scholarly journals Evolutionary Optimization of Case-Based Forecasting Algorithms in Chaotic Environments

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 301
Author(s):  
Alexander Musaev ◽  
Ekaterina Borovinskaya

The problem of dynamic adaptation of prediction algorithms in chaotic environments based on identification of the situations-analogs in the database of retrospective observations is considered. Under conditions of symmetrical and unsymmetrical chaotic dynamics, traditional computational schemes of precedent prediction turn out to be ineffective. In this regard, a dynamic adaptation of precedent analysis algorithms based on the method of evolutionary modeling is proposed. Implementation of the computational precedent prediction scheme for chaotic processes as well as the evolutionary modeling method are described.

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Marco Perez-Cisneros ◽  
Gerardo Garcia-Gil ◽  
Sabrina Vega-Maldonado ◽  
J. Arámburo-Lizárraga ◽  
Erik Cuevas ◽  
...  

This paper presents a predictive control strategy for an image-based visual servoing scheme that employs evolutionary optimization. The visual control task is approached as a nonlinear optimization problem that naturally handles relevant visual servoing constraints such as workspace limitations and visibility restrictions. As the predictive scheme requires a reliable model, this paper uses a local model that is based on the visual interaction matrix and a global model that employs 3D trajectory data extracted from a quaternion-based interpolator. The work assumes a free-flying camera with 6-DOF simulation whose results support the discussion on the constraint handling and the image prediction scheme.


2014 ◽  
Vol 487 ◽  
pp. 389-393
Author(s):  
Jian Zhao Zhou ◽  
Li Qun Han ◽  
Xiao Pan Xu ◽  
Wei Jun Chu

Using NURBS modeling method can construct more realistic and vivid 3D models, because it has a remarkable ability to control the curves of the model surface than the traditional grid modeling method. Therefore, on analysis of the primary principles of NURBS, this paper adopted professional modeling software 3DS MAX to explore the methods and techniques of NURBS in the complex surface building process. And then, the techniques and methods were applied to construct practical engineering machinery, completing the 3D model of bulldozer case.


2016 ◽  
Vol 22 ◽  
pp. 48-49
Author(s):  
Amy Larkin ◽  
Colleen Healy ◽  
Anne Le

2013 ◽  
Author(s):  
John H. J. Wokke ◽  
Pieter A. van Doorn ◽  
Jessica E. Hoogendijk ◽  
Marianne de Visser

Author(s):  
Gregory L. Baker ◽  
Jerry P. Gollub
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document