the tight space constraint, we have done our best to address a majority of each reviewer's questions / comments

We thank all the reviewers for their diligence, appreciation of our work, and valuable comments / suggestions. ACM TOG 2019.) that similarly go from lower to higher number of parameters, progressively. "Unsupervised visual representation learning by context prediction", ICCV 2015, which proposed a SSL task The text suggests..) Y es, this is a typo that distorts the meaning. The blue box in Figure 1 just maps the point's indices to balls they are part of, to further compute the ball vectors. An ablation study can certainly be added.