Optimizing Echo-State Networks for Unemployment Forecasting Using a Modified Metaheuristic. - Aleksandar Petrovic; Luka Jovanovic; Tamara Zivkovic; Miodrag Zivkovic; Branislav Radomirovic; Vico Zeljkovic; Mirjana Tomic; Nebojsa Bacanin (ICIST, 2025)