Papers by Edgar Arguelles Bernal
Infectio, 2011
Cupriavidus pauculus es un bacilo Gram negativo con metabolismo oxidativo, que se ha aislado de m... more Cupriavidus pauculus es un bacilo Gram negativo con metabolismo oxidativo, que se ha aislado de muestras de agua y suelo, pero raramente de persido pacientes con algún tipo de inmunosupresión, sometidos a procedimientos invasivos, especialmente de tipo vascular, y que han requerido múltiple manejo antibiótico. Cupriavidus pauculus ha mostrado baja virulencia y sensibilidad antibiótica, principalmente a trimetoprim-sulfametoxazol, con infección de tejidos blandos y a quien se le diagnosticó bacteriemia asociada a catéter por C. pauculus durante la hospitalización.
Physical review. E, 2018
Training an artificial neural network involves an optimization process over the landscape defined... more Training an artificial neural network involves an optimization process over the landscape defined by the cost (loss) as a function of the network parameters. We explore these landscapes using optimization tools developed for potential energy landscapes in molecular science. The number of local minima and transition states (saddle points of index one), as well as the ratio of transition states to minima, grow rapidly with the number of nodes in the network. There is also a strong dependence on the regularization parameter, with the landscape becoming more convex (fewer minima) as the regularization term increases. We demonstrate that in our formulation, stationary points for networks with N_{h} hidden nodes, including the minimal network required to fit the XOR data, are also stationary points for networks with N_{h}+1 hidden nodes when all the weights involving the additional node are zero. Hence, smaller networks trained on XOR data are embedded in the landscapes of larger networks...
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Papers by Edgar Arguelles Bernal