ABSTRACT
A bio-retention system is an important measure for non-point source pollution control. In order to improve the calculation precision for parameter optimization of the moisture movement in a bio-retention system, a real-encoded genetic algorithm based on the fractional-order operation is proposed, in which initial populations are generated by random mapping, and the searching range is automatically renewed with the excellent individuals by fractional-order particle swarm optimization operation. Its efficiency is verified experimentally. The results indicate that the absolute error by the fractional-order operation decreases by 67.73%, 62.23%, and 4.16%, and the relative error decreases by 42.88%, 35.76%, and 6.77%, respectively, compared to those by the standard binary-encoded genetic algorithm, random algorithm, and the particle swarm optimization algorithm. The fractional-order operation has higher precision and it is good for the practical parameter optimization in ecological environment systems.
KEYWORDS
PAPER SUBMITTED: 2018-03-29
PAPER REVISED: 2018-04-29
PAPER ACCEPTED: 2018-06-29
PUBLISHED ONLINE: 2019-09-14
THERMAL SCIENCE YEAR
2019, VOLUME
23, ISSUE
Issue 4, PAGES [2343 - 2350]
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