Results 21 to 30 of about 384,626 (261)

Chaotic intermittency with non-differentiable M(x) function

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2023
One-dimensional maps showing chaotic intermittency with discontinuous reinjection probability density functions are studied. For these maps, the reinjection mechanism possesses two different processes.
Sergio Elaskar   +2 more
doaj   +1 more source

An Improved Variable Kernel Density Estimator Based on L2 Regularization

open access: yesMathematics, 2021
The nature of the kernel density estimator (KDE) is to find the underlying probability density function (p.d.f) for a given dataset. The key to training the KDE is to determine the optimal bandwidth or Parzen window.
Yi Jin, Yulin He, Defa Huang
doaj   +1 more source

On the Probability Density Functions and the Oscillations

open access: yesBulletin of the Faculty of Science, Ibaraki University. Series A, Mathematics, 1983
Consider the functional differential equation (E) \(y'(t)+a(t)y(t)+p(t)y(\tau (t))=0\) where a,p\(\in C[T,\infty)\) and lim \(\tau\) (t)\(=+\infty\). The author presents two examples of this equation having respectively the Gaussian and Laplace distributions as solutions. He then gives two nonoscillation and oscillation theorems for (E).
openaire   +2 more sources

PENENTUAN THRESHOLD CITRA MULUT DENGAN METODE NORMAL PROBABILITY DENSITY FUNCTION (NPDF) GUNA MENDETEKSI MULUT PEMELAJAR

open access: yesIlkom Jurnal Ilmiah, 2017
Identifikasi wajah merupakan masalah sulit terutama ketika informasi dari fitur wajah tidak cukup atau terbatas. Misalnya dalam segmentasi mulut pemelajar, dimana objek yang diamati tergolong rumit, terutama ciri utama wajah yaitu, mata, mulut, hidung ...
Anas Anas
doaj   +1 more source

The Column Density Probability Density Function of Cygnus-X

open access: yesThe Astronomical Journal
The density distribution within molecular clouds offers critical insights into their underlying physical processes, which are essential for understanding star formation.
Yuchen Xing, Keping Qiu
doaj   +1 more source

Foundation of 2-Symbolic Plithogenic Maximum a Posteriori Estimation [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
In this paper, we introduce and define for the first time the plithogenic loss function, plithogenic risk function, plithogenic maximum likelihood function, and plithogenic posterior risk function, which form a base to easily define the plithogenic ...
Nizar Altounji   +2 more
doaj  

Association Between Dinutuximab Beta Exposure and Post‐End‐of‐Treatment Survival in Neuroblastoma: A Weighted Patient‐Level Analysis of Three Clinical Studies

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives The association between exposure to dinutuximab beta (DB) and event‐free survival (EFS) or overall survival (OS) of neuroblastoma patients was assessed using data collected during three clinical trials (five cohorts). Methods A systematic review (March 2026) was conducted to identify relevant studies (prospective; registered DB ...
Przemysław Holko   +19 more
wiley   +1 more source

The probability density function of spectral correlation function estimates

open access: yesEURASIP Journal on Advances in Signal Processing
Since published in 1988, the FFT Accumulation Method (FAM) has been used extensively to compute the Spectral Correlation Function (SCF) and the Spectral Coherence Function (SCoF) to obtain or detect cyclic features of cyclostationary signals.
Miguel Tavares, José Gerald, João Goes
doaj   +1 more source

On the Smoothing of Probability Density Functions

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1958
Summary We consider the estimation of a probability density function by linear smoothing of the observed density. A basis for estimation is obtained by assuming that the ordinates of the true density function have a prior distribution such that adjacent ordinates are highly correlated.
openaire   +2 more sources

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior   +11 more
wiley   +1 more source

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