Neural Flows: Efficient Alternative to Neural ODEs
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Abstract (arXiv)
Neural ordinary differential equations describe how values change in time. This is the reason why they gained importance in modeling sequential data, especially when the observations are made at irregular intervals. In this paper we propose an alternative by directly modeling the solution curves - the flow of an ODE - with a neural network. This immediately eliminates the need for expensive numerical solvers while still maintaining the modeling capability of neural ODEs. We propose several flow architectures suitable for different applications by establishing precise conditions on when a function defines a valid flow. Apart from computational efficiency, we also provide empirical evidence of favorable generalization performance via applications in time series modeling, forecasting, and density estimation.
Key facts. Cited by 99 papers in the map (data through 7 Oct 2026). Builds on 56 of its 87 references that are in the map. First posted on arXiv 25 Oct 2021.
Builds on
56 of 87 references.
References · 56
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