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06/14/2023
Graph-Based Matrix Completion Applied to Weather Data
Low-rank matrix completion is the task of recovering unknown entries of ...
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03/29/2023
Infeasible Deterministic, Stochastic, and Variance-Reduction Algorithms for Optimization under Orthogonality Constraints
Orthogonality constraints naturally appear in many machine learning prob...
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03/28/2023
First-order optimization on stratified sets
We consider the problem of minimizing a differentiable function with loc...
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08/25/2022
An apocalypse-free first-order low-rank optimization algorithm with at most one rank reduction attempt per iteration
We consider the problem of minimizing a differentiable function with loc...
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02/18/2022
Comparison of an Apocalypse-Free and an Apocalypse-Prone First-Order Low-Rank Optimization Algorithm
We compare two first-order low-rank optimization algorithms, namely P^2G...
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01/11/2022
On the continuity of the tangent cone to the determinantal variety
Tangent and normal cones play an important role in constrained optimizat...
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01/11/2022
An apocalypse-free first-order low-rank optimization algorithm
We consider the problem of minimizing a differentiable function with loc...
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11/27/2020
A Grassmann Manifold Handbook: Basic Geometry and Computational Aspects
The Grassmann manifold of linear subspaces is important for the mathemat...
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08/28/2020
Alternating minimization algorithms for graph regularized tensor completion
We consider a low-rank tensor completion (LRTC) problem which aims to re...
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07/20/2020
Assessment of COVID-19 hospitalization forecasts from a simplified SIR model
We propose the SH model, a simplified version of the well-known SIR comp...
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04/25/2020
Low-rank multi-parametric covariance identification
We propose a differential geometric construction for families of low-ran...
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03/27/2020
On a minimum enclosing ball of a collection of linear subspaces
This paper concerns the minimax center of a collection of linear subspac...
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02/11/2019
Equivalent Polyadic Decompositions of Matrix Multiplication Tensors
Invariance transformations of polyadic decompositions of matrix multipli...
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12/11/2018
Blended smoothing splines on Riemannian manifolds
We present a method to compute a fitting curve B to a set of data points...
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09/14/2016
Proceedings of the third "international Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST'16)
The third edition of the "international - Traveling Workshop on Interact...
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10/02/2014
Proceedings of the second "international Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST'14)
The implicit objective of the biennial "international - Traveling Worksh...
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08/23/2013