• Corpus ID: 214611977

Explore Aggressively, Update Conservatively: Stochastic Extragradient Methods with Variable Stepsize Scaling

  title={Explore Aggressively, Update Conservatively: Stochastic Extragradient Methods with Variable Stepsize Scaling},
  author={Yu-Guan Hsieh and Franck Iutzeler and J{\'e}r{\^o}me Malick and P. Mertikopoulos},
Owing to their stability and convergence speed, extragradient methods have become a staple for solving large-scale saddle-point problems in machine learning. The basic premise of these algorithms is the use of an extrapolation step before performing an update; thanks to this exploration step, extra-gradient methods overcome many of the non-convergence issues that plague gradient descent/ascent schemes. On the other hand, as we show in this paper, running vanilla extragradient with stochastic… 

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