نتایج جستجو برای: artificial neural network ann

تعداد نتایج: 1040345  

ژورنال: :چشم انداز مدیریت صنعتی 0
علی مروتی شریف آبادی دانشگاه یزد رسول خوانچه مهر دانشگاه یزد

چکیده      تأخیر در تأمین نفت گاز، پیامدهای سیاسی، اجتماعی و اقتصادی وسیعی را به دنبال دارد؛ بنابراین پیش بینی دقیق تقاضای نفت گاز بسیار مهم است. استفاده از شبکه های عصبی مصنوعی در پیش بینی کاربرد زیادی دارد. طراحی مناسب پارامترهای (ساختار) شبکه موجب می شود دقت و عملکرد شبکه های عصبی مصنوعی افزایش یابد. در بیشتر مطالعات از روش سعی و خطا برای تنظیم پارامترهای شبکه های عصبی مصنوعی استفاده می شود ...

Journal: :journal of tethys 0

because of high cost of drilling and analysis of samples, it needs to predict gold and silvers based on pathfinder such as as, sb, cd, pb and zn and decrease the cost and time exploration project implementation. in this paper, the model based on a multilayer perceptron artificial neural network (mlp-ann) optimized by invasive weed optimization algorithm (iwo) to predict of gold and silver in za...

Journal: :Circuits and Systems 2011
Vandana Vikas Thakare Pramod Singhal

Artificial Neural Network (ANNs) techniques are recently indicating a lot of promises in the application of various micro-engineering fields. Such a use of ANNs for estimating the patch dimensions of a microstrip line feed rectangular microstrip patch antennas has been presented in this paper. An ANN model has been developed and tested for rectangular patch antenna design. The performance of th...

Introduction: Logistic regression is one of the modeling methods for bipartite dependent variables. On the other hand, artificial neural network is a flexible method with the least limitation. The importance of growing unnecessary beauty surgeries and the importance of prediction and classification made us consider the present study, with the aim of comparing logistic regression and artificial ...

M. Adamu, O. Austine Uche , S. Philip Bamiyo,

Reinforced concrete (RC) slabs exhibit complexities in their structural behavior under load due to the composite nature of the material and the multitude and variety of factors that affect such behavior. Current methods for determining the load-deflection behavior of reinforced concrete slabs are limited in scope and are mostly dependable on the results of experimental tests. In this study, an ...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

2013
Qi-gao Feng Hao-yu Zhou

Quantum Neural Network (QNN), which integrates the characteristics of Artificial Neural Network (ANN) with quantum theory, is a new study field. It takes advantages of ANN and quantum computing and has a high theoretical value and potential applications. Based on quantum neuron model with a quantum input and output quantum and artificial neural network theory, at the same time, QBP algorithm is...

Introduction: Treatment planning is the most important part of treatment. One of the important entries into treatment planning systems is the beam dose distribution data which maybe typically measured or calculated in a long time. This study aimed at shortening the time of dose calculations using artificial neural network (ANN) and finding the best method of training t...

2013
Abhishek Tripathi P. K. Singhal Vandana Vikas Thakare

In this paper a novel technique is proposed for the estimation of resonant frequency of coaxial feed equilateral triangular microstrip patch antenna. The major advantage of the proposed approach is that, after proper training, proposed neural model completely bypasses the repeated use of complex i terative process for calculation of resonant frequency, thus resulting in an extremely fast soluti...

Journal: :journal of chemical and petroleum engineering 2015
hajir karimi sadra azizi

in this study, a three–layer artificial neural network (ann) model was developed to predict the pressure gradient in horizontal liquid–liquid separated flow. a total of 455 data points were collected from 13 data sources to develop the ann model. superficial velocities, viscosity ratio and density ratio of oil to water, and roughness and inner diameter of pipe were used as input parameters of t...

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