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The efficiency of data-Driven Models for Months ahead Groundwater Level forecasting Using a Hybrid Gamma Test and genetic algorithm Model

کلیدواژه: Groundwater levels,Gamma Test,Artificial neural network,SVR,Genetic Algorithm

نویسندگان: mirarabi ali, Naseri Hamidreza, NAKHAEI MOHAMMAD, Alijani Farshad

ناشر: زمین شناسی کاربردی پیشرفته - ADVANCED APPLIED GEOLOGY

In order to implement sustainable groundwater resources management, it is necessary to model the behavior of groundwater level. Groundwater is a nonlinear and complex system which data-driven models can be modeled this system without approximation and simplification. This study evaluates the perform... ادامه

سال:2018

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

12 بازدید

مشاهده/دانلود

Application of Hybrid data Mining Model (genetic algorithm-Wavelet-Deep Neural Network-Monte Carlo method) for forecasting the Price of Agricultural Products: A Case Study of Future Price of Saffron in Agricultural Commodity Exchange

کلیدواژه: Forecasting, Future Price of Saffron, Genetic algorithm, Wavelet Theory, Deep learning Neural Network, Monte Carlo Method

نویسندگان: Heydari Reza, Haj Seyed Javady Seyed Mohammad Reza

ناشر: اقتصاد کشاورزی و توسعه - Journal of Agricultural Economics and Development

The price forecasting and its changes trend is one of the most important factors in decision making and formulating strategies related to agricultural products. This study aimed at presenting a hybrid data mining model for accurate price forecasting of agricultural products, including nonlinear mode... ادامه

سال:2023

لینک به محتوا با زبان هدف

نوع سند: Article

3 دانلود

12 بازدید

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Comparison of Stock Index forecasting Using Hybrid Models Based on genetic algorithm and Harmonic Search with Artificial Neural Network

کلیدواژه: Genetic Algorithms,Harmony Search,Artificial Neural Networks

نویسندگان: DAVALLOU MARYAM, Heidari Toktam

ناشر: اقتصاد مقداری - Journal of Quantitative Economics

This paper is aimed to compare stock index forecasting using hybrid models based on genetic algorithm (GA) and Harmonic Search (HS) with Artificial Neural Network (ANN). The most relevant technical indicators as inputs and the optimal number of neurons in hidden layer of Artificial Neural Network de... ادامه

سال:2018

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

15 بازدید

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Developing a Hybrid Model to Estimate Expected Return Based on genetic algorithm

کلیدواژه: The results show that applying the hybrid model increases the predictive power of realized return compared to other research models

نویسندگان: Asima Mehdi, Abbaszadeh Asl Amir Ali

ناشر: تحقیقات مالی - Financial Research Journal

Objective: Capital asset pricing model (CAPM) has been among the most common models to estimate the expected return. In the standard CAPM model, a) the beta coefficient is fixed and b) the relationship between stock returns and market returns is assumed to be linear. While in Financial markets, it i... ادامه

سال:2019

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

16 بازدید

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Evaluation of Random Forest-genetic algorithm Hybrid Model in Estimating Daily Solar Radiation

کلیدواژه: Ardabil,Intelligent Models,Optimization,Solar Energy

نویسندگان: Hashemi Sajjad, Samadianfard Saeed, Sadraddini Ali Ashraf

ناشر: محیط زیست و مهندسی آب - Environment and Water Engineering

Solar energy is the most important source of renewable energy, in other words, the main source of energy on Earth. Therefore, estimating the solar radiation parameter with high accuracy is very important. In this regard, in the present study, meteorological data of 3 meteorological stations of Ardab... ادامه

سال:2022

لینک به محتوا با زبان هدف

نوع سند: Article

4 دانلود

13 بازدید

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Hybrid time Series Modelling for forecasting the Price of Washed Coffee (Arabica Plantation Coffee) in India

کلیدواژه:

نویسندگان:

ناشر: INTERNATIONAL JOURNAL OF AGRICULTURE SCIENCES - INTERNATIONAL JOURNAL OF AGRICULTURE SCIENCES

... ادامه

سال:2017

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

12 بازدید

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Efficiency of Regression, ANN and ANN-algorithm genetic Hybrid Models in the Evaluation of Wind Erosion

کلیدواژه: Dust,Cla,Organic Matter,MLP,Perceptron

نویسندگان: Ebrahimi Shahin, MOHAMMADI TORKASHVAND ALI, ESFANDIARI MEHRDAD, AHMADI ABBAS

ناشر: حفاظت منابع آب و خاک - JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION

Background and Aim: Wind erosion has occurred in a large part of Iran, which has caused land degradation and reduced fertility along with environmental effects. Identifying erosion-sensitive areas can help natural resource and environmental managers in soil conservation planning. methods: This study... ادامه

سال:2022

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

13 بازدید

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A Hybrid Model of Stochastic Dynamic Programming and genetic algorithm for Multistage Portfolio Optimization with GlueVaR Risk Measurement

کلیدواژه: Portfolio optimization,Stochastic dynamic programming,GlueVaR risk measurement,Genetic algorithm,Scenario constructiom

نویسندگان: Ghandehari Maryam, AZAR ADEL, YAZDANIAN AHMAD REZA, Golarzi Gholamhossein

ناشر: مدیریت صنعتی - Industrial Management Journal

Objective: The selection of an optimal investment portfolio for a long-term period does not seem logical. So the investors should update their investment portfolios over specific time periods if needed. Since the problem dimensions significantly increase after the periods, a definitive solution to t... ادامه

سال:2019

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

10 بازدید

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Optimization and Modeling of Plasma Cutting of AISI 309 Stainless Steel by Using Neural Network-genetic algorithm Hybrid Model

کلیدواژه: Plasma cutting,ANN,Kerf,HAZ,Ra

نویسندگان: Mirabdolahi S.M., ABOOTORABI M.M.

ناشر: مهندسی مکانیک مدرس - Modares Mechanical Engineering

In plasma cutting, a noble gas at high speed is blown from the nozzle and ionized with the help of a frequency spark at high voltage and an electric arc is created which cause the gas changes to the plasma state. Plasma cutting is an ideal process for cutting of the hard metals. In this research, th... ادامه

سال:2019

لینک به محتوا با زبان هدف

نوع سند: Article

0 دانلود

15 بازدید

مشاهده/دانلود

forecasting Stock Price using Hybrid Model based on Wavelet Transform in Tehran and New York Stock market

کلیدواژه: ARIMA-GARCH,Forecasting,Neural Network,Wavelet Transform

نویسندگان: Vafaei Ghaeini Vahid, KIMIAGARI ALIMOHAMMAD, Jafarzadeh Atrabi Mostafa

ناشر: INTERNATIONAL JOURNAL OF FINANCE AND MANAGERIAL ACCOUNTING - INTERNATIONAL JOURNAL OF FINANCE AND MANAGERIAL ACCOUNTING

forecasting Financial markets is an important issue in finance area and research studies. On one hand, the importance of prediction, and on the other hand, its complexity, have led to huge number of researches which have proposed many forecasting methods in this area. In this study, we propose a hyb... ادامه

سال:2018

لینک به محتوا با زبان هدف

نوع سند: Article

3 دانلود

14 بازدید

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