Results 11 to 20 of about 97,712 (261)
Evolutionary processes in finite populations [PDF]
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
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Estimation of a Ratio in the Finite Population [PDF]
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
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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
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Finding the Size of a Finite Population [PDF]
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
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LETHALS IN FINITE POPULATIONS [PDF]
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 ...
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Dynamic Properties of Evolutionary Multi-player Games in Finite Populations
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
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The generalization of ratio-cum product estimator for the arbitrary sample design
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
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Investigation of Accuracy of a Calibrated Estimator of a Ratio by Modelling
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
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Estimation of Some Proportion in a Clustered Population
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
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Generalized Estimator of Finite population Variance [PDF]
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
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