Results 1 to 10 of about 13,637,998 (213)

Improving logistic regression on the imbalanced data by a novel penalized log-likelihood function. [PDF]

open access: yesJ Appl Stat, 2022
Logistic regression is estimated by maximizing the log-likelihood objective function formulated under the assumption of maximizing the overall accuracy. That does not apply to the imbalanced data.
Zhang L, Geisler T, Ray H, Xie Y.
europepmc   +2 more sources

Bayesian speckle tracking. Part I: an implementable perturbation to the likelihood function for ultrasound displacement estimation. [PDF]

open access: yesIEEE Trans Ultrason Ferroelectr Freq Control, 2013
Accurate and precise displacement estimation has been a hallmark of clinical ultrasound. Displacement estimation accuracy has largely been considered to be limited by the Cramer-Rao lower bound (CRLB).
Byram B, Trahey GE, Palmeri M.
europepmc   +2 more sources

Let Master of Public Health Students Experience Statistical Reasoning [PDF]

open access: yesAthens Journal of Health and Medical Sciences, 2020
Biostatistics is an integral part of any public health studentʼs curriculum. Most master-level public health students, lacking undergraduate training in calculus-centered mathematics, are often regarded as unprepared for conceptual knowledge, and hence ...
Qi Zheng
doaj   +1 more source

Association of Sex With Neurobehavioral Markers of Executive Function in 2-Year-Olds at High and Low Likelihood of Autism

open access: yesJAMA Network Open, 2023
Key Points Question Are executive function (EF) differences early in development associated with sex, familial likelihood for autism, and alterations in brain volume?
T. St John   +18 more
semanticscholar   +1 more source

A case study on the practicability of using linear analysis results in a Bayesian inference model to predict nonlinear responses in performance-based design methods [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
Compared to traditional methods based on mean response evaluation of seismic parameters with significant confidence margin, the growing use of the new generation of performance-based design methods, which are based on loss and financial assessment ...
Shima Taheri, Reza Karami Mohammadi
doaj   +1 more source

Pitfalls and a feasible solution for using KGE as an informal likelihood function in MCMC methods: DREAM(ZS) as an example

open access: yesHydrology and Earth System Sciences, 2021
. The Kling-Gupta Efficiency (KGE) is a widely used performance measure because of its advantages in orthogonally considering bias, correlation and variability.
Y. Liu   +3 more
semanticscholar   +1 more source

Noise stability of signal reception algorithms with multipulse pulse-position modulation [PDF]

open access: yesКомпьютерная оптика, 2018
An algorithm for estimating time positions and amplitudes of a periodic pulse sequence from a small number of samples was proposed. The number of these samples was determined only by the number of pulses.
Vladimir Parfenov, Dmitry Golovanov
doaj   +1 more source

The Gamma-Topp-Leone-Type II-Exponentiated Half Logistic-G Family of Distributions with Applications

open access: yesStats, 2023
The new Ristić and Balakhrisnan or Gamma-Topp-Leone-Type II-Exponentiated Half Logistic-G (RB-TL-TII-EHL-G) family of distributions is introduced and investigated in this paper.
Broderick Oluyede, Thatayaone Moakofi
doaj   +1 more source

Estimation of models parameters for time series with Markov switching regimes [PDF]

open access: yesКомпьютерные исследования и моделирование, 2018
The paper considers the problem of estimating the parameters of time series described by regression models with Markov switching of two regimes at random instants of time with independent Gaussian noise.
Vera Andreevna Silaeva   +2 more
doaj   +1 more source

Comparison Between the Exact Likelihood and Whittle Likelihood for Moving Average Processes

open access: yesStatistica, 2022
For Gaussian stationary processes, the likelihood functions include the inverse and determinant of the covariance matrices, and Whittle likelihood is considered as a standard technique to avoid expensive matrix determinant and inversions under large ...
Xiaofei Xu   +2 more
doaj   +1 more source

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