Results 21 to 30 of about 22,175,501 (301)

Research on the Graphical Model Structure Characteristic of Strong Exogeneity Based on Twin Network Method and Its Application in Causal Inference

open access: yesMathematics, 2022
Strong exogeneity is an important assumption in the study of causal inference, but it is difficult to identify according to its definition. The twin network method provides a graphical model tool for analyzing the variable relationship, involving the ...
Rui Luo   +4 more
doaj   +1 more source

Graphic Models of Nicknames in the German-Speaking Internet-Space

open access: yesVestnik Volgogradskogo Gosudarstvennogo Universiteta. Seriâ 2. Âzykoznanie, 2015
The object of the study is a specific anthroponymic element of the onomastic system in German – the network name (nickname) and its representation in the German section of the Internet.
Viktoriya Viktorovna Kazyaba
doaj   +1 more source

Projective Latent Dependency Forest Models

open access: yesIEEE Access, 2019
Latent dependence forest models (LDFM) are a new type of probabilistic models with the advantage of not requiring the difficult procedure of structure learning in model learning.
Yong Jiang, Yang Zhou, Kewei Tu
doaj   +1 more source

Microbial Networks in SPRING - Semi-parametric Rank-Based Correlation and Partial Correlation Estimation for Quantitative Microbiome Data

open access: yesFrontiers in Genetics, 2019
High-throughput microbial sequencing techniques, such as targeted amplicon-based and metagenomic profiling, provide low-cost genomic survey data of microbial communities in their natural environment, ranging from marine ecosystems to host-associated ...
Grace Yoon   +2 more
doaj   +1 more source

Graphical Local Genetic Algorithm for High-Dimensional Log-Linear Models

open access: yesMathematics, 2023
Graphical log-linear models are effective for representing complex structures that emerge from high-dimensional data. It is challenging to fit an appropriate model in the high-dimensional setting and many existing methods rely on a convenient class of ...
Lyndsay Roach, Xin Gao
doaj   +1 more source

A Nonparametric Graphical Model for Functional Data With Application to Brain Networks Based on fMRI

open access: yesJournal of the American Statistical Association, 2018
We introduce a nonparametric graphical model whose observations on vertices are functions. Many modern applications, such as electroencephalogram and functional magnetic resonance imaging (fMRI), produce data are of this type.
Bing Li, Eftychia Solea
semanticscholar   +1 more source

Investigating effective wayfinding in airports: a Bayesian network approach

open access: yesTransport, 2014
Effective wayfinding is the successful interplay of human and environmental factors resulting in a person successfully moving from their current position to a desired location in a timely manner. To date this process has not been modelled to reflect this
Anna Charisse Farr   +4 more
doaj   +1 more source

Sparse Cholesky Covariance Parametrization for Recovering Latent Structure in Ordered Data

open access: yesIEEE Access, 2020
The sparse Cholesky parametrization of the inverse covariance matrix is directly related to Gaussian Bayesian networks. Its counterpart, the covariance Cholesky factorization model, has a natural interpretation as a hidden variable model for ordered ...
Irene Cordoba   +3 more
doaj   +1 more source

A Vehicle Crash Simulator Using Digital Twin Technology for Synthesizing Simulation and Graphical Models

open access: yesVehicles, 2023
Computer vehicle simulators are used to model real-world situations to overcome time and cost limitations. The vehicle simulators provide virtual scenarios for real-world driving.
Su Man Nam   +4 more
doaj   +1 more source

DragDL:An Easy-to-Use Graphical DL Model Construction System [PDF]

open access: yesJisuanji kexue, 2021
Deep learning has broad applications in various fields.However,users still need to face problems from two aspects when applying deep learning.First,deep learning has a complex theoretical background,non-professional users lack background knowledge in ...
TANG Shi-zheng, ZHANG Yan-feng
doaj   +1 more source

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