In this work, we present an approach for the exploration of low-dimensional effective potential landscapes. Making use of extrapolation in a low dimensional space of automatically learned variables (i.e. Diffusion Maps - DMAPs - variables) and machine learning schemes (e.g. Geometric Harmonics - GH) for lifting the new points into the ambient space, the described method enables to escape from local potential wells towards new minima. A simple three-dimensional stochastic differential equation system with a non-linear two-dimensional attractive manifold is considered for illustration purposes.

Systematic exploration of energy landscapes in stochastic simulators / Chiavazzo, Eliodoro; Gear, William; Kevrekidis, Yannis. - ELETTRONICO. - (2015). (Intervento presentato al convegno 5th Annual International Workshop on Model Reduction in Reacting Flows IWMRRF tenutosi a Brandenburg University of Technology, Cottbus, Germany nel 28 June - 1 July, 2015).

Systematic exploration of energy landscapes in stochastic simulators

CHIAVAZZO, ELIODORO;
2015

Abstract

In this work, we present an approach for the exploration of low-dimensional effective potential landscapes. Making use of extrapolation in a low dimensional space of automatically learned variables (i.e. Diffusion Maps - DMAPs - variables) and machine learning schemes (e.g. Geometric Harmonics - GH) for lifting the new points into the ambient space, the described method enables to escape from local potential wells towards new minima. A simple three-dimensional stochastic differential equation system with a non-linear two-dimensional attractive manifold is considered for illustration purposes.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2630091
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