3 papers
econ.EM2024
On the Ollivier-Ricci curvature as fragility indicator of the stock markets
Joaquín Sánchez García, Sebastian Gherghe
Recently, an indicator for stock market fragility and crash size in terms of the Ollivier-Ricci curvature has been proposed. We study analytical and empirical properties of such in…
stat.ML2024
On the impact of measure pre-conditionings on general parametric ML models and transfer learning via domain adaptation
Joaquín Sánchez García
We study a new technique for understanding convergence of learning agents under small modifications of data. We show that such convergence can be understood via an analogue of Fato…
math.AP2022
Minimizing movement scheme for intrinsic aggregation on compact Riemannian manifolds
Joaquín Sánchez García
Recently solutions to the aggregation equation on compact Riemannian Manifolds have been studied with different techniques. This work demonstrates the small time existence of measu…