After the discussion of cross-lingual embedding models, we will additionally look into how to incorporate visual information into word representations, discuss the challenges that still remain in learning cross-lingual representations, and finally summarize which models perform best and how to evaluate them. Monolingual mapping Methods that employ monolingual mapping train monolingual word represe
![A survey of cross-lingual word embedding models](https://cdn-ak-scissors.b.st-hatena.com/image/square/48dc595b20918ddfe009851ab04dd4b8974f03ec/height=288;version=1;width=512/https%3A%2F%2Fwww.ruder.io%2Fcontent%2Fimages%2F2016%2F10%2Fzou_et_al_2013.png)