Building the Spanish-to-English translator

I hope the previous sections left you with a good understanding of the model we are about to build. Now, we are going to get practical and write the code behind our translation system. We should end up with a trained network capable of predicting the English version of any sentence in Spanish. Let's dive into programming.

Preparing the data

The first step, as always, is to collect the needed data and prepare it for training. The more complicated our systems become, the more complex it is to massage the data and reform it into the right shape. We are going to use Spanish-to-English phrases from the OpenSubtitles free data source (http://opus.nlpl.eu/OpenSubtitles.php). We will...