Results 1 to 10 of about 1,170 (186)

Reparametrization of the Colle–Salvetti formula [PDF]

Royal Society Open Science, 2022
We investigate the Colle–Salvetti (CS) formula, the basis of the Lee, Yang and Parr (LYP) correlation functional used in approximate density functional theory.
Adam L. Baskerville, Msugh Targema, Hazel Cox   +2 more
doaj   +4 more sources

Perfect Density Models Cannot Guarantee Anomaly Detection [PDF]

Entropy, 2021
Thanks to the tractability of their likelihood, several deep generative models show promise for seemingly straightforward but important applications like anomaly detection, uncertainty estimation, and active learning.
Charline Le Lan, Laurent Dinh
doaj   +2 more sources

Bayesian Methods for Step-Stress Accelerated Test under Gamma Distribution with a Useful Reparametrization and an Industrial Data Application

Mathematics
This paper presents a multiple step-stress accelerated life test using type II censoring. Assuming that the lifetimes of the test item follow the gamma distribution, the maximum likelihood estimation and Bayesian approaches are used to estimate the ...
Moala F A, Hassan Bakouch, Olayan Albalawi   +2 more
exaly   +3 more sources

Normal and equivolumetric coordinate systems for cortical areas [PDF]

MethodsX
We describe coordinate systems adapted for the space between two surfaces, such as those delineating the highly folded cortex in mammalian brains.
Laurent Younes, Kwame S. Kutten, J. Tilak Ratnanather   +2 more
doaj   +2 more sources

The μ-Basis of Improper Rational Parametric Surface and Its Application

Mathematics, 2021
The μ-basis is a newly developed algebraic tool in curve and surface representations and it is used to analyze some essential geometric properties of curves and surfaces.
Sonia Pérez-Díaz, Li-Yong Shen
doaj   +1 more source

The Burr XII Autoregressive Moving Average Model

Computer Sciences & Mathematics Forum, 2023
The present work proposes a new class of model for random variables with support in the positive real line, this model explains the conditional quantile and is an alternative for modeling data that indicate asymmetric behavior and heavy tails. We present
Fernando José Monteiro de Araújo, Renata Rojas Guerra, Fernando Arturo Peña-Ramírez   +2 more
doaj   +1 more source

Reparametrization modes in 2d CFT and the effective theory of stress tensor exchanges

Journal of High Energy Physics, 2021
We study the origin of the recently proposed effective theory of stress tensor exchanges based on reparametrization modes, that has been used to efficiently compute Virasoro identity blocks at large central charge.
Kevin Nguyen
doaj   +1 more source

Fast-forward scheme reexamined: Choice of time and quantization

Results in Physics, 2022
The fast-forward scheme for accelerating time evolution of quantum states through change of time is reexamined. Dirac’s homogeneous formalism for classical dynamics and canonical quantization warrant that the Schrödinger equation is covariant under ...
Sumiyoshi Abe
doaj   +1 more source

Virasoro blocks and the reparametrization formalism

Journal of High Energy Physics, 2023
An effective theory designed to compute Virasoro identity blocks at large central charge, expressed in terms of the propagation of a reparametrization/shadow mode between bilocal vertices, was recently put forward.
Kevin Nguyen
doaj   +1 more source

Non-local reparametrization action in coupled Sachdev-Ye-Kitaev models

Journal of High Energy Physics, 2021
We continue the investigation of coupled Sachdev-Ye-Kitaev (SYK) models without Schwarzian action dominance. Like the original SYK, at large N and low energies these models have an approximate reparametrization symmetry.
Alexey Milekhin
doaj   +1 more source