Multi-Entropy Feature Extraction With LSTM Networks for Acoustic Emission-Based Railway Crack Localization. - Popphon Laon; Supavee Pourbunthidkul; Praphaporn Rattan; Tanawit Sahavisit; Wara Suwansin; Pattharin Wichittrakarn; Pattarapong Phasukkit; Nongluck Houngkamhang (IEEE Access, 2026)