Results 121 to 130 of about 2,417 (212)
Chaos and the reparametrization mode on the AdS$_2$ string
, 2023 We study the holographic correlators corresponding to scattering of fluctuations of an open string worldsheet with AdS$_2$ geometry. In the out-of-time-order configuration, the correlators display a Lyapunov growth that saturates the chaos bound. We show
Giombi, Simone +2 more
core
Faster Optimization on Sparse Graphs via Neural Reparametrization
, 2022 In mathematical optimization, second-order Newton's methods generally converge faster than first-order methods, but they require the inverse of the Hessian, hence are computationally expensive.
Long, Jianzhi +3 more
core
Symmetries in the Hamiltonian Formulation of String Theory
Advances in High Energy PhysicsIn the context of the Hamiltonian formulation of string theory, a widely acknowledged issue is the inability of the first-class constraints to accurately reproduce the Lagrangian symmetry transformations.
Héctor A. Benítez, René Negrón
doaj +1 more source
Reparametrization mode Ward Identities and chaos in higher-pt. correlators in CFT$_2$
, 2023 Recently introduced reparametrization mode operators in CFTs have been shown to govern stress tensor interactions $via$ the shadow operator formalism and seem to govern the effective dynamics of chaotic systems.
Patra, Ayan K. +2 more
core
Signature methods for brain-computer interfaces. [PDF]
Sci Rep, 2023 Xu X, Lee D, Drougard N, Roy RN.
europepmc +1 more source
Reparametrizing the Antecedent Moisture Model
Journal of Water Management ModelingDeveloping simple and accurate hydrologic models for wet-weather sanitary sewer flow has long been enigmatic for the engineering community. Hydrologic models suitable for surface water hydrology often perform poorly when simulating sanitary sewer hydrology when they do not account for antecedent moisture conditions and seasonality.
David Edgren +2 more
openaire +1 more source
On the Use of Online Reparametrization in Automated Platforms for Kinetic Model Identification [PDF]
, 2019 Parameter estimation algorithms integrated in automated platforms for kinetic model identification are required to solve two optimization problems: i) a parameter estimation problem given the available samples; ii) a model-based design of experiments ...
Gavriilidis, A +6 more
core
WLreg: A new re-parametrization of the Weighted Lindley distribution and its regression model.
PLoS ONEA novel re-parametrization of the weighted Lindley distribution is introduced to develop a regression model suitable for skewed dependent variables defined on [Formula: see text]. This new model is called the WL2 regression model.
Emrah Altun +2 more
doaj +1 more source
State estimation of a physical system with unknown governing equations. [PDF]
Nature, 2023 Course K, Nair PB.
europepmc +1 more source