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Abstract
The Scientific World Journal has retracted the article titled “Dynamic Harmony Search
with Polynomial Mutation Algorithm for Valve-Point Economic Load Dispatch” [1]. After
conducting a thorough investigation, we have strong reason to believe that the peer
review process was compromised.
This article was originally submitted to a Special Issue titled “Recent Advances in
Metaheuristics and Its Hybrids.” In late 2015, Dr. Xavier Delorme, the lead guest
editor on the Special Issue, alerted us that his identity had been compromised. After
further investigation, we discovered that several peer review reports in this issue
had been submitted from similarly compromised email accounts.
We are retracting the articles in keeping with the “COPE statement on inappropriate
manipulation of the peer review process.” There is no evidence that any of the authors
or editors, including Dr. Delorme, were aware of this misconduct.
Economic load dispatch (ELD) problem is an important issue in the operation and control of modern control system. The ELD problem is complex and nonlinear with equality and inequality constraints which makes it hard to be efficiently solved. This paper presents a new modification of harmony search (HS) algorithm named as dynamic harmony search with polynomial mutation (DHSPM) algorithm to solve ORPD problem. In DHSPM algorithm the key parameters of HS algorithm like harmony memory considering rate (HMCR) and pitch adjusting rate (PAR) are changed dynamically and there is no need to predefine these parameters. Additionally polynomial mutation is inserted in the updating step of HS algorithm to favor exploration and exploitation of the search space. The DHSPM algorithm is tested with three power system cases consisting of 3, 13, and 40 thermal units. The computational results show that the DHSPM algorithm is more effective in finding better solutions than other computational intelligence based methods.
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provided the original work is properly cited.