نتایج جستجو برای: genetic algorithm multiple linear regression

تعداد نتایج: 2493640  

Journal: :iranian journal of neurology 0
hamidreza hatamian associate professor, department of neurology, poursina hospital, guilan university of medical sciences, rasht, iran. elham bidabadi assistant professor, department of pediatric neurology, guilan university of medical sciences, rasht, iran seyed mohammad seyed saadat medical student, medical student research committee, guilan university of medical sciences, rasht, iran niloufar seyed saadat medical student, medical student research committee, guilan university of medical sciences, rasht, iran ehsan kazemnezhad trauma research center, guilan university of medical sciences, rasht, iran hamed ramezani resident, department of neurology, poursina hospital, guilan university of medical sciences, rasht, iran

background: although the precise etiology of multiple sclerosis (ms) is unknown, it seems that both genetic and environmental factors are important. recent studies suggest that low serum vitamin d levels are important environmental factor in ms. the aim of this study was to compare the serum levels of vitamin d between ms patients and healthy subjects, and to determine its association with disa...

Journal: :journal of advances in computer research 2013
meissam khatibi nia ali akbar gharaveisi

controller design and optimization problems, with more than one objective, are referred as multiple objectives or multiple attributed problems. in this paper, a novel method is proposed for designing optimum pid controller that is called genetic multiple attributed decision making method (gmadm). this method is newer than the previous methods and in this paper some options are considered that h...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
karim salahshoor mohammad reza bayat mohsen mosallaei

this paper presents a methodology for design of instrumentation sensor networks in non-linear chemical plants. the method utilizes a robust extended kalman filter approach to provide an efficient dynamic data reconciliation. a weighted objective function has been introduced to enable the designer to incorporate each individual process variable with its own operational importance. to enhance the...

Journal: :journal of optimization in industrial engineering 2016
javad rezaeian keyvan shokoufi sepide haghayegh iraj mahdavi

this paper aims to investigate the integrated production/distribution and inventory planning for perishable products with fixed life time in the constant condition of storage throughout a two-echelon supply chain by integrating producers and distributors. this problem arises from real environment in which multi-plant with multi-function lines produce multi-perishable products with fixed life ti...

Journal: :Journal of Advanced Research in Applied Sciences and Engineering Technology 2023

The concept that a cross correlation might improve prediction error underpins machine learning algorithms for multi-target regression (MTR). Numerous MTR approaches have been created in recent years, however there are still uncertainties concerning how their performances impacted by dataset properties such as linearity, number of targets, and correlational complexity. In order to contribute bet...

Journal: :iranian journal of numerical analysis and optimization 0
maryam mojarrab faezeh toutounian

lsmr (least squares minimal residual) is an iterative method for the solution of the linear system of equations and leastsquares problems. this paper presents a block version of the lsmr algorithm for solving linear systems with multiple right-hand sides. the new algorithm is based on the block bidiagonalization and derived by minimizing the frobenius norm of the resid ual matrix of normal equa...

The IL-1β play a major role in inflammatory disorders and IL-1β production inhibitors can be used in the treatment of inflammatory and related diseases. In this study, quantitative relationships between the structures of 46 pyridazine derivatives (inhibitors of IL-1β production) and their activities were investigated by Multiple Linear Regression (MLR) technique Stepwise Regression Method (ES-S...

Darakhshan Jazari, Milad , Heidari, Hamidreza , Mohammad, Heidar , Mohammadbeigi, Abolfazl , Sarsangi, Vali , Soltanzadeh, Ahmad ,

Introduction: The causal analysis of occupational accidents’ severity in the chemical industries may improve safety design programs in these industries. This comprehensive study was implemented to analyze the factors affecting occupational accidents’ severity in the chemical industries. Methods and Materials: An analytical study was conducted in 22 chemical industries during 2016-2017. The stu...

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