Results 11 to 20 of about 6,287,224 (283)

Power mean based image segmentation in the presence of noise [PDF]

open access: yesScientific Reports, 2022
In image segmentation and in general in image processing, noise and outliers distort contained information posing in this way a great challenge for accurate image segmentation results.
Afzal Rahman   +7 more
doaj   +2 more sources

An EigenFactor-weighted power mean generalization of the Euclidean Index. [PDF]

open access: yesPLoS ONE, 2019
This paper proposes a weighted generalization of the recently developed Euclidean Index. The weighting mechanism is designed to reflect the reputation of the journal within which an article appears.
M Ryan Haley
doaj   +2 more sources

On the Fourth Power Mean of the Two-Term Exponential Sums [PDF]

open access: yesThe Scientific World Journal, 2014
The main purpose of this paper is to use the analytic methods and the properties of Gauss sums to study the computational problem of one kind fourth power mean of two-term exponential sums and give an interesting identity and asymptotic formula for it.
Han Zhang, Wenpeng Zhang
doaj   +2 more sources

Tracking Performance Limits Using Multi‐Timescale Maximal Mean Power Ratios [PDF]

open access: yesEuropean Journal of Sport Science
This study introduces a multi‐timescale mechanical model to quantify proximity to performance limits during endurance exercise. The model represents power output using a set of rolling averages, each associated with a characteristic time constant, and ...
Andrea Zignoli   +5 more
doaj   +2 more sources

Properties of distance spaces with power triangle inequalities

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
Metric spaces provide a framework for analysis and have several very useful properties. Many of these properties follow in part from the  triangle inequality.
D. Greenhoe
doaj   +1 more source

Sharp Power Mean Bounds for Two Seiffert-like Means

open access: yesAxioms, 2023
The mean is a subject of extensive study among scholars, and the pursuit of optimal power mean bounds is a highly active field. This article begins with a concise overview of recent advancements in this area, focusing specifically on Seiffert-like means.
Zhenhang Yang, Jing Zhang
doaj   +1 more source

Joint Modeling of Received Power, Mean Delay, and Delay Spread for Wideband Radio Channels [PDF]

open access: yes, 2021
We propose a multivariate log-normal distribution to jointly model received power, mean delay, and root mean square (rms) delay spread of wideband radio channels, referred to as the standardized temporal moments. The model is validated using experimental
Adeogun, Ramoni   +6 more
core   +5 more sources

Optimal power mean bounds for the second Yang mean

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we present the best possible parameters p and q such that the double inequality M p ( a , b ) < V ( a , b ) < M q ( a , b ) $$ M_{p}(a,b)< V(a,b)< M_{q}(a,b) $$ holds for all a , b > 0 $a, b>0$ with a ≠ b $a\neq b$ , where M r ( a , b ) = [
Jun-Feng Li, Zhen-Hang Yang, Yu-Ming Chu
doaj   +1 more source

The contributions of matter inside and outside of haloes to the matter power spectrum [PDF]

open access: yes, 2015
Halo-based models have been successful in predicting the clustering of matter. However, the validity of the postulate that the clustering is fully determined by matter inside haloes remains largely untested, and it is not clear a priori whether non ...
Schaye, Joop, van Daalen, Marcel P.
core   +3 more sources

Two Sharp Inequalities for Power Mean, Geometric Mean, and Harmonic Mean

open access: yesJournal of Inequalities and Applications, 2009
For p∈R, the power mean of order p of two positive numbers a and b is defined by Mp(a,b)=((ap+bp)/2)1/p,p≠0,  and  Mp(a,b)=ab,   p=0.
Wei-Feng Xia, Yu-Ming Chu
doaj   +2 more sources

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