Two-stage feature selection utilizing three-way adaptive neighborhood characteristic measure and optimal combination search

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Bowen Lin, Duoqian Miao, Caihui Liu, Hongyun Zhang, Ruizhi Wang, Witold Pedrycz

Published: 01 Mar 2026, Last Modified: 06 Nov 2025Expert Systems with ApplicationsEveryoneRevisionsCC BY-SA 4.0
Abstract: Highlights•We define a fitness function for SFS and construct an adaptive model.•The lower and upper approximations are redefined by using the fitness function.•The three-way adaptive characteristic regions and a hybrid measure are designed.•A feature selection approach is designed by the three-way hybrid measure.•An optimal feature subset search method is explored.