Rundong Wang Xu He Runsheng Yu Wei Qiu 0001 Bo An 0001 Zinovi Rabinovich Learning Efficient Multi-agent Communication: An Information Bottleneck Approach. 9908-9918 2020 ICML http://proceedings.mlr.press/v119/wang20i.html conf/icml/2020 db/conf/icml/icml2020.html#WangHYQ0R20