The Journey Matters: Average Parameter Count over Pre-training Unifies Sparse and Dense Scaling Laws - Jin, Tian; Humayun, Ahmed Imtiaz; Evci, Utku; Subramanian, Suvinay; Yazdanbakhsh, Amir; Alistarh, Dan; Dziugaite, Gintare Karolina (International Conference on Learning Representations, 2025)