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ITGO: Invasive tumor growth optimization algorithm
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DOI：10.1016/j.asoc.2015.07.045.png)
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Abstract
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This paper proposes a new optimization algorithm named ITGO (Invasive Tumor Growth Optimization) algorithm based on the principle of invasive tumor growth. The study of tumor growth mechanism shows that each cell of tumor strives for the nutrient in their microenvironment to grow and proliferate. In ITGO algorithm, tumor cells were divided into three categories: proliferative cells, quiescent cells and dying cells. The cell movement relies on the chemotaxis, random walk of motion and interaction with other cells in different categories. Invasive behaviors of proliferative cells and quiescent cells are simulated by levy flight and dying cells are simulated through interaction with proliferative cells and quiescent cells. In order to test the effectiveness of ITGO algorithm, 50 functions from CEC2005, CEC2008, CEC2010 and a support vector machine (SVM) parameter optimization problem were used to compare ITGO with other well-known heuristic optimization methods. Statistical analysis using Friedman test and Wilcoxon signed-rank statistical test with Bonferroni-Holm correction demonstrates that the ITGO algorithm is better in solving global optimization problems in comparison to the other meta-heuristic algorithms. (C) 2015 Elsevier B.V. All rights reserved.
Keywords:
Invasive tumor growth
Meta-heuristic algorithm
Levy flight
Swarm intelligence
Evolutionary computation
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