Results 31 to 40 of about 64,158 (253)

Scale Mixture of Gaussian Modelling of Polarimetric SAR Data

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
This paper describes a flexible non-Gaussian statistical method used to model polarimetric synthetic aperture radar (POLSAR) data. We outline the theoretical basis of the well-know product model as described by the class of Scale Mixture models and ...
Anthony P. Doulgeris   +1 more
doaj   +1 more source

Gaussian Mixture Solvers for Diffusion Models

open access: yesAdvances in Neural Information Processing Systems 36, 2023
Recently, diffusion models have achieved great success in generative tasks. Sampling from diffusion models is equivalent to solving the reverse diffusion stochastic differential equations (SDEs) or the corresponding probability flow ordinary differential equations (ODEs).
Hanzhong Guo   +6 more
openaire   +3 more sources

Estimating the Joint Probability of Scenario Parameters With Gaussian Mixture Copula Models

open access: yesIEEE Open Journal of Intelligent Transportation Systems
This paper presents the first application of Gaussian Mixture Copula Models to the statistical modeling of driving scenarios for the safety validation of automated driving systems. Knowledge of the joint probability distribution of scenario parameters is
Christian Reichenbacher   +3 more
doaj   +1 more source

Antenna Classification Using Gaussian Mixture Models (GMM) and Machine Learning

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
Radio frequency fingerprinting (RFF) is the concept arising from classification of wireless emitters due to their unique radio frequency features. RFF has been further extended to applications including both RF devices classification and wireless signal ...
Yihan Ma, Yang Hao
doaj   +1 more source

Scale-Based Gaussian Coverings: Combining Intra and Inter Mixture Models in Image Segmentation

open access: yesEntropy, 2009
By a “covering” we mean a Gaussian mixture model fit to observed data. Approximations of the Bayes factor can be availed of to judge model fit to the data within a given Gaussian mixture model.
Jean-Luc Starck   +2 more
doaj   +1 more source

Diffusion model conditioning on Gaussian mixture model and negative Gaussian mixture gradient

open access: yesNeurocomputing
Diffusion models (DMs) are a type of generative model that has a huge impact on image synthesis and beyond. They achieve state-of-the-art generation results in various generative tasks. A great diversity of conditioning inputs, such as text or bounding boxes, are accessible to control the generation.
Weiguo Lu   +5 more
openaire   +2 more sources

Analysis of Different Statistical Models in Probabilistic Joint Estimation of Porosity and Litho-Fluid Facies from Acoustic Impedance Values

open access: yesGeosciences, 2018
We discuss the influence of different statistical models in the prediction of porosity and litho-fluid facies from logged and inverted acoustic impedance (Ip) values.
Mattia Aleardi
doaj   +1 more source

Interpreting the effects of DNA polymerase variants at the structural level

open access: yesMolecular Oncology, EarlyView.
Using MAVISp and molecular dynamics simulations, we analyzed over 60 000 missense variants in POLE and POLD1 from ClinVar, COSMIC, cBioPortal, and saturation mutagenesis. Identified mechanistic indicators, including stability, binding, and long‐range, enable structural interpretation, providing ACMG‐like evidence for possible reclassification of VUS ...
Matteo Arnaudi   +7 more
wiley   +1 more source

A Grasp-Pose Generation Method Based on Gaussian Mixture Models

open access: yesInternational Journal of Advanced Robotic Systems, 2015
A Gaussian Mixture Model (GMM)-based grasp-pose generation method is proposed in this paper. Through offline training, the GMM is set up and used to depict the distribution of the robot's reachable orientations.
Wenjia Wu
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

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