Comparing neural networks and Kriging for fitness approximation in evolutionary optimization

نویسندگان

  • Lars Willmes
  • Thomas Bäck
  • Yaochu Jin
  • Bernhard Sendhoff
چکیده

Neural networks and the Kriging method are compared for constructing fitness approximation models in evolutionary optimization algorithms. The two models are applied in an identical framework to the optimization of a number of well known test functions. In addition, two different ways of training the approximators are evaluated: In one setting the models are built off-line using data from previous optimization runs and in the other setting the models are built online from the data available from the current optimization.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Verification of an Evolutionary-based Wavelet Neural Network Model for Nonlinear Function Approximation

Nonlinear function approximation is one of the most important tasks in system analysis and identification. Several models have been presented to achieve an accurate approximation on nonlinear mathematics functions. However, the majority of the models are specific to certain problems and systems. In this paper, an evolutionary-based wavelet neural network model is proposed for structure definiti...

متن کامل

Resampling Methods for Meta-Model Validation with Recommendations for Evolutionary Computation

Meta-modeling has become a crucial tool in solving expensive optimization problems. Much of the work in the past has focused on finding a good regression method to model the fitness function. Examples include classical linear regression, splines, neural networks, Kriging and support vector regression. This paper specifically draws attention to the fact that assessing model accuracy is a crucial...

متن کامل

Multi-objective Evolutionary Optimization of Subsonic Airfoils

This work concerns the application of multi-objective evolutionary optimization by approximation function to 2D aerodynamic design. The new general concept of evolution control is used to on-line enriching the database of correct solutions, which are the basis of the learning procedure for the approximators. Substantially, given an initial very poor model approximation, which means small size o...

متن کامل

Structure optimization of neural networks for evolutionary design optimization

We study the use of neural networks (NN) as approximate models for fitness evaluation in evolutionary computation. To improve the quality of the NN models, structure optimization of these NNs is applied with respect to two different criteria: One is the commonly used approximation error, and the other is the ability of the NNs to learn different problems of a common class of problems. Simulatio...

متن کامل

A Multi-Objective Evolutionary Algorithm Using Neural Networks to Approximate Fitness Evaluations

Two different methods to accelerate the search of a Multi-Objective Evolutionary Algorithm (MOEA) using Artificial Neural Networks are presented. Two different methods are proposed. One using ANN to approximate the fitness of the solutions alternated with the real fitness evaluation, being the ANN approximation used only when the estimated error of the neural network was lower than a pre-define...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003