fill a grid of AER/perplexity results for czech

[wammar]

it should look something like:

                     3 x 10^2 sents           3 x 10^4 sents         3 x 10^6 sents

hmm-model

chris et al 2011

my implementaiton
of chris et al 2011

importance sampling
w/ local proposal
distribution

importance sampling
w/ hmm proposal
distribution

note: for each of those fields, you'll want to use a dev set to optimize the hyperparams