Results 11 to 20 of about 475,497 (278)
Average Hazard as Harmonic Mean. [PDF]
ABSTRACTA new measure was recently developed in the context of survival analysis that can be interpreted as a weighted arithmetic mean of the hazards with the survival function as the weight. However, when the average hazard is desired, it is more appropriate to use the harmonic mean rather than the arithmetic mean.
Chiba Y.
europepmc +3 more sources
Harmonic analysis and mean field theory [PDF]
We review some aspects of harmonic analysis for the Euclidean conformal group, including conformally-invariant pairings, the Plancherel measure, and the shadow transform.
Denis Karateev +2 more
doaj +5 more sources
C-Reactive Protein Trajectories by Summary Metric Across the Coronavirus-2019 Period: A 16-Year Interrupted Time-Series Analysis (2008–2023) [PDF]
Background/Objectives: The clinical utility of summarizing long-term C-reactive protein (CRP) trends with a single mean remains unclear. We systematically characterized annual changes in CRP test volume and CRP level distributions using large-scale ...
Jeong Su Han +3 more
doaj +2 more sources
Approximation of the expected value of the harmonic mean and some applications [PDF]
Yuehua Wu
exaly +2 more sources
The arithmetic-harmonic mean [PDF]
Consider two sequences generated by \[ a n + 1 = M ( a n , b n ) , b
Foster, D. M. E., Phillips, G. M.
openaire +1 more source
Stochastic Order and Generalized Weighted Mean Invariance
In this paper, we present order invariance theoretical results for weighted quasi-arithmetic means of a monotonic series of numbers. The quasi-arithmetic mean, or Kolmogorov–Nagumo mean, generalizes the classical mean and appears in many disciplines ...
Mateu Sbert +3 more
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Two Sharp Inequalities for Power Mean, Geometric Mean, and Harmonic Mean
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
Digital image contrast assessment based on the Weibull distribution parameters
The goal of the studies described in the paper is to find a quantitative assessment that maximally correlates with the subjective assessment of the contrast image quality in the absence of reference image.
Y. I. Golub, F. V. Starovoitov
doaj +1 more source
On approximating the quasi-arithmetic mean
In this article, we prove that the double inequalities α1[7C(a,b)16+9H(a,b)16]+(1−α1)[3A(a,b)4+G(a,b)4]
Tie-Hong Zhao +3 more
doaj +1 more source
Experimental Demonstration of Squeezed State Quantum Averaging [PDF]
We propose and experimentally demonstrate a universal quantum averaging process implementing the harmonic mean of quadrature variances. The harmonic mean protocol can be used to efficiently stabilize a set of fragile squeezed light sources with ...
A. Berthiaume +11 more
core +5 more sources

