نتایج جستجو برای: random regression model

تعداد نتایج: 2515101  

Journal: :علوم دامی 0
علی محمدی دانش آموخته کارشناسی ارشد، دانشگاه تبریز صادق علیجانی دانشیار، دانشگاه تبریز اکبر تقی زاده استاد، دانشگاه تبریز مهدی بهلولی دانشجوی دکتری، دانشگاه تبریز

in order to estimate the genetic parameters and comparison legendre polynomials for production traits of iranian holstein dairy cattle test-day records of first lactation cows for milk yield, fat yield, protein yield, fat percentage and protein percentage traits were used. these records collected from 2006 to 2010, by the animal breeding center of iran. the genetic parameters were estimated usi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

2017
Wojciech Kotlowski Wouter M. Koolen Alan Malek

FORWARD ALGORITHMS Two observations: • PAVA is efficient and generalizes to partial orders • Follow The Leader algorithms are common in practice Forward Algorithm: To predict at xt, imagine y′ t ∈ [0, 1], compute f∗ on {(x1, y1) . . . (xt−1, yt−1)} ∪ {(xt, y′ t)}, and play ŷt = f(xt). FORWARD ALGORITHM EXAMPLES • IR-Int: Compute f∗ on past data. Predict with average of f∗ at nearest xi. • Inter...

2012
Ian Fellows Mark S. Handcock

Random graphs, where the connections between nodes are considered random variables, have wide applicability in the social sciences. Exponential-family Random Graph Models (ERGM) have shown themselves to be a useful class of models for representing complex social phenomena. We generalize ERGM by also modeling nodal attributes as random variates, thus creating a random model of the full network, ...

2006
Z. Lukovic

Dispersion parameters for the number of piglets born alive were estimated using a repeatability and random regression model. Six sow breeds/lines were included in the analysis: Swedish Landrace, Large White and both crossbred lines between them, German Landrace and their cross with Large White. Fixed part of the model included sow genotype, mating season as month-year interaction, parity and we...

2012
Elisabeth Waldmann Thomas Kneib Yu Ryan Yu Stefan Lang Yu Ryan Yue

Quantile regression provides a convenient framework for analyzing the impact of covariates on the complete conditional distribution of a response variable instead of only the mean. While frequentist treatments of quantile regression are typically completely nonparametric, a Bayesian formulation relies on assuming the asymmetric Laplace distribution as auxiliary error distribution that yields po...

2005
Henriette Engelhardt Alexia Prskawetz

Various authors find that in OECD countries the cross-country correlation between the total fertility rate and the female labour force participation rate turned from a negative value before the 1980s to a positive value thereafter. Based on pooled time series analysis the literature seems to agree that this change is due to unmeasured country and time heterogeneity with respect to female employ...

Journal: :jundishapur journal of health sciences 0
maryam farhadian department of biostatistics, school of public health, hamadan university of medical sciences, hamadan, ir iran hossien mahjub mohsen aliabadi department of occupational health, school of public health, hamadan university of medical sciences, hamadan, ir iran saeed musavi department of biostatistics, school of public health, hamadan university of medical sciences, hamadan, ir iran mehdi jalali department of occupational health, school of public health, hamadan university of medical sciences, hamadan, ir iran

the work exposure conditions such as dust concentration, exposure time, use of respiratory protection devices and smoking status are effective to cause pulmonary function disorder. the objective of this study was prediction of pulmonary disorders in workers exposed to silica dust using artificial neural networks and logistic regression. a sample of 117 out of 150 workers employed in the stone c...

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