Results 1 to 10 of about 1,117,550 (233)

Kernel Geometric Mean Metric Learning

open access: greenApplied Sciences, 2023
Geometric mean metric learning (GMML) algorithm is a novel metric learning approach proposed recently. It has many advantages such as unconstrained convex objective function, closed form solution, faster computational speed, and interpretability over ...
Zixin Feng   +4 more
doaj   +3 more sources

Sharp Bounds by the Generalized Logarithmic Mean for the Geometric Weighted Mean of the Geometric and Harmonic Means [PDF]

open access: yesJournal of Applied Mathematics, 2012
We present sharp upper and lower generalized logarithmic mean bounds for the geometric weighted mean of the geometric and harmonic means.
Wei-Mao Qian, Bo-Yong Long
doaj   +4 more sources

Extensions to Mean–Geometric Mean Linking

open access: yesMathematics
Mean-geometric mean (MGM) linking is a widely used method for linking two groups within the two-parameter logistic (2PL) item response model. However, the presence of differential item functioning (DIF) can lead to biased parameter estimates using the ...
Alexander Robitzsch
doaj   +2 more sources

Optimal two-parameter geometric and arithmetic mean bounds for the Sándor–Yang mean

open access: yesJournal of Inequalities and Applications, 2019
In the article, we provide the sharp bounds for the Sándor–Yang mean in terms of certain families of the two-parameter geometric and arithmetic mean and the one-parameter geometric and harmonic means.
Wei-Mao Qian   +3 more
doaj   +3 more sources

Sharp Geometric Mean Bounds for Neuman Means [PDF]

open access: yesAbstract and Applied Analysis, 2014
We find the best possible constants α1,α2,β1,β2∈[0,1/2] and α3,α4,β3,β4∈[1/2,1] such that the double inequalities G(α1a+(1-α1)b,α1b + (1-α1)a)
Yan Zhang, Yu-Ming Chu, Yun-Liang Jiang
doaj   +4 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

Joint Access Configuration and Beamforming for Cell-Free Massive MIMO Systems With Dynamic TDD

open access: yesIEEE Access, 2022
We address the trade-off between system throughput and user equipment (UE) fairness in dynamic time division duplex (TDD) cell-free (CF)-massive multiple-input multiple-output (mMIMO) systems, developing to that end a joint access point (AP) access ...
Shuto Fukue   +3 more
doaj   +1 more source

Uporaba srednjih mer za pojasnjevanje cen na trgu nepremičnin (= The use of mean values for reporting real estate prices) [PDF]

open access: yesGeodetski Vestnik, 2021
The proper and unambiguous reporting of the real estate market is one of the main requirements for ensuring its transparency. Reporting on the prices of real estate realised on the market is a special challenge here.
Melita Ulbl, Andraž Muhič
doaj   +1 more source

The Multi-Objective Transportation Problem Solve with Geometric Mean and Penalty Methods

open access: yesIndonesian Journal of Innovation and Applied Sciences, 2023
The traditional (classical) Transportation Problem (TP) can be viewed as a specific case of the Linear Programming (LP) problem, as well as its models are used to find the best solution for the problem of predetermined how many units of a good or service
K.P.O.Niluminda, E.M.U.S.B.Ekanayake
doaj   +1 more source

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