The exact information-based complexity of smooth convex minimization

Autor: Drori, Yoel
Rok vydání: 2016
Předmět:
Druh dokumentu: Working Paper
Popis: We obtain a new lower bound on the information-based complexity of first-order minimization of smooth and convex functions. We show that the bound matches the worst-case performance of the recently introduced Optimized Gradient Method, thereby establishing that the bound is tight and can be realized by an efficient algorithm. The proof is based on a novel construction technique of smooth and convex functions.
Databáze: arXiv