نتایج جستجو برای: prediction models

تعداد نتایج: 1108474  

Prediction of daily evaporation is a valuable and determinant tool in sustainable agriculture and hydrological issues, especially in the design and management of water resources systems. Therefore, in this study, the ability of artificial intelligence models of multi-layer perceptron (MLP), support vector regression (SVR), and the hybrid model of support vector regression-firefly optimization a...

Journal: :shiraz journal of system management 0
mohsen hajiamiri department of industrial engineering, zahedan branch, islamic azad university, zahedan, iran mohammad reza shahraki department of industrial engineering, university of sistan and baluchistan, zahedan, iran seyyed masoud barakati university of sistan and baluchistan, zahedan, iran

the bankruptcy prediction models have long been proposedas a key subject in finance. the present study, therefore, makes aneffort to examine the corporate bankruptcy prediction through employmentof the genetic algorithm model. furthermore, it attempts to evaluatethe strategies to overcome the drawbacks of ordinary methods forbankruptcy prediction through application of genetic algorithms. thesa...

Journal: :journal of particle science and technology 0
aboutaleb ghadami jadval ghadam departments of chemical & petroleum engineering, yasooj branch, islamic azad university, yasooj, i.r. iran

in this research, the influence of adding micro- and nano- sized calcium carbonate powders to nylon-66 was investigated. mechanical properties of micro and nano- composites, including tensile strength, elongation, and young’s modulus, before and after ageing, were determined and analyzed. for this purpose, micro- and nano-sized caco3 particles were used as fillers to prepare micro-composites (c...

Journal: :international journal of finance, accounting and economics studies 0

the main focus in this study is on data pre-processing, reduction in number of inputs or input space size reduction the purpose of which is the justified generalization of data set in smaller dimensions without losing the most significant data. in case the input space is large, the most important input variables can be identified from which insignificant variables are eliminated, or a variable ...

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...

Prediction of economic variables is a basic component not only for economic models, but also for many business decisions. But it is difficult to produce accurate predictions in times of economic crises, which cause nonlinear effects in the data. Such evidence appeared in the German automobile industry as a consequence of the financial crisis in 2008/09, which influenced exchange rates and a...

ژورنال: علوم آب و خاک 2010
دستورانی, محمدتقی , افخمی, حمیده , مبین, حسین , ملکی نژاد, حسین ,

Drought is a natural feature of the climate condition, and its recurrence is inevitable. The main purpose of this research is to evaluate the effects of climatic factors on prediction of drought in different areas of Yazd based on artificial neural networks technique. In most of the meteorological stations located in Yazd area, precipitation is the only measured factor while generally in synopt...

Journal: :Journal of Business & Economic Statistics 2017

Journal: :Journal of Eye Movement Research 2009

Journal: :Journal of Theoretical Chemistry 2014

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