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math.NA2024
Geometric statistics with subspace structure preservation for SPD matrices
Cyrus Mostajeran, Nathaël Da Costa, Graham Van Goffrier +1
We present a geometric framework for the processing of SPD-valued data that preserves subspace structures and is based on the efficient computation of extreme generalized eigenvalu…
math.NA2018
Geometric distance between positive definite matrices of different dimensions
Lek-Heng Lim, Rodolphe Sepulchre, Ke Ye
We show how the Riemannian distance on , the cone of real symmetric or complex Hermitian positive definite matrices, may be used to naturally define…
math.NA2014
Proceedings of the second "international Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST'14)
L. Jacques, C. De Vleeschouwer, Y. Boursier +64
The implicit objective of the biennial "international - Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST) is to foster collaboration between interna…