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Construction of centroidal Voronoi tessellations using a conjugate gradient method based on trust regions

Posted on:2011-05-22Degree:M.AType:Thesis
University:University of South CarolinaCandidate:Liu, JingFull Text:PDF
GTID:2440390002964803Subject:Applied Mathematics
Abstract/Summary:
A Voronoi tessellation whose generating points coincide with the centroids (mass centers) of the corresponding Voronoi regions is called a centroidal Voronoi tessellation (CVT). Due to the natural optimization properties enjoyed by CVTs, they have diverse applications in many areas of science and engineering. In this paper, we present a new algorithm for computing CVTs---the conjugate gradient method based on trust regions (CGTR). This algorithm significantly speeds up the computation of CVTs. Numerical experiments are also conducted to substantiate theoretical analysis.
Keywords/Search Tags:Voronoi
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