Results 101 to 110 of about 25,561,218 (304)

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Modelling correlated zero-inflated count data

, 2001
Summary: This paper extends the two-component approach to modelling count data with extra zeros, considered by Mullahy (1986), Heilbron (1994) and Welsh et al. (1996), to take account of possible serial dependence between repeated observations. Generalized estimating equations (Liang \& Zeger, 1986) are constructed for each component of the model by ...
Dobbie, Melissa J., Welsh, A.H.
openaire   +1 more source

Edible Pouch Motors

Advanced Robotics Research, EarlyView.
Edible robotics is an emerging field that leverages edible materials to construct robotic systems. This study presents a method to create thin, lightweight, yet powerful edible soft actuators, namely edible pouch motors. The successful operation of these edible actuators and grippers renders their potential to advance future developments in edible ...
Keigo Takahashi, Kazuma Takai, Ryuma Niiyama, Jun Shintake   +3 more
wiley   +1 more source

Generalized Linear Models with Covariate Measurement Error and Zero-Inflated Surrogates

Mathematics
Epidemiological studies often encounter a challenge due to exposure measurement error when estimating an exposure–disease association. A surrogate variable may be available for the true unobserved exposure variable.
Ching-Yun Wang, Jean de Dieu Tapsoba, Catherine Duggan, Anne McTiernan   +3 more
doaj   +1 more source

A class of models for large zero-inflated spatial data

Journal of Agricultural, Biological and Environmental Statistics
Abstract Spatially correlated data with an excess of zeros, usually referred to as zero-inflated spatial data, arise in many disciplines. Examples include count data, for instance, abundance (or lack thereof) of animal species and disease counts, as well as semi-continuous data like observed precipitation.
Ben Seiyon Lee, Murali Haran
openaire   +2 more sources

Modeling zero-inflated count data with glmmTMB [PDF]

, 2017
Abstract Ecological phenomena are often measured in the form of count data. These data can be analyzed using generalized linear mixed models (GLMMs) when observations are correlated in ways that require random effects.
Brooks, Mollie E., Kristensen, Kasper, van Benthem, Koen J., Magnusson, Arni, Berg, Casper W., Nielsen, Anders, Skaug, Hans J., Mächler, Martin, Bolker, Benjamin M.   +8 more
openaire   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source

Bayesian Neural Networks with Regularization for Sparse Zero-Inflated Data Modeling

Information
Zero inflation is pervasive across text mining, event log, and sensor analytics, and it often degrades the predictive performance of analytical models. Classical approaches, most notably the zero-inflated Poisson (ZIP) and zero-inflated negative binomial
Sunghae Jun
doaj   +1 more source

Modeling and Handling Overdispersion Health Science Data with Zero-Inflated Poisson Model [PDF]

, 2013
Health sciences research often involves analyses of repeated measurement or longitudinal count data analyses that exhibit excess zeros. Overdispersion occurs when count data measurements have greater variability than allowed.
Wan Muhamad Amir bin W Ahmad, Nur Syabiha binti Zafakali, Ahmad, Wan Muhamad Amir bin W, Zafakali, Nur Syabiha binti   +3 more
core   +1 more source

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, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source