Results 41 to 50 of about 6,495 (249)

Log-concavity, ultra-log-concavity, and a maximum entropy property of discrete compound Poisson measures

open access: yes, 2011
Sufficient conditions are developed, under which the compound Poisson distribution has maximal entropy within a natural class of probability measures on the nonnegative integers. Recently, one of the authors [O. Johnson, {\em Stoch. Proc.
Adelson   +57 more
core   +1 more source

Log-concave measures

open access: yes, 2010
We study the log-concave measures, their characterization via the Pr kopa-Leindler property and also define a subset of it whose elements are called super log-concave measures which have the property of satisfying a logarithmic Sobolev inequality. We give some results about their stability.
Feyel, Denis, Ustunel, A. Suleyman
openaire   +2 more sources

Effects of Camu-Camu (Myrciaria dubia) Powder on the Physicochemical and Kinetic Parameters of Deteriorating Microorganisms and Salmonella enterica Subsp. enterica Serovar Typhimurium in Refrigerated Vacuum-Packed Ground Beef

open access: yesAgriculture, 2021
This study aims to evaluate the effects of camu-camu powder (CCP), Amazonian berry fruit with documented bioactive properties, physicochemical meat parameters, and the growth kinetics parameters of S. enterica ser.
Jorge Luiz da Silva   +4 more
doaj   +1 more source

Relative log-concavity and a pair of triangle inequalities

open access: yes, 2010
The relative log-concavity ordering $\leq_{\mathrm{lc}}$ between probability mass functions (pmf's) on non-negative integers is studied. Given three pmf's $f,g,h$ that satisfy $f\leq_{\mathrm{lc}}g\leq_{\mathrm{lc}}h$, we present a pair of (reverse ...
Yu, Yaming
core   +1 more source

On log concave sequences

open access: yesDiscrete Mathematics, 1991
A sequence \(a_ 0,\dots,a_ n\) is said to be log concave if \(a_{i- 1}a_{i+1}\leq a^ 2_ i\) for \(i=1,\dots,n-1\). In this note a log concave sequence is assumed to consist of positive real numbers. The main result of the authors shows how a log concave sequence generates a log supermodular function on the lattice \(\{(i,j)\mid\;0\leq i,j\leq n ...
Beck, István, Krogdahl, Stein
openaire   +1 more source

Geometry of Log-Concave Density Estimation [PDF]

open access: yesDiscrete & Computational Geometry, 2018
22 pages, 3 ...
Elina Robeva   +2 more
openaire   +5 more sources

Shaping of Biohybrid Functional Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck   +3 more
wiley   +1 more source

Further result on Dirichlet-Sch type inequality and its application

open access: yesJournal of Inequalities and Applications, 2017
In this paper we deal with a theoretical question raised in connection with the application of Dirichlet-Sch type inequality, obtained by Huang (Int. Math. J.
Liquan Wan
doaj   +1 more source

Interlacing Log-concavity of the Boros-Moll Polynomials [PDF]

open access: yes, 2010
We introduce the notion of interlacing log-concavity of a polynomial sequence $\{P_m(x)\}_{m\geq 0}$, where $P_m(x)$ is a polynomial of degree m with positive coefficients $a_{i}(m)$.
Chen, William Y. C.   +2 more
core  

The sign of the logistic regression coefficient

open access: yes, 2014
Let Y be a binary random variable and X a scalar. Let $\hat\beta$ be the maximum likelihood estimate of the slope in a logistic regression of Y on X with intercept.
Owen, Art B., Roediger, Paul A.
core   +1 more source

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