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Due to the lack of solar radiation measurement stations, prediction of solar radiation had a great interest in the recent years. In the present work, fourteen solar radiation models had been used to assess monthly mean global solar radiation on a horizontal surface. Since we observed that each model was adequate for some months of the year, one model can't be sufficient for the prediction of the whole...
Thresholding is a fundamental task and a challenge for many image analysis and pre-processing process. The fuzzy 2-partition entropy approach for threshold selection is one of the best image thresholding techniques. In this work, a new thresholding method for image segmentation using type-2 fuzzy 2-partition entropy is presented. Type-2 fuzzy sets represent fuzzy sets with fuzzy membership values...
The fuzzy c-partition entropy approach for threshold selection is one of the best image thresholding techniques, but its complexity increases with the number of thresholds. In this paper, the selection of thresholds (fuzzy parameters) was seen as an optimization problem and solved using particle swarm optimization (PSO) and differential evolution (DE) algorithms. The proposed fast approaches have...
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