Results 11 to 20 of about 97,712 (261)

Evolutionary processes in finite populations [PDF]

open access: yesPhysical Review E, 2013
We consider the evolution of large but finite populations on arbitrary fitness landscapes. We describe the evolutionary process by a Markov, Moran process. We show that to $\mathcal O(1/N)$, the time-averaged fitness is lower for the finite population than it is for the infinite population.
Lorenz, Dirk M.   +2 more
openaire   +4 more sources

Estimation of a Ratio in the Finite Population [PDF]

open access: yesInformatica, 2005
Summary: Estimation of the ratio of two totals is considered, when a probability sample from the finite population is available. Four estimators of the ratio are examined. The first one -- called ``simple'' -- is the ratio of the Horvitz-Thompson estimators of totals; the second -- the ratio of two ratio estimators of totals; the third one -- the ratio
Danute Krapavickaite   +1 more
openaire   +3 more sources

Analysis of Finite Population Stochastic modeling with State-Dependent Arrival and Service Facilities

open access: yesRatio Mathematica, 2022
This paper investigates a stock-dependent arrival process(SDAP) and queue-dependent service process(QDSP) in the stochastic queueing-inventory system(SQIS). The arriving units in the system are generated from the finite source population.
K Lakshmanan   +3 more
doaj   +1 more source

Finding the Size of a Finite Population [PDF]

open access: yesThe Annals of Mathematical Statistics, 1967
There are fixed sample size methods for estimating the unknown size N of a finite population by tagging the elements of a first sample and then counting the number of tagged elements of a second sample [1, p. 43]. Less well known are sequential methods [2], which have the advantage that the total sample size automatically adjusts itself to the unknown ...
Darling, D. A., Robbins, Herbert
openaire   +3 more sources

LETHALS IN FINITE POPULATIONS [PDF]

open access: yesEvolution, 2002
It has been assumed, based on theoretical studies, that lethals with the level of dominance estimated from experimental studies would have an allele frequency that is virtually independent of effective population size. However, here it is shown numerically that the expected frequency of lethals with low levels of dominance is also dependent on finite ...
openaire   +2 more sources

Dynamic Properties of Evolutionary Multi-player Games in Finite Populations

open access: yesGames, 2013
William D. Hamilton famously stated that “human life is a many person game and not just a disjoined collection of two person games”. However, most of the theoretical results in evolutionary game theory have been developed for two player games.
Bin Wu   +2 more
doaj   +1 more source

The generalization of ratio-cum product estimator for the arbitrary sample design

open access: yesLietuvos Matematikos Rinkinys, 2009
The generalization of a dual to ratio-cum-product estimator of the finite population total for the arbitrary sample design is given. The approximate variance is calculated and variance estimator is constructed.
Ignas Bartkus, Aleksandras Plikusas
doaj   +1 more source

Investigation of Accuracy of a Calibrated Estimator of a Ratio by Modelling

open access: yesNonlinear Analysis, 2005
Estimator of finite population parameter – ratio of totals of two variables – is investigated by modelling in the case of simple random sampling. Traditional estimator of the ratio is compared with the calibrated estimator of the ratio introduced by ...
V. Chadyšas, D. Krapavickaitė
doaj   +1 more source

Estimation of Some Proportion in a Clustered Population

open access: yesNonlinear Analysis, 2009
The aim of this paper is to show that the traditional design-based estimator for the proportion of population units, associated with at least one subunit having an attribute of interest using the two-stage sampling design, is biased.
D. Krapavickaitė
doaj   +1 more source

Generalized Estimator of Finite population Variance [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2015
In this paper a generalized class of finite population variance is suggested and its large sample bias and mean square error are derived. Further some special cases of this class are considered along with a numerical example to compute and compare their ...
A.K.P.C. Swain
doaj   +1 more source

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