Results 41 to 50 of about 662,489 (267)

Extreme values in closed networks

Queueing Systems
For a widely used hub-and-spoke closed product-form network consisting of an infinite-server node and several single-server queues, we characterize the maximum queue-length distribution in various operational regimes by leveraging a novel probabilistic representation of the joint queue-length distribution and scaling where the number of customers grows.
Predrag R. Jelenkovic, Petar Momcilovic
openaire   +3 more sources

On Weierstrass extreme value theorem [PDF]

Optimization Letters, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On Optimization and Extreme Value Theory [PDF]

Methodology And Computing In Applied Probability, 2003
A stochastic optimiser is an algorithm ruled by probabilistic procedures which aims at finding the optimum point of an objective function. The authors study the fit of the optimization outcomes to an extreme value distribution and suggest that the parameters of that distribution characterize the performance of the optimiser.
Hüsler, Jürg, Cruz, João Pedro Antunes Ferreira da, Hall, Andreia, Fonseca, Carlos   +3 more
openaire   +3 more sources

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

Probabilistic structure of an annual extreme rainfall series of a coastal area of the State of São Paulo, Brazil Estrutura probabilística de uma série anual de precipitação pluvial extrema de uma região do litoral do estado de São Paulo

Engenharia Agrícola, 2012
This study aimed to describe the probabilistic structure of the annual series of extreme daily rainfall (Preabs), available from the weather station of Ubatuba, State of São Paulo, Brazil (1935-2009), by using the general distribution of extreme value ...
Gabriel C. Blain, Marcelo B. P. de Camargo   +1 more
doaj   +1 more source

Extreme Values of Permutation Statistics

The Electronic Journal of Combinatorics
We investigate extreme values of Mahonian and Eulerian distributions arising from counting inversions and descents of random elements of finite Coxeter groups. To this end, we construct a triangular array of either distribution from a sequence of Coxeter groups with increasing ranks. To avoid degeneracy of extreme values, the number of i.i.d.
Philip Dörr, Thomas Kahle
openaire   +4 more sources

Condensation and extreme value statistics [PDF]

Journal of Statistical Mechanics: Theory and Experiment, 2008
We study the factorised steady state of a general class of mass transport models in which mass, a conserved quantity, is transferred stochastically between sites. Condensation in such models is exhibited when above a critical mass density the marginal distribution for the mass at a single site develops a bump, $p_{\rm cond}(m)$, at large mass $m$. This
Evans, Martin R., Majumdar, Satya N.
openaire   +2 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Which extreme values are really extreme? [PDF]

, 2004
We define the extreme values of any random sample of size n from a distribution function F as the observations exceeding a threshold and following a type of generalized Pareto distribution (GPD) involving the tail index of F. The threshold is the order statistic that minimizes a Kolmogorov-Smirnov statistic between the empirical distribution of the ...
Gonzalo, J., Olmo, J.
openaire   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source