Results 121 to 130 of about 25,561,218 (304)
Data Transformation and Scaling Methods for Zero-Inflated Sparse Data Analysis
InformationZero-inflated sparse count data are common in text analytics, where keyword frequencies contain many zeros and highly skewed positive values. This study proposes a systematic model-specific framework that treats predictor transformation and scaling as ...
Sunghae Jun
doaj +1 more source
Advanced Robotics Research, EarlyView.A sea turtle‐inspired amphibious robot uses simulation‐guided optimization to adapt its flipper coordination to different environments. Sensitivity analysis and multiobjective Bayesian optimization identify terrain‐dependent controllers that are validated on hardware.
Nnamdi C. Chikere, Yasemin Ozkan‐Aydin
wiley +1 more source
Distributed Micropneumatic Sensors for Soft Robots to Detect Touch and Pose
Advanced Robotics Research, EarlyView.Soft robots need integrated touch and pose sensing for safe and reliable operation. This work presents a three‐fingered soft gripper with 18 micropneumatic sensors made from the same materials as its pneumatic actuators. By measuring airflow resistance changes in deforming microchannels of the sensors, finger pose and contact are detected, enabling ...
Vilma Lampinen +3 more
wiley +1 more source
PLoS ONEBackgroundSchistosomiasis is a neglected disease prevalent in tropical and sub-tropical areas of the world, especially in Africa. Detecting the presence of the disease is based on the detection of the parasites in the stool or urine of children and ...
Kojo Nketia, Dziedzom K de Souza
doaj +1 more source
Zero-inflated beta regressions, education and Health versus transportation, energy, and mining.
, 2019 Zero-inflated beta regressions, education and Health versus transportation, energy, and mining.
Mario Negre (6866462) +4 more
core +1 more source
Consensus Formation and Change are Enhanced by Neutrality
Advanced Science, EarlyView.Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag +3 more
wiley +1 more source
Finding the Right Distribution for Highly Skewed Zero-inflated Clinical Data
Epidemiology, Biostatistics and Public Health, 2022 Discrete, highly skewed distributions with excess numbers of zeros often result in biased estimates and misleading inferences if the zeros are not properly addressed.
Resmi Gupta +3 more
doaj
ESTIMATION ISSUES IN SINGLE COMMODITY GRAVITY TRADE MODELS [PDF]
Recently gravity trade models are applied to disaggregated trade data. Here many zeros are characteristic. In the presence of excess zeros usual Poisson Pseudo Maximum Likelihood (PPML) is still consistent, the variance covariance matrix however is ...
Prehn, Soren, Brummer, Bernhard
core
Zero-inflated beta regressions, public expenditure and the aid of other donors.
, 2019 Zero-inflated beta regressions, public expenditure and the aid of other donors.
Mario Negre (6866462) +4 more
core +1 more source
Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics
Advanced Science, EarlyView.The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet +8 more
wiley +1 more source