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Adnan Salman, Allen D. Malony, Sergei Turovets, Don M. Tucker: Use of Parallel Simulated Annealing for Computational Modeling of Human Head Conductivity. International Conference on Computational Science (1) 2007: 86-93


We present a parallel computational environment used to determine conductivity properties of human head tissues when the effects of skull inhomogeneities are modeled. The environment employs a parallel simulated annealing algorithm to overcome poor convergence rates of the simplex method for larger numbers of head tissues required for accurate modeling of electromagnetic dynamics of brain function. To properly account for skull inhomogeneities, parcellation of skull parts is necessary. The multi-level parallel simulated annealing algorithm is described and performance results presented. Significant improvements in both convergence rate and speedup are achieved. The simulated annealing algorithm was successful in extracting conductivity values for up to thirteen head tissues without showing computational deficiency.


Created: Wed Mar 15 10:52:52 2017

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