Papers › Dual Encoding U-Net for Spatio-Temporal Domain Shift Frame Prediction

Dual Encoding U-Net for Spatio-Temporal Domain Shift Frame Prediction

21 Oct 2021arXiv:2110.11140archive 2025-07-28

Jay Santokhi, Dylan Hillier, Yiming Yang, Joned Sarwar, Anna Jordan, Emil Hewage

The landscape of city-wide mobility behaviour has altered significantly over the past 18 months. The ability to make accurate and reliable predictions on such behaviour has likewise changed drastically with COVID-19 measures impacting how populations across the world interact with the different facets of mobility. This raises the question: "How does one use an abundance of pre-covid mobility data to make predictions on future behaviour in a present/post-covid environment?" This paper seeks to address this question by introducing an approach for traffic frame prediction using a lightweight Dual-Encoding U-Net built using only 12 Convolutional layers that incorporates a novel approach to skip-connections between Convolutional LSTM layers. This approach combined with an intuitive handling of training data can model both a temporal and spatio-temporal domain shift (gitlab.com/alchera/alchera-traffic4cast-2021).

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iarai/NeurIPS2021-traffic4cast officialmentioned in papermentioned on GitHubpytorchApache-2.0 report

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Concatenated Skip ConnectionConvolutionLSTMMax PoolingReLUSigmoid ActivationTanh ActivationU-Net

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