09e7121c046e0ad54aada522d3e1f967-Supplemental-Conference.pdf

Thegeneralideais: The training time tighter ELBO benefits the performance in terms of avoiding posterior collapse. But those are not the real problem ofsoftmin coding. While the bits-back coding is not applicable to lossy compression. Ifthebitrateincrease in logp( y)andlogp(x| y),the R-D cost just increases for lossy compression. Anditisquitefaraway from uniform distribution, which violates the assumption of Ballé et al. [2018].