Search Results for author: Luca Guastoni

Found 4 papers, 0 papers with code

Easy attention: A simple self-attention mechanism for transformer-based time-series reconstruction and prediction

no code implementations24 Aug 2023 Marcial Sanchis-Agudo, Yuning Wang, Luca Guastoni, Karthik Duraisamy, Ricardo Vinuesa

To improve the robustness of transformer neural networks used for temporal-dynamics prediction of chaotic systems, we propose a novel attention mechanism called easy attention which we demonstrate in time-series reconstruction and prediction.

Temporal Sequences Time Series

Predicting the temporal dynamics of turbulent channels through deep learning

no code implementations2 Mar 2022 Giuseppe Borrelli, Luca Guastoni, Hamidreza Eivazi, Philipp Schlatter, Ricardo Vinuesa

Alternative reduced-order models (ROMs), based on the identification of different turbulent structures, are explored and they continue to show a good potential in predicting the temporal dynamics of the minimal channel.

Time Series Analysis

Recurrent neural networks and Koopman-based frameworks for temporal predictions in a low-order model of turbulence

no code implementations1 May 2020 Hamidreza Eivazi, Luca Guastoni, Philipp Schlatter, Hossein Azizpour, Ricardo Vinuesa

We also observe that using a loss function based only on the instantaneous predictions of the chaotic system can lead to suboptimal reproductions in terms of long-term statistics.

Model Selection

On the use of recurrent neural networks for predictions of turbulent flows

no code implementations4 Feb 2020 Luca Guastoni, Prem A. Srinivasan, Hossein Azizpour, Philipp Schlatter, Ricardo Vinuesa

We also observe that using a loss function based only on the instantaneous predictions of the flow may not lead to the best predictions in terms of turbulence statistics, and it is necessary to define a stopping criterion based on the computed statistics.

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