Erratum for “Exploration of the Trade-Offs between Water Quality and Pumping Costs in Optimal Operation of Regional Multiquality Water Distribution Systems” by Helena Mala-Jetmarova, Andrew Barton, and Adil Bagirov
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VIEW THE REPLYPublication: Journal of Water Resources Planning and Management
Volume 141, Issue 2
Errors during the composition process resulted in potentially confusing notation.
In the subsection “NSGA-II,” the equation for incorrectly doubles the term . The sentence should be revised as “The process is then repeated by creating the population of the size , forming nondominated sets and creating the new population and so on, until stopping criteria is met.”
In footnote to Table 1, two instances of “24 1-h intervals” were changed to “241-h intervals.” The corrected table is presented.
| Network | Parameter | Parameter values tested | Parameter values selected |
|---|---|---|---|
| Ostfeld | Population size | 50, 100, 150, 200, 300, 400 | 300 |
| Number of generations | 500, 1,000, 2,000 | 2,000 | |
| Mutation operator | 0.002, 0.005a, 0.01, 0.1 (type simple by gene) | 0.005 simple by gene | |
| Crossover operator | 0.6, 0.7, 0.8, 0.9, 1.0 (types simple one point, simple multipoint) | 0.7 simple multipoint | |
| 1.0 simple one point | |||
| Anytown | Population size | 50, 100, 150, 200, 300, 400 | 100 |
| Number of generations | 500, 1,000, 2,000 | 2,000 | |
| Mutation operator | 0.005, 0.01a (type simple by gene) | 0.01 simple by gene | |
| Crossover operator | 0.6, 0.7, 0.8, 0.9, 1.0 (types simple one point, simple multipoint) | 0.6 simple multipoint | |
| 0.8 simple multipoint |
a
and , where the values of 192 and 96, respectively, represent the number of decision variables (8 pumps × 24 1-h intervals and 4 pumps × 24 1-h intervals).
The notation list misidentifies the symbol used to indicate efficiency of pump as . The correct symbol is .
ASCE regrets these errors.
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Published In
Journal of Water Resources Planning and Management
Volume 141 • Issue 2 • February 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 10, 2014
Accepted: Oct 22, 2014
Published online: Nov 26, 2014
Published in print: Feb 1, 2015
Discussion open until: Apr 26, 2015
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