This year I am also serving as a reviewer for the AAAI conference, which will take place in February in New-York. See the official website for more details https://aaai.org/Conferences/AAAI-20/#.
I was at the ICCOPT conference in Berlin from 5 to 8 August as the chair of 3 sessions: 2 on variational inequality/minimax/GANs and 1 on non-smooth optimization.