Search Results for author: Nathaël Da Costa

Found 3 papers, 0 papers with code

Sample Path Regularity of Gaussian Processes from the Covariance Kernel

no code implementations22 Dec 2023 Nathaël Da Costa, Marvin Pförtner, Lancelot Da Costa, Philipp Hennig

While applications of GPs are myriad, a comprehensive understanding of GP sample paths, i. e. the function spaces over which they define a probability measure, is lacking.

Gaussian Processes

Differential geometry with extreme eigenvalues in the positive semidefinite cone

no code implementations14 Apr 2023 Cyrus Mostajeran, Nathaël Da Costa, Graham Van Goffrier, Rodolphe Sepulchre

Differential geometric approaches to the analysis and processing of data in the form of symmetric positive definite (SPD) matrices have had notable successful applications to numerous fields including computer vision, medical imaging, and machine learning.

The Gaussian kernel on the circle and spaces that admit isometric embeddings of the circle

no code implementations21 Feb 2023 Nathaël Da Costa, Cyrus Mostajeran, Juan-Pablo Ortega

On Euclidean spaces, the Gaussian kernel is one of the most widely used kernels in applications.

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