Search Results for author: Filippo Bigi

Found 4 papers, 1 papers with code

Wigner kernels: body-ordered equivariant machine learning without a basis

no code implementations7 Mar 2023 Filippo Bigi, Sergey N. Pozdnyakov, Michele Ceriotti

Machine-learning models based on a point-cloud representation of a physical object are ubiquitous in scientific applications and particularly well-suited to the atomic-scale description of molecules and materials.

Formation Energy

Fast evaluation of spherical harmonics with sphericart

1 code implementation16 Feb 2023 Filippo Bigi, Guillaume Fraux, Nicholas J. Browning, Michele Ceriotti

Spherical harmonics provide a smooth, orthogonal, and symmetry-adapted basis to expand functions on a sphere, and they are used routinely in physical and theoretical chemistry as well as in different fields of science and technology, from geology and atmospheric sciences to signal processing and computer graphics.

A smooth basis for atomistic machine learning

no code implementations5 Sep 2022 Filippo Bigi, Kevin Huguenin-Dumittan, Michele Ceriotti, David E. Manolopoulos

Machine learning frameworks based on correlations of interatomic positions begin with a discretized description of the density of other atoms in the neighbourhood of each atom in the system.

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