Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification
System identification is a method of determining a mathematical relation between variables and terms of a process based on observed input-output data. Model structure selection is one of the important steps in a system identification process. Evolutionary computation (EC) is known to be an effective...
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| Format: | Article |
| Language: | English |
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Westing Publishing Co., Fremont
2011
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| Online Access: | http://eprints.utem.edu.my/id/eprint/3673/ http://eprints.utem.edu.my/id/eprint/3673/1/format-IJICS-MSWord%2520Samad%5B1%5D.pdf |
| _version_ | 1848886956117721088 |
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| author | Abd Samad, Md Fahmi |
| author_facet | Abd Samad, Md Fahmi |
| author_sort | Abd Samad, Md Fahmi |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | System identification is a method of determining a mathematical relation between variables and terms of a process based on observed input-output data. Model structure selection is one of the important steps in a system identification process. Evolutionary computation (EC) is known to be an effective search and optimization method and in this paper EC is proposed as a model structure selection algorithm. Since EC, like genetic algorithm, relies on randomness and probabilities, it is cumbersome when constraints are present in the search. In this regard, EC requires the incorporation of additional evaluation functions, hence, additional computation time. A deterministic mutation-based algorithm is introduced to overcome this problem. Identification studies using NARX (Nonlinear AutoRegressive with eXogenous input) models employing simulated systems and real plant data are used to demonstrate that the algorithm is able to detect significant variables and terms faster and to select a simpler model structure than other well-known EC methods. |
| first_indexed | 2025-11-15T19:46:43Z |
| format | Article |
| id | utem-3673 |
| institution | Universiti Teknikal Malaysia Melaka |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T19:46:43Z |
| publishDate | 2011 |
| publisher | Westing Publishing Co., Fremont |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utem-36732021-11-24T12:45:43Z http://eprints.utem.edu.my/id/eprint/3673/ Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification Abd Samad, Md Fahmi TA Engineering (General). Civil engineering (General) System identification is a method of determining a mathematical relation between variables and terms of a process based on observed input-output data. Model structure selection is one of the important steps in a system identification process. Evolutionary computation (EC) is known to be an effective search and optimization method and in this paper EC is proposed as a model structure selection algorithm. Since EC, like genetic algorithm, relies on randomness and probabilities, it is cumbersome when constraints are present in the search. In this regard, EC requires the incorporation of additional evaluation functions, hence, additional computation time. A deterministic mutation-based algorithm is introduced to overcome this problem. Identification studies using NARX (Nonlinear AutoRegressive with eXogenous input) models employing simulated systems and real plant data are used to demonstrate that the algorithm is able to detect significant variables and terms faster and to select a simpler model structure than other well-known EC methods. Westing Publishing Co., Fremont 2011-09 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/3673/1/format-IJICS-MSWord%2520Samad%5B1%5D.pdf Abd Samad, Md Fahmi (2011) Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification. International Journal of Intelligent Control and Systems, 16 (3). pp. 182-190. ISSN 02187965 http://www.ijics.org/ |
| spellingShingle | TA Engineering (General). Civil engineering (General) Abd Samad, Md Fahmi Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title | Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title_full | Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title_fullStr | Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title_full_unstemmed | Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title_short | Deterministic Mutation-Based Algorithm for Model Structure Selection in Discrete-Time System Identification |
| title_sort | deterministic mutation-based algorithm for model structure selection in discrete-time system identification |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utem.edu.my/id/eprint/3673/ http://eprints.utem.edu.my/id/eprint/3673/ http://eprints.utem.edu.my/id/eprint/3673/1/format-IJICS-MSWord%2520Samad%5B1%5D.pdf |