An efficient algorithm and complexity result for solving the sum of general affine ratios problem

In this paper, with the unique hypothesis that the denominator is not equal to 0, an efficient outer space rectangle branch-and-bound algorithm is presented to globally solve the sum of general affine ratios problem. By using equivalent transformation and the characteristics of general single ratio...

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Veröffentlicht in:Chaos, solitons and fractals Jg. 164; S. 112701
Hauptverfasser: Jiao, Hongwei, Ma, Junqiao
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 01.11.2022
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ISSN:0960-0779, 1873-2887
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Abstract In this paper, with the unique hypothesis that the denominator is not equal to 0, an efficient outer space rectangle branch-and-bound algorithm is presented to globally solve the sum of general affine ratios problem. By using equivalent transformation and the characteristics of general single ratio function, a linear program relaxation problem is constructed for computing the lower bound of the global minimum value of the original problem. Moreover, to enhance the running speed of the presented algorithm, we design an outer space accelerating technic for deleting the entire outer space rectangle or a part of the entire examined outer space rectangle, in which there contains no the global minimum point of the equivalent problem. Furthermore, through the complexity analysis of the presented algorithm, we estimate its maximum iteration times. In addition, we prove the global convergence of the presented algorithm, report and analyze the numerical computational results for indicating the validity of the presented algorithm. Finally, two practical problems from power transportation and production planning are solved to verify the usefulness of the presented algorithm. •We present a novel outer space branch-and-bound algorithm for the SGAR.•The algorithm economizes the required computations by dividing space.•The main calculation involves solving a series of linear programming problems.•We give the complexity analysis of the algorithm for the first time.•The computing efficiency is significantly higher than the existing algorithms.
AbstractList In this paper, with the unique hypothesis that the denominator is not equal to 0, an efficient outer space rectangle branch-and-bound algorithm is presented to globally solve the sum of general affine ratios problem. By using equivalent transformation and the characteristics of general single ratio function, a linear program relaxation problem is constructed for computing the lower bound of the global minimum value of the original problem. Moreover, to enhance the running speed of the presented algorithm, we design an outer space accelerating technic for deleting the entire outer space rectangle or a part of the entire examined outer space rectangle, in which there contains no the global minimum point of the equivalent problem. Furthermore, through the complexity analysis of the presented algorithm, we estimate its maximum iteration times. In addition, we prove the global convergence of the presented algorithm, report and analyze the numerical computational results for indicating the validity of the presented algorithm. Finally, two practical problems from power transportation and production planning are solved to verify the usefulness of the presented algorithm. •We present a novel outer space branch-and-bound algorithm for the SGAR.•The algorithm economizes the required computations by dividing space.•The main calculation involves solving a series of linear programming problems.•We give the complexity analysis of the algorithm for the first time.•The computing efficiency is significantly higher than the existing algorithms.
ArticleNumber 112701
Author Jiao, Hongwei
Ma, Junqiao
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  organization: School of Mathematical Sciences, Henan Institute of Science and Technology, Xinxiang 453003, China
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Keywords 90C32
Branch-and-bound
Sum of general affine ratios
Complexity analysis
Global optimization
90C26
Accelerating technic
Language English
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Snippet In this paper, with the unique hypothesis that the denominator is not equal to 0, an efficient outer space rectangle branch-and-bound algorithm is presented to...
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StartPage 112701
SubjectTerms Accelerating technic
Branch-and-bound
Complexity analysis
Global optimization
Sum of general affine ratios
Title An efficient algorithm and complexity result for solving the sum of general affine ratios problem
URI https://dx.doi.org/10.1016/j.chaos.2022.112701
Volume 164
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