نتایج جستجو برای: neural network

تعداد نتایج: 832182  

Prediction of traffic is very crucial for its management. Because of human involvement in the generation of this phenomenon, traffic signal is normally accompanied by noise and high levels of non-stationarity. Therefore, traffic signal prediction as one of the important subjects of study has attracted researchers’ interests. In this study, a combinatorial approach is proposed for traffic signal...

Abdorrahim Javaherian Mojtaba Mohammadoo Khorasani Shabnam Shahbazi

Geological facies interpretation is essential for reservoir studying. The method of classification and identification seismic traces is a powerful approach for geological facies classification and distinction. Use of neural networks as classifiers is increasing in different sciences like seismic. They are computer efficient and ideal for patterns identification. They can simply learn new algori...

Journal: :پژوهش های علوم دامی ایران 0
جواد ایزی حیدر زرقی

introduction: with using multiple linear regression (mlr), can simultaneously analyses several different variables, but to get the desirable results from the mlr, the samples must be much and accurate. therefore, this method has high sensitivity and may cause errors in results. in addition, to use this method, the variable must have normal distribution and modification follow from a linear rela...

Journal: :international journal of finance, accounting and economics studies 0
ali asghar anvary rostamy professor, accounting and finance department, faculty of management and economics, tarbiat modares university (tmu). nor addin mousazadeh abbasi master in accounting, faculty of management and economics, tarbiat modares university (tmu). mohammad ali aghaei assistant professor, accounting and finance department, faculty of management and economics, tarbiat modares university mahdi moradzadeh fard assistant professor, accounting and finance department, islamic azad university, karaj branch.

the jamor purpose of the present research is to predict the total stock market index of tehran stock exchange, using a combined method of wavelet transforms, fuzzy genetics, and neural network in order to predict the active participations of finance market as well as macro decision makers.to do so, first the prediction was made by neural network, then a series of price index was decomposed by w...

In this paper, we present a recurrent neural network model for solving CCR Model in Data Envelopment Analysis (DEA). The proposed neural network model is derived from an unconstrained minimization problem. In the theoretical aspect, it is shown that the proposed neural network is stable in the sense of Lyapunov and globally convergent to the optimal solution of CCR model. The proposed model has...

ژورنال: علوم آب و خاک 2010

Estimating spatial distribution of precipitation is vital to execute water resources plans, drought, land-use plans environment, watershed management, and agricultural master plans. High variation in amount of precipitation in various parts, lack of measurement stations, and the complexity of relationship between precipitation and parameters affecting it have doubled the importance of developin...

Journal: :international journal of information science and management 0
k. salahshoor ph.d. , department of automation and instrumentation, petroleum university of technology, tehran m. r. jafari m.s. , department of automation and instrumentation, petroleum university of technology, tehran

this paper extends the sequential learning algorithm strategy of two different types of adaptive radial basis function-based (rbf) neural networks, i.e. growing and pruning radial basis function (gap-rbf) and minimal resource allocation network (mran) to cater for on-line identification of non-linear systems. the original sequential learning algorithm is based on the repetitive utilization of s...

Journal: :international journal of energy and environmental engineering 2011
roozbeh zomorodian mohsen rezasoltani mohammad bagher ghofrani

in this paper, the application of neural networks for simulation and optimization of the cogeneration systems has been presented. cgam problem, a benchmark in cogeneration systems, is chosen as a casestudy. thermodynamic model includes precise modeling of the whole plant. for simulation of the steadysate behavior, the static neural network is applied. then using dynamic neural network, plant is...

Journal: :علوم دامی 0
فاطمه سارانی دانش آموخته کارشناسی ارشد، دانشگاه زابل حمیدرضا میرزایی دانشیار ، دانشگاه زابل مصطفی یوسف الهی استادیار، دانشگاه زابل کاوه اکبرزاده مربی، دانشگاه امام رضا علیه السلام محمد صالحی دیندارلو دانش آموخته کارشناسی ارشد

to determine the amount of food amino acid and to spend time in the laboratories are expensive & time-consuming due to a chemical analysis. in the current laboratories, digestion nirs method is widely used for this purpose. but this method has technical limitation. therefor is important find appropriate method for estimate amount of amino acids. artificial neural network (ann) can provide a bet...

Journal: :iranian journal of fuzzy systems 2005
yong soo kim z. zenn bien

the proposed iafc neural networks have both stability and plasticity because theyuse a control structure similar to that of the art-1(adaptive resonance theory) neural network.the unsupervised iafc neural network is the unsupervised neural network which uses the fuzzyleaky learning rule. this fuzzy leaky learning rule controls the updating amounts by fuzzymembership values. the supervised iafc ...

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