Fuzzy Random Characterization of Pore Structure in Frozen Sandstone: Applying Improved Niche Genetic Algorithm

Table 1

Comparison of conversion coefficient inversion results.

Aperture type	Least squares method	Improved niche genetic algorithm
		Cmin	Cmax
Small aperture	31.95	24.37	40.62
Medium aperture	45.34	36.52	58.71
Large aperture	62.07	48.19	76.35