no code implementations • 1 Feb 2024 • Vincent Zhihao Zheng, Lijun Sun
Modeling the correlations among errors is closely associated with how accurately the model can quantify predictive uncertainty in probabilistic time series forecasting.
no code implementations • 26 May 2023 • Vincent Zhihao Zheng, Seongjin Choi, Lijun Sun
Our method constructs a mini-batch as a collection of $D$ consecutive time series segments for model training.
no code implementations • 17 Jan 2023 • Vincent Zhihao Zheng, Seongjin Choi, Lijun Sun
A common assumption in deep learning-based multivariate and multistep traffic time series forecasting models is that residuals are independent, isotropic, and uncorrelated in space and time.
no code implementations • 10 Dec 2022 • Seongjin Choi, Nicolas Saunier, Vincent Zhihao Zheng, Martin Trepanier, Lijun Sun
Deep learning-based multivariate and multistep-ahead traffic forecasting models are typically trained with the mean squared error (MSE) or mean absolute error (MAE) as the loss function in a sequence-to-sequence setting, simply assuming that the errors follow an independent and isotropic Gaussian or Laplacian distributions.