Results 61 to 70 of about 9,497,746 (229)

The EM Algorithm [PDF]

open access: yes
The Expectation-Maximization (EM) algorithm is a broadly applicable approach to the iterative computation of maximum likelihood (ML) estimates, useful in a variety of incomplete-data problems.
Krishnan, Thriyambakam   +2 more
core  

Single-index logistic model for high-dimensional group testing data

open access: yesAIMS Mathematics
Group testing is an efficient screening method that reduces the number of tests by pooling multiple samples, making it especially effective in low-prevalence settings. This strategy gained significant attention during the COVID-19 pandemic, and has since
Changfu Yang   +4 more
doaj   +1 more source

Gaussian Mixture Model Based Classification of Stuttering Dysfluencies

open access: yesJournal of Intelligent Systems, 2016
The classification of dysfluencies is one of the important steps in objective measurement of stuttering disorder. In this work, the focus is on investigating the applicability of automatic speaker recognition (ASR) method for stuttering dysfluency ...
Mahesha P., Vinod D.S.
doaj   +1 more source

Implementation of a fixing strategy and parallelization in a recent global optimization method [PDF]

open access: yes, 2008
Electromagnetism-like Mechanism (EM) heuristic is a population-based stochastic global optimization method inspired by the attraction-repulsion mechanism of the electromagnetism theory.
Birbil, S. Ilker   +3 more
core  

On Convergence Properties of the EM Algorithm for Gaussian Mixtures

open access: yesNeural Computation, 1996
We build up the mathematical connection between the Expectation-Maximization (EM) algorithm and gradient-based approaches for maximum likelihood learning of finite gaussian mixtures.
L. Xu, Michael I. Jordan
semanticscholar   +1 more source

Spectrum adapted expectation-maximization algorithm for high-throughput peak shift analysis

open access: yesScience and Technology of Advanced Materials, 2019
We introduce a spectrum-adapted expectation-maximization (EM) algorithm for high-throughput analysis of a large number of spectral datasets by considering the weight of the intensity corresponding to the measurement energy steps.
Tarojiro Matsumura   +4 more
doaj   +1 more source

An Integrated Approach for Making Inference on the Number of Clusters in a Mixture Model

open access: yesEntropy, 2019
This paper presents an integrated approach for the estimation of the parameters of a mixture model in the context of data clustering. The method is designed to estimate the unknown number of clusters from observed data.
Erlandson Ferreira Saraiva   +3 more
doaj   +1 more source

Achieving the oracle property of OEM with nonconvex penalties

open access: yesStatistical Theory and Related Fields, 2017
Thepenalised least square estimator of non-convex penalties such as the smoothly clipped absolute deviation (SCAD) and the minimax concave penalty (MCP) is highly nonlinear and has many local optima.
Shifeng Xiong, Bin Dai, Peter Z. G. Qian
doaj   +1 more source

Estimation of the Parameters of the Lomax Distribution using the EM Algorithm and Lindley Approximation

open access: yesپژوهش‌های ریاضی, 2018
Estimation of statistical distribution parameter is one of the important subject of statistical inference. Due to the applications of Lomax distribution in business, economy, statistical science, queue theory, internet traffic modeling and so on, in this
Roshanak Zaman, Parviz Nasiri
doaj  

Maximum Likelihood Estimation for an SAG Mill Model Utilizing Physical Available Measurements

open access: yesIEEE Access
In this paper, we have proposed a new paradigm for modeling of SAG mills. Typically, important parameters found in the modeling of such processes are described as state-space system model rather than unknown parameters.
Angel L. Cedeno   +6 more
doaj   +1 more source

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