Optimization, Learning Algorithms and Applications: 5th International Conference, OL2A 2025, Sesti Levante, Italy, April 28–30, 2025, Proceedings, Part II (Optimization, Learning Algorithms and Applications: 5th International Conference, OL2A 2025, Sesti Levante, Italy, April 28–30, 2025, Proceedings, Part II, 2026)