نتایج جستجو برای: genetic algorithms and support vector machines

تعداد نتایج: 16990544  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1389

the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...

2005
Stefan Lessmann Robert Stahlbock Sven F. Crone

In this paper, a combination of genetic algorithms and support vector machines (SVMs) is proposed. SVMs are used for solving classification tasks, whereas genetic algorithms are optimization heuristics combining direct and stochastic search within a solution space. Here, the solution space is formed by combinations of different SVM’s kernel functions and kernel parameters. We investigate classi...

Introduction: Since the delay or mistake in the diagnosis of mood disorders due to the similarity of their symptoms hinders effective treatment, this study aimed to accurately diagnose mood disorders including psychosis, autism, personality disorder, bipolar, depression, and schizophrenia, through modeling and analyzing patients' data. Method: Data collected in this applied developmental resear...

Journal: :Journal of data science 2023

Statistical learning methods have been growing in popularity recent years. Many of these procedures parameters that must be tuned for models to perform well. Research has extensive neural networks, but not many other methods. We looked at the behavior tuning support vector machines, gradient boosting and adaboost both a classification regression setting. used grid search identify ranges where g...

Introduction: Since the delay or mistake in the diagnosis of mood disorders due to the similarity of their symptoms hinders effective treatment, this study aimed to accurately diagnose mood disorders including psychosis, autism, personality disorder, bipolar, depression, and schizophrenia, through modeling and analyzing patients' data. Method: Data collected in this applied developmental resear...

2013
C. Fernandez-Lozano C. Canto M. Gestal J. M. Andrade-Garda J. R. Rabuñal J. Dorado A. Pazos

Given the background of the use of Neural Networks in problems of apple juice classification, this paper aim at implementing a newly developed method in the field of machine learning: the Support Vector Machines (SVM). Therefore, a hybrid model that combines genetic algorithms and support vector machines is suggested in such a way that, when using SVM as a fitness function of the Genetic Algori...

Journal: :تحقیقات مالی 0
سعید فلاح پور استادیار، مدیریت مالی، دانشگاه تهران، ایران غلامحسین گل ارضی استادیار، مدیریت مالی، دانشگاه سمنان، سمنان، ایران ناصر فتوره چیان کارشناس ارشد، mba گرایش مدیریت مالی، دانشگاه سمنان، سمنان، ایران

according to recent developments of predicting methodsin financial markets, and since the stock price is one of the mostimportant factors for investment decision-making, and its predictioncan play an important role in this field, the aim of this study is toprovide a model to predict the stock price movement with highaccuracy. accordingly, a hybrid model for predicting the stock pricemovement us...

Representation of a granule, relation and operation between two granules are mainly researched in granular computing. Hyperbox granular computing classification algorithms (HBGrC) are proposed based on interval analysis. Firstly, a granule is represented as the hyperbox which is the Cartesian product of $N$ intervals for classification in the $N$-dimensional space. Secondly, the relation betwee...

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