نتایج جستجو برای: neural network rfnn

تعداد نتایج: 832184  

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
s. m. taghavi takyar r. aghajan nashtaei e. chirani

one of the most important issues always facing banks and financial institutes is the issue of credit risk or the possibility of failure in the fulfillment of obligations by applicants who are receiving credit facilities. the considerable number of banks’ delayed loan payments all around the world shows the importance of this issue and the necessary consideration of this topic. accordingly, many...

In this paper, a novel hybrid method based on learning algorithmof fuzzy neural network and Newton-Cotesmethods with positive coefficient for the solution of linear Fredholm integro-differential equation of the second kindwith fuzzy initial value is presented. Here neural network isconsidered as a part of large field called neural computing orsoft computing. We propose alearning algorithm from ...

Journal: :پژوهش های جغرافیای طبیعی 0
مژگان احمدی ندوشن علیرضا سفیانیان سیدجمال الدین خواجه الدین

land cover map is important for many urban planning and management activities. in this study, in order to produce land cover map of arak city, digital image of liss-iii scanner acquired on 16 june 2006 were employed. first of all, geometric correction with rmse 0.58 pixel was applied. considering the mountainous condition of the study area, topographic correction was applied to the image. in su...

Journal: :مهندسی صنایع 0
سهراب پوررضا دانشجوی کارشناسی ارشد فناوری اطلاعات- دانشگاه تربیت مدرس حسین اکبری پور دانش آموخته کارشناسی ارشد مهندسی صنایع- دانشگاه تربیت مدرس محمدرضا امین ناصری دانشیار بخش مهندسی صنایع- دانشگاه تربیت مدرس

in today’s business competitive world, decision makers of companies try to employ standard, efficient, theoretical and operational proven methods as a competitive advantage for making their critical strategic business decisions in order to survive in their industry. in this paper, a hybrid model based on fuzzy analytic hierarchy process (fahp) and artificial neural network (ann) is presented. t...

Classrooms, as one of the most important educational environments, play a major role in the learning and academic progress of students. reverberation time, as one of the most important acoustic parameters inside rooms, has a significant effect on sound quality. The inefficiency of classical formulas such as Sabin, caused this article to examine the use of machine learning methods as an alternat...

Journal: :journal of the structural engineering and geotechnics 0
hassan aghabarati department of civil and architectural engineering, islamic azad university, qazvin branch, iran mohsen tabrizizadeh department of civil and environmental engineering, amirkabir university of technology, tehran, iran

this paper presents the application of three main artificial neural networks (anns) in damage detection of steel bridges. this method has the ability to indicate damage in structural elements due to a localized change of stiffness called damage zone. the changes in structural response is used to identify the states of structural damage. to circumvent the difficulty arising from the non-linear n...

ژورنال: سلامت و محیط زیست 2015
جعفری , حمیده , رجایی, طاهر , رحیمی بنماران, رقیه,

Background & Objectives: The prediction and quality control of the Karaj River water, as one of the important needed water supply sources of Tehran, possesses great importance. In this study, performance of artificial neural network (ANN), combined wavelet-neural network (WANN), and multi linear regression (MLR) models were evaluated to predict next month nitrate and dissolved oxygen of “Pole K...

Abazar Solgi, Behdad Falamarzi Heidar Zarei

Precipitation forecasting due to its random nature in space and time always faced with many problems and this uncertainty reduces the validity of the forecasting model. Nowadays nonlinear networks as intelligent systems to predict such complex phenomena are widely used. One of the methods that have been considered in recent years in the fields of hydrology is use of wavelet transform as a moder...

Journal: :international journal of advanced design and manufacturing technology 0
ahmad haghani department of mechanics, faculty of engineering, shahrekord branch, islamic azad university, shahrekord, iran

strip tearing during cold rolling process has always been considered among the main concerns for steel companies. several works have been done so far regarding the examination of the issue. in this paper, experimental data from cold rolling tandem mill is used for detecting strip tearing. sensors are placed across the cold rolling tandem mill. they receive information on parameters (such as ang...

Journal: :international journal of environmental research 2011
f. nejadkoorki s. baroutian

life style and life expectancy of inhabitants have been affected by the increase of particulate matter 10 micrometers or less in diameter (pm10) in cities and this is why maximum pm10 concentrations have received extensive attention. an early notice system for pm10 concentrations necessitates an accurate forecasting of the pollutant. in the current study an artificial neural network was used t...

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