نتایج جستجو برای: semi parametric approach

تعداد نتایج: 1454632  

Journal: :journal of research in health sciences 0
ghodratollah roshanaei anoshirvan kazemnejad sanambar sadighi

background: in survival studies when the event times are dependent, performing of the analysis by using of methods based on independent assumption, leads to biased. in this paper, using copula function and considering the dependence structure between the event times, a parametric joint distribution has made fitting to the events, and the effective factors on each of these events would be determ...

Journal: :Journal of Agricultural, Biological, and Environmental Statistics 2015

2001
J Y Richard Liew Brian Uy

This paper presents a simplified approach for the design of semi-continuous composite beams in braced frames, where specific attention is given to the effect of joint rotational stiffness. A simple composite beam model is proposed incorporating the effects of semi-rigid end connections and the non-prismatic properties of a 'cracked' steel-concrete beam. This beam model is extended to a sub-fram...

جان بابایی, قاسم, قربانی قلی‌آباد, سمیه, یزدانی چراتی, جمشید,

Background and purpose: One of the most common methods used to estimate the effects of explanatory variables on survival time, is Cox semi parametric model. However, under certain circumstances, accelerated failure time parametric models are superior to the Cox model. The purpose of this study was to assess the efficiency of parametric and semi-parametric models in survival analysis of patients...

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