Learning Spatiotemporal Dynamical Systems from Point Process Observations
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A4 Artikkeli konferenssijulkaisussa
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en
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21
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13th International Conference on Learning Representations, ICLR 2025, pp. 5426-5446
Abstract
Spatiotemporal dynamics models are fundamental for various domains, from heat propagation in materials to oceanic and atmospheric flows. However, currently available neural network-based spatiotemporal modeling approaches fall short when faced with data that is collected randomly over time and space, as is often the case with sensor networks in real-world applications like crowdsourced earthquake detection or pollution monitoring. In response, we developed a new method that can effectively learn spatiotemporal dynamics from such point process observations. Our model integrates techniques from neural differential equations, neural point processes, implicit neural representations and amortized variational inference to model both the dynamics of the system and the probabilistic locations and timings of observations. It outperforms existing methods on challenging spatiotemporal datasets by offering substantial improvements in predictive accuracy and computational efficiency, making it a useful tool for modeling and understanding complex dynamical systems observed under realistic, unconstrained conditions.Description
Publisher Copyright: © 2025 13th International Conference on Learning Representations, ICLR 2025. All rights reserved.
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Iakovlev, V & Lähdesmäki, H 2025, Learning Spatiotemporal Dynamical Systems from Point Process Observations. in 13th International Conference on Learning Representations, ICLR 2025. Curran Associates Inc., pp. 5426-5446, International Conference on Learning Representations, Singapore, Singapore, 24/04/2025. < https://openreview.net/forum?id=37EXtKCOkn >