نتایج جستجو برای: performance parameter

تعداد نتایج: 1235477  

Journal: :journal of agricultural science and technology 2010
l. parviz m. kholghi a. hoorfar

the forecasting of hydrological variables, such as streamflow, plays an important role in water resource planning and management. recently, the development of stochastic models is regarded as a major step for this purpose. streamflow forecasting using the arima model can be conducted when unknown parameters are estimated correctly because parameter estimation is one of the crucial steps in mode...

ژورنال: اندیشه آماری 2011
Ahmadi, A, Talebi, H,

In this paper some new methods whitch very recently have been introduced for parameter estimation and variable selection in regression models are reviewd. Furthermore , we simulate several models in order to evaluate the performance of these methods under diffrent situation. At last we compare the performance of these methods with that of the regular traditional variable selection methods such ...

Journal: :فصلنامه تحقیقات کاربردی در علوم دامی 0
سید عبداله حسینی استادیار، موسسه تحقیقات علوم دامی کشور حسین جوزانی دانش آموخته کارشناسی ارشد دانشگاه آزاد ورامین هوشنگ لطف الهیان استادیار، موسسه تحقیقات علوم دامی کشور

in order to investigate effect of methionine levels in starter diet on performance, immunity and blood parameter of arian broilers chickens during the starter period, a trial with 700 broiler chickens in a completely randomized design with 7 treatments, 5 replicates and 20 chicks in each experimental unit was performed. experimental groups were consisted of 0.38, 0.43, 0.48, 0.53, 0.58, 0.63 an...

Journal: :CoRR 2018
Liang Luo Jacob Nelson Luis Ceze Amar Phanishayee Arvind Krishnamurthy

Most work in the deep learning systems community has focused on faster inference, but arriving at a trained model requires lengthy experiments. Accelerating training lets developers iterate faster and come up with better models. DNN training is often seen as a compute-bound problem, best done in a single large compute node with many GPUs. As DNNs get bigger, training requires going distributed....

2006
Dave Cochran

My intention in this paper is to outline and motivate a novel theory of syntactic bootstrapping, Exemplar-Based Phonological Bootstrapping (EBPB), based on Stochastic Tree-Substitution Grammar. Because I have outlined the basic structure of STSG in other places for assessed work on this degree, I will not recapitulate that work in the body of the present paper, but will instead quote it in full...

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In this study, Pure and doped titania sols with Fluorine (F/Ti:0.06) dopant, were prepared by sol-gel method and Ammonium Fluoride(NH4F) as the precursor. They were deposited on glass substrates (soda lime) in a certain(optimum) nanometric thickness by the dip coating method. Coated samples were dried and calcined under the specific rate. Phase composition and optical properties of coatings wer...

Kourosh Arbabi, Zahra Saberi

Introduction: Due to its simplicity, fast response and high reliability, ion chamber detectors are one of the most suitable dosimetry instruments for X and gamma rays. The dosimeter    of photon beams, which used in radiotherapy centers, requires high accuracy and should pass requirements of IEC 60731 standards. About 80 percent of the IEC 60731 standard tests such as stabil...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم ریاضی و مهندسی کامپیوتر 1392

heuristics are often used to provide solutions for flow shop scheduling problems.the performance of a heuristic is usually judged by comparing solutions and run times on test cases.this investigation proposes an analytical alternative ,called asymptotic convergence ,which tests the convergence of the heuristic to a lower bound as problem size grows. the test is a stronger variation of worst cas...

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