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- W2002097905 abstract "The minimum sum-of-squares clustering problem is considered. The mathematical modeling of this problem leads to a min-sum-min formulation which, in addition to its intrinsic bi-level nature, has the significant characteristic of being strongly nondifferentiable. To overcome these difficulties, the resolution, method proposed adopts a smoothing strategy using a special C∞ differentiable class function. The final solution is obtained by solving a sequence of low dimension differentiable unconstrained optimization subproblems which gradually approach the original problem. The use of this technique, called hyperbolic smoothing, allows the main difficulties presented by the original problem to be overcome. A simplified algorithm containing only the essentials of the method is presented. For the purpose of illustrating both the reliability and the efficiency of the method, a set of computational experiments was performed, making use of traditional test problems described in the literature" @default.
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- W2002097905 date "2010-03-01" @default.
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- W2002097905 title "The hyperbolic smoothing clustering method" @default.
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- W2002097905 doi "https://doi.org/10.1016/j.patcog.2009.06.018" @default.
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