"Stochastic Volatility Model with Leverage and Asymmetrically Heavy-Tailed Error Using GH Skew Student's t-Distribution Models" [PDF]
Bayesian analysis of a stochastic volatility model with a generalized hyperbolic (GH) skew Student's t-error distribution is described where we first consider an asymmetric heavy-tailed error and leverage effects.
Jouchi Nakajima, Yasuhiro Omori
core
A generalized skew two-piece skew-normal distribution
Skew-normal distribution, Generalized skew-normal distribution, Two-piece skew-normal distribution, Generalized two-piece skew-normal distribution, Generalized skew two-piece skew-normal distribution, Unimodality and bimodality, Orthant probability,
A. Jamalizadeh +2 more
core +1 more source
A new family of skewed slash distributions generated by the normal kernel
Statistica, 2013 The present paper is a generalization of the recent paper by Nadaraja and Kotz (2003) (Skewed distributions generated by the normal kernel, “Statistics & Probability Letters’’, 65, pp. 269-277). The new family of univariate skewed slash distributions
Bindu Punathumparambath
doaj +1 more source
Heteroscedastic partially linear model under skew-normal distribution with application in ragweed pollen concentration. [PDF]
J Appl Stat, 2023 Ferreira CS +2 more
europepmc +1 more source
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
A Multivariate Birnbaum-Saunders Distribution Based on the Multivariate Skew Normal Distribution
, 2015 Birnbaum-Saunders distribution has received some attention in the statistical literature since its inception. Univariate Birnbaum-Saunders distribution has been used quite effectively in analyzing positively skewed data.
A. Jamalizadeh, D. Kundu
semanticscholar +1 more source
Advanced Robotics Research, EarlyView.This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi +2 more
wiley +1 more source
Marginal Distributions of Random Vectors Generated by Affine Transformations of Independent Two-Piece Normal Variables [PDF]
Marginal probability density and cumulative distribution functions are presented for multidimensional variables defined by non-singular affine transformations of vectors of independent two-piece normal variables, the most important subclass of Ferreira ...
Maximiano Pinheiro
core
Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion
Advanced Robotics Research, EarlyView.A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza +3 more
wiley +1 more source
BAYESIAN INFERENCE FOR THE HALF-NORMAL AND HALF-T DISTRIBUTIONS [PDF]
In this article we consider approaches to Bayesian inference for the half-normal and half-t distributions. We show that a generalized version of the normal-gamma distribution is conjugate to the half-normal likelihood and give the moments of this new ...
F.J. Giron, A. Pewsey, Michael P. Wiper
core