نتایج جستجو برای: inverse gaussian distribution

تعداد نتایج: 751007  

2013
David D. Hanagal Richa Sharma

In this paper, we consider shared frailty model with inverse Gaussian distribution as frailty distribution and log-logistic distribution (LLD) as baseline distribution for bivariate survival times. We fit this model to three real life bivariate survival data sets. The problem of analyzing and estimating parameters of shared inverse Gaussian frailty is the interest of this paper and then compare...

Journal: :تحقیقات مالی 0
محمد علی کفایی دانشیار اقتصاد، دانشگاه رایس، هاستون، ایالات متحدۀ آمریکا هادی رحمانی فضلی دانشجوی دکتری علوم اقتصادی، دانشگاه شهید بهشتی، تهران، ایران

this paper measures event risk which is introducing by the ball committee to measure the effect of sudden news. this study calculates event risk by using the data of registered firms in tehran stock market between 1993 and 1994. for computing event risk, we use daily market capitalization for 80 firms during 1993-2009, then dividing these firms to three baskets; big, medium and small. the model...

Journal: :Journal of Statistical Computation and Simulation 2001

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2014
mohammad riahi mohamad hoseinpour gollo seiied nader ameli kalkhoran

laser forming is a modern process which is mainly used for forming metals. different lasers are used in this regard that includes nd: yag and co2. in this study, forming bi-layer sheets of aluminum/ceramic by laser was investigated. furthermore, effect of uniform and gaussian heat flux distribution in different power, velocity, and beam diameters on bending angle was studied. fem simulation ind...

2015
WEN-XIU GONG LING-YUN GAO

Options is an important financial derivative products, therefore it is important to reasonable pricing. According to the financial asset returns typically exhibit the feature of aiguilles large remaining part and hypothesis, it obeys normal inverse Gaussian distribution, using Monte Carlo simulation based on normal inverse Gaussian distribution on its pricing and improving it by antithesis vari...

Journal: :journal of biostatistics and epidemiology 0
mahmood sheikh-fathollahi department of social medicine and occupational environment research center, medical school, rafsanjan university of medical sciences, rafsanjan, iran mahmood mahmoodi department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran kazem mohammad department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran hojjat zeraati department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran arash jalali department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran

b a c k g r o u n d & aim: the excess hazard rate proposed by andersen and vaeth may underestimate the long-term excess hazard rate for cancer survival. zahl explained the phenomenon by continuous selection of the most robust individuals after diagnosis. he applied correlated inverse gaussian and gamma  frailty  models  to estimate  excess  intensity  and reached  a better  estimate  of the rat...

2012
R. K. Saxena Ravi Saxena

In view of their importance and usefulness in reliability theory and probability distributions, several generalizations of the inverse Gaussian distribution and the Krätzel function are investigated in recent years. This has motivated the authors to introduce and study a new generalization of the inverse Gaussian distribution and the Krätzel function associated with a product of a Bessel functi...

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