Using AI to classify a book

We are going to work on a specific sub-task of NLP called text classification, this is the process of recognizing a pattern in a text and assign it a label. Examples that are used in your day to day life without you even noticing it include spam detection (in your mailbox), sentiment analysis (when you review a product or leave a comment) and tagging customer queries (when you fill in a contact form on a website). What we will try to do is to classify science-fiction books into different subgenres (dystopia, cyberpunk, space opera, …) based on their plot. In the end, we want a model that is able to take a book plot as an input and output the subgenres detected in the text and the confidence of the model that a subgenre is detected. The demonstrator can take up to 1 minute to open because I use a free version of Heroku to host my app, thus it goes to sleep when nobody uses it and it's better for the planet! This kind of algorithms could help an online market place to classify the books they receive to make more performant recommendations or a librarian to organize originally the books by subgenres instead of alphabetically, to create an experience in the library. Data is one of the most important (if not the most important) thing in data science.