Results 1 to 10 of about 22,175,501 (301)

Using a Gaussian Graphical Model to Explore Relationships Between Items and Variables in Environmental Psychology Research

open access: yesFrontiers in Psychology, 2019
Exploratory analyses are an important first step in psychological research, particularly in problem-based research where various variables are often included from multiple theoretical perspectives not studied together in combination before.
Nitin Bhushan   +5 more
doaj   +2 more sources

Spatio-Temporal Graphical-Model-Based Multiple Facial Feature Tracking [PDF]

open access: goldEURASIP Journal on Advances in Signal Processing, 2005
It is challenging to track multiple facial features simultaneously when rich expressions are presented on a face. We propose a two-step solution. In the first step, several independent condensation-style particle filters are utilized to track each ...
Su Congyong, Huang Li
doaj   +2 more sources

Equivalence model: A new graphical model for causal inference [PDF]

open access: yesEpidemiology and Health, 2020
Although several causal models relevant to epidemiology have been proposed, a key question that has remained unanswered is why some people at high-risk for a particular disease do not develop the disease while some people at low-risk do develop it.
Jalal Poorolajal
doaj   +2 more sources

A probabilistic graphical model foundation for enabling predictive digital twins at scale [PDF]

open access: yesNature Computational Science, 2020
A unifying mathematical formulation is needed to move from one-off digital twins built through custom implementations to robust digital twin implementations at scale.
Michael G. Kapteyn   +2 more
semanticscholar   +1 more source

Graphical Notation for Document Database Modeling

open access: yesОткрытое образование (Москва), 2021
Goals and objectives. Graphical models have proven to be a reliable, clear and convenient tool for creating sketch models of databases. Most of the existing notations are designed for the relational data model, the dominant data model for the last thirty
M. V. Smirnov, R. S. Tolmasov
doaj   +1 more source

Modeling Categorical Variables by Mutual Information Decomposition

open access: yesEntropy, 2023
This paper proposed the use of mutual information (MI) decomposition as a novel approach to identifying indispensable variables and their interactions for contingency table analysis.
Jiun-Wei Liou   +2 more
doaj   +1 more source

Conditional Random Field-Guided Multi-Focus Image Fusion

open access: yesJournal of Imaging, 2022
Multi-Focus image fusion is of great importance in order to cope with the limited Depth-of-Field of optical lenses. Since input images contain noise, multi-focus image fusion methods that support denoising are important.
Odysseas Bouzos   +2 more
doaj   +1 more source

The Gaussian Graphical Model in Cross-Sectional and Time-Series Data [PDF]

open access: yesMultivariate Behavioral Research, 2016
We discuss the Gaussian graphical model (GGM; an undirected network of partial correlation coefficients) and detail its utility as an exploratory data analysis tool.
S. Epskamp   +3 more
semanticscholar   +1 more source

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