Title
Backprop without Learning Rates Through Coin Betting.
Abstract
Deep learning methods achieve state-of-the-art performance in many application scenarios. Yet, these methods require a significant amount of hyperparameters tuning in order to achieve the best results. In particular, tuning the learning rates in the stochastic optimization process is still one of the main bottlenecks. In this paper, we propose a new stochastic gradient descent procedure for deep networks that does not require any learning rate setting. Contrary to previous methods, we do not adapt the learning rates nor we make use of the assumed curvature of the objective function. Instead, we reduce the optimization process to a game of betting on a coin and propose a learning rate free optimal algorithm for this scenario. Theoretical convergence is proven for convex and quasi-convex functions and empirical evidences show the advantage of our algorithm over popular stochastic gradient algorithms.
Year
Venue
Field
2017
neural information processing systems
Online machine learning,Artificial intelligence,Mathematics,Machine learning
DocType
Volume
Citations 
Journal
abs/1705.07795
1
PageRank 
References 
Authors
0.36
8
2
Name
Order
Citations
PageRank
Francesco Orabona188151.44
Tatiana Tommasi250229.31