Search Results for author: Vincent Zhihao Zheng

Found 4 papers, 0 papers with code

Multivariate Probabilistic Time Series Forecasting with Correlated Errors

no code implementations1 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.

Probabilistic Time Series Forecasting Time Series +1

Better Batch for Deep Probabilistic Time Series Forecasting

no code implementations26 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.

Decision Making Probabilistic Time Series Forecasting +2

Enhancing Deep Traffic Forecasting Models with Dynamic Regression

no code implementations17 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.

regression Time Series +1

Scalable Dynamic Mixture Model with Full Covariance for Probabilistic Traffic Forecasting

no code implementations10 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.

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