Results 61 to 70 of about 33,613 (202)
Weighted Sum of Correlated Lognormals: Convolution Integral Solution
, 2011 Probability density function (pdf) for sum of n correlated lognormal variables is deducted as a special convolution integral. Pdf for weighted sums (where weights can be any real numbers) is also presented.
Nagy, Tamás
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Size Distributions for All Cities: Lognormal and q-exponential functions [PDF]
This paper analyses in detail the features offered by a function which is practically new to Urban Economics, the q-exponential, in describing city size distributions. We highlight two contributions.
Rafael González-Val +2 more
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Parameters of lognormal contrast distribution.
, 2014 Parameters of the lognormal distributions of the r.m.s. contrasts of our database. μ is the expected value, σ2 the variance of the distribution; both parameters were obtained by a lognormal fit to the distribution. n is the number of elements.
Jens Peter Lindemann (111) +2 more
core +1 more source
Discover Applied SciencesThis study investigates the impact of calcination temperature (700 °C, 750 °C, and 800 °C) on the particle size distribution (PSD) of brown and red clays from Kongo-Central province in the D.R. Congo, using laser granulometry.
Seke Vangu Max +6 more
doaj +1 more source
Prevention of postpartum haemorrhage: a distributional approach for analysis
Reproductive Health, 2018 Background There is empirical evidence that measured postpartum blood loss has a lognormal distribution. This feature can be used to analyze events of the type ‘blood loss greater than a certain cutoff point’ using a lognormal approach, which takes into ...
Gilda Piaggio +2 more
doaj +1 more source
Statistical Properties of Forward Libor Rates [PDF]
historical forward rates are used to calibrate the lognormal forward rate model - as advocated by Hull and White (1999, 2000), Longstaff, Santa Clara and Schwartz (1999), Rebonato (1999a,b,c), Rebonato and Joshi (2001) and many others - a Libor yield ...
Dimitri Lvov, Carol Alexander
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تطبيق النماذج المركبة في توفيق بيانات مطالبات التأمينات العامة [PDF]
المجلة العلمية للدراسات والبحوث المالية والتجاريةيهدف هذا البحث إلى استخدام النماذج المركبة للتوزيع اللوغاريتمي الطبيعي- باريتو (Composite Lognormal-Pareto) والنماذج المركبة لتوزيع وايبل - باريتو(Composite Weibull -Pareto) في نمذجة بيانات المطالبات في شركات التأمين، ثم المقارنة بين هذه النماذج ...
محمد مسعد المعداوي
doaj +1 more source
Some Composite ExponentialPareto Models for Actuarial Prediction [PDF]
Prediction is a very important and not so easy task for an actuary. An insurance company needs predictions of the future claims in order to evaluate premiums, to assess its financial situation, probabilities of ruin, etc.
Teodorescu, Sandra, Vernic, Raluca
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Distribution of postpartum blood loss: modeling, estimation and application to clinical trials
Reproductive Health, 2018 o Antecedentes La pérdida de grandes cantidades de sangre después del parto puede llevar a morbilidad y mortalidad materna severas. Entender la naturaleza de la pérdida de sangre postparto es crítico para el desarrollo de técnicas de análisis eficientes ...
José Ferreira de Carvalho +4 more
doaj +1 more source
A new De Vylder type approximation of the ruin probability in infinite time [PDF]
In this paper we introduce a generalization of the De Vylder approximation. Our idea is to approximate the ruin probability with the one for a different process with gamma claims, matching first four moments.
Aleksander Weron +2 more
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