p(x|z) + log p(z) − log q(z|x)] = Ez∼q(z|x),ϵ=f−1(z) [ log p(x|f(ϵ)) + log u(ϵ) + log det dϵ dz − log q(z|x) ] = Ez∼q(z|x),ϵ=f−1(z) log p(x|f(ϵ)) + log u(ϵ) − ( log q(z|x) − log det dϵ dz ) IAF posterior Masaki Kozuki Variational Lossy Autoencoder 2017/6/17 20 / 30