in time series nonparametric regression with applications to specification tests
Lujia Bai, Weichi Wu
Long-run covariance matrix estimation is the building block of time series inference. The corresponding difference-based estimator, which avoids detrending, has attracted considera…
stat.ME2023
Time-varying correlation network analysis of non-stationary multivariate time series with complex trends
Lujia Bai, Weichi Wu
This paper proposes a flexible framework for inferring large-scale time-varying and time-lagged correlation networks from multivariate or high-dimensional non-stationary time serie…
cs.LG2023★ 31 cited
UniPC: A Unified Predictor-Corrector Framework for Fast Sampling of Diffusion Models
Wenliang Zhao, Lujia Bai, Yongming Rao +2
Diffusion probabilistic models (DPMs) have demonstrated a very promising ability in high-resolution image synthesis. However, sampling from a pre-trained DPM is time-consuming due…