## Abstract

This paper presents a neural network approach to improving the identification of nonlinear polynomial model. The idea is to realize the identification in two steps. In the first step, a quasi-ARX neural network is first used to approximate the system under study; then a reasonable number of important monomial terms are selected as candidates, by introducing an importance index based on a Taylor expansion of the identified quasi-ARX neural network; In the second step, Genetic algorithm (GA) is applied to the selected important terms to further determine a set of significant terms to include in the polynomial model. In this way, the whole identification algorithm is implemented very efficiently. Numerical simulations are carried out to demonstrate the effectiveness of the proposed two-step identification method.

Original language | English |
---|---|

Pages | 1662-1667 |

Number of pages | 6 |

Publication status | Published - 2005 Dec 1 |

Event | SICE Annual Conference 2005 - Okayama, Japan Duration: 2005 Aug 8 → 2005 Aug 10 |

### Conference

Conference | SICE Annual Conference 2005 |
---|---|

Country | Japan |

City | Okayama |

Period | 05/8/8 → 05/8/10 |

## Keywords

- Genetic algorithm
- Identification
- Neural network
- Nonlinear polynomial model
- Poly-nomial expansion

## ASJC Scopus subject areas

- Control and Systems Engineering
- Computer Science Applications
- Electrical and Electronic Engineering