Results 41 to 50 of about 1,354 (166)

Point Divergence Gain and Multidimensional Data Sequences Analysis

open access: yesEntropy, 2018
We introduce novel information-entropic variables—a Point Divergence Gain ( Ω α ( l → m ) ), a Point Divergence Gain Entropy ( I α ), and a Point Divergence Gain Entropy Density ( P α )—which are derived from the Rényi entropy and ...
Renata Rychtáriková   +3 more
doaj   +1 more source

Fractional Moment Theory for Anomalous Transport: A Unified Framework for Lévy Flights, Fractals, and Complex Dynamical Systems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley   +1 more source

Interdiction Models and Heuristics for Graph Propagation

open access: yesNetworks, EarlyView.
ABSTRACT Given a graph G=(V,E)$$ G=\left(V,E\right) $$ and a set S⊂V$$ S\subset V $$ of activated/infected nodes, we consider the problem of determining the set of c$$ c $$ nodes that minimizes the network propagation on the subgraph that results from the removal of those c$$ c $$ nodes. To measure network propagation, we assume that a node i$$ i $$ is
Agostinho Agra, José Maria Samuco
wiley   +1 more source

On Metric Choice in Dimension Reduction for Fréchet Regression

open access: yesInternational Statistical Review, EarlyView.
Summary Fréchet regression is becoming a mainstay in modern data analysis for analysing non‐traditional data types belonging to general metric spaces. This novel regression method is especially useful in the analysis of complex health data such as continuous monitoring and imaging data.
Abdul‐Nasah Soale   +3 more
wiley   +1 more source

Relating different quantum generalizations of the conditional Rényi entropy [PDF]

open access: yes, 2014
© 2014 AIP Publishing LLC. Recently a new quantum generalization of the Rényi divergence and the corresponding conditional Rényi entropies was proposed.
Hayashi, M, Berta, M, Tomamichel, M
core   +2 more sources

Hardness of (Semiuniform) MLWE with Short Distributions Using the Rényi Divergence

open access: yesIET Information Security, 2023
The module learning with errors (MLWE) problem has attracted considerable attention for its tradeoff between security and efficiency. The quantum/classical worst-case to average-case hardness for the MLWE problem (or more exactly, a family of problems ...
Wenjuan Jia, Baocang Wang
doaj   +1 more source

Adaptation and Psychometric Evaluation of a Patient Safety Culture Instrument for Home Care—A Multicentre Cross‐Sectional Study

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aims To adapt an instrument to measure patient safety culture, as rated by home care workers, and examine its psychometric properties. Design A multicentre cross‐sectional psychometric study. Methods We adapted the Nursing Home Survey SOPS to measure safety culture in home care.
Tania Martins   +4 more
wiley   +1 more source

Correlation Analysis of Clinical, Imaging, and Genetic Etiologies in Pediatric Hereditary Cerebellar Atrophy: A Single‐Center Study

open access: yesMolecular Genetics &Genomic Medicine, Volume 14, Issue 7, July 2026.
We identified predictors of early onset and poor prognosis in childhood cerebellar atrophy. Our findings advocate for a shift towards early, targeted diagnostic strategies based on genetic and imaging profiles. ABSTRACT Objective To investigate the associations among clinical features, neuroimaging findings, and genetic data in children with hereditary
Luyao Jin   +4 more
wiley   +1 more source

Thermal fluctuations of black holes with non-linear electrodynamics and charged Renyi entropy

open access: yesJournal of High Energy Physics, 2023
We extend the charged Renyi entropy to a more general holographic scenario. Coupling an arbitrary non-linear electrodynamics Lagrangian density to AdS gravity, we analyse the thermodynamic features of non-linearly charged hyperbolic black holes and the ...
Gabriel Arenas-Henriquez   +2 more
doaj   +1 more source

An active contour model for texture image segmentation using Rényi divergence measure

open access: yesMathematical Modelling and Analysis, 2022
This paper proposes an efficient method for active unsupervised texture segmentation. A new descriptor for texture features extractions based on Gaussian and mean curvature is constructed.
Sidi Yassine Idrissi
doaj   +1 more source

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