Master Thesis on Tuesday, Oct 04, 2022 at 10:00

Master Thesis on Tuesday Oct 04, 2022 at 10:00 Place: IFISC Seminar Room Title: Deep learning applied to the analysis of dissolved carbon dioxide in coastal areas of the Balearic Sea Speaker: Akshay Tiwari, IFISC Abstract: <p>This work studies the changes in the sea surface dissolved carbon dioxide (CO2 (diss.)) at the Estación de Investigación Costera del Faro de Cap Salines, a pristine site at the Southeastern tip of Mallorca (GPS 3.05457°E, 39.26552°N). More specifically, the dependence of CO2 (diss.) on a number of recorded parameters like atmospheric carbon dioxide (CO2 (atm.)) and temperature rise, which may be the result of direct or increased human activities, is uncovered by the modelling of CO2 (diss.). This modelling of CO2 (diss.), is done with Deep Learning (DL) methods applied to a relatively small ecological dataset and then these DL methods are compared to each other. This work also shows and generalises how DL methods can give reasonable results when applied to small tabular datasets in general. Along with the analysis of different DL methods (Deep Symbolic Regression, Permutation Convolutions and Self-Attention), an architecture based on different methods (Self-Attention, Mish activation function, Ranger optimiser and Learning rate finder), which are selected after reviewing and testing ideas from the literature, is also presented in this work.<br /> Supervisors: Manuel A. Matias and Iris Eline Hendriks<br /> Jury members: Emilio Hernández-García, Miguel C. Soriano, and Manuel A. Matias<br /> The defense will presential, broadcasted through Zoom:<br /> https://us06web.zoom.us/j/87822578801?pwd=VTdqT25GTkQxeGRLb3FHandmcFNjdz09</p> Url event:https://ifisc.uib-csic.es/en/events/seminars/deep-learning-applied-to-the-an...

Dear All, There will also be an IFISC seminar next Wednesday, 5th October, at 14:30. No email automated email announcement went out (mea culpa, forgot to click the necessary boxes). Synchronization in complex networks under uncertainty IFISC SEMINAR Lluís Arola Fernández, IFISC The theory behind the synchronization of network-coupled oscillators is solid and has significantly advanced lately, especially in the mean-field problem. However, real systems have complex interactions that difficult the analytical treatment. Most existing results rely on black-boxes that hinder interpretation and require global information, while available data is usually incomplete. In this seminar, I will overview some results of my PhD thesis motivated by these limitations, including methods to predict the non-linear amplification of noise from network weights to the synchronization onset and the role of dyadic and higher-order interactions in synchrony optimization, a geometric unfolding of the synchronized state which explains the emergence of synchronization bombs, and algebraic shortcuts to find critical points using rank-reduced network models. These tools also unveil some mechanistic explanations that were hidden behind the prevalent assumptions of complete information. Presential seminar, with parallel Zoom stream: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 See also https://ifisc.uib-csic.es/en/events/seminars/synchronization-in-complex-netw... Best wishes Tobias Tobias Galla Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC) @tobiasgalla
participants (2)
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semfis@ifisc.uib-csic.es
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Tobias Galla