Results 1 to 10 of about 2,955,171 (326)

A Mixture Model of Truncated Zeta Distributions with Applications to Scientific Collaboration Networks

open access: yesEntropy, 2021
The degree distribution has attracted considerable attention from network scientists in the last few decades to have knowledge of the topological structure of networks. It is widely acknowledged that many real networks have power-law degree distributions.
Hohyun Jung, Frederick Kin Hing Phoa
doaj   +1 more source

Clustering Longitudinal Data Using R: A Monte Carlo Study

open access: yesMethodology, 2022
The analysis of change within subjects over time is an ever more important research topic. Besides modelling the individual trajectories, a related aim is to identify clusters of subjects within these trajectories.
Peter Verboon, Ron Pat-El
doaj   +1 more source

Modeling Recovery Rates of Small- and Medium-Sized Entities in the US

open access: yesMathematics, 2020
A sound statistical model for recovery rates is required for various applications in quantitative risk management, with the computation of capital requirements for loan portfolios as one important example.
Aleksey Min   +3 more
doaj   +1 more source

CFD Comparison of multiphase models in the pool boiling state

open access: yesCurved and Layered Structures, 2022
With the development of simulation technology and programs, it became necessary to study the models that control equations’ solutions and influence the results.
Enjadat Suleiman MJ.
doaj   +1 more source

Numerical Prediction of Two-Phase Flow through a Tube Bundle Based on Reduced-Order Model and a Void Fraction Correlation

open access: yesEntropy, 2021
Predicting the void fraction of a two-phase flow outside of tubes is essential to evaluate the thermohydraulic behaviour in steam generators. Indeed, it determines two-phase mixture properties and affects two-phase mixture velocity, which enable ...
Claire Dubot   +5 more
doaj   +1 more source

Combination Effect of Baffle Arrangement and Hybrid Nanofluid on Thermal Performance of a Shell and Tube Heat Exchanger Using 3-D Homogeneous Mixture Model

open access: yesMathematics, 2021
In this study, thermal performance and flow characteristics of a shell and tube heat exchanger equipped with various baffle angles were studied. The heat exchanger was operated with distilled water, and a hybrid nanofluid at three concentrations of 0.04%
Mashhour A. Alazwari   +1 more
doaj   +1 more source

A Variational Autoencoder Mixture Model for Online Behavior Recommendation

open access: yesIEEE Access, 2020
Online behavior recommendation is an attractive research topic related to social media mining. This topic focuses on suggesting suitable behaviors for users in online platforms, including music listening, video watching, e-commerce, to name but a few to ...
Minh-Duc Nguyen, Yoon-Sik Cho
doaj   +1 more source

Gaussian mixture model for time series-based structural damage detection

open access: yesComputer Assisted Methods in Engineering and Science, 2017
In this paper, a time series-based damage detection algorithm is proposed using Gaussian mixture model (GMM) and expectation maximization (EM) framework. The vibration time series from the structure are modelled as the autoregressive (AR) processes. The
Marek Słoński
doaj   +1 more source

Research on flow characteristics of aerostatic circular thrust bearing

open access: yesThe Journal of Engineering, 2018
In order to improve the pressure distribution, the aerostatic circular thrust bearing with single supply hole was studied. In the computational fluid dynamics (CFD) simulation, the laminar model, the turbulent model, the mixture model of laminar and ...
Hechun Yu   +4 more
doaj   +1 more source

Long Time Sequential Task Learning From Unstructured Demonstrations

open access: yesIEEE Access, 2019
Learning from demonstration (LfD), which provides a natural way to transfer skills to robots, has been extensively researched for decades, and an army of methods and applications have been developed and investigated for learning an individual or low ...
Huiwen Zhang, Yuwang Liu, Weijia Zhou
doaj   +1 more source

Home - About - Disclaimer - Privacy