Title :
Independent constraint satisfaction and its application to sewerage system control
Author :
Ikeda, Kokolo ; Nagaiwa, Akihiro ; Aoki, Kei ; Kobayashi, Sigenobu
Author_Institution :
Kyoto Univ., Japan
Abstract :
Most real world problems contain complex and various constraints, and this goes for the sewerage system control problem, our target. For handling them, the penalty depending on the degree of violation is often used. However, additive penalty method (APM) often leads the fatal compromise to a local optimum, in this paper we introduce independent constraint satisfaction (ICS). Another difficulty of this problem is the inaccuracy of inflow forecasting, we show the eager re-scheduling is superior to the lazy one.
Keywords :
constraint handling; optimisation; scheduling; sewage treatment; water supply; additive penalty method; independent constraint satisfaction; inflow forecasting; local optimum; re-scheduling approach; real world problems; sewerage system control; Additives; Constraint optimization; Control systems; Decision making; Fluctuations; Genetic algorithms; Logic; Processor scheduling; Proposals; Vents;
Conference_Titel :
Evolutionary Computation, 2003. CEC '03. The 2003 Congress on
Print_ISBN :
0-7803-7804-0
DOI :
10.1109/CEC.2003.1299626