Introduction

Natural language processing (NLP) is all over the news lately, and if you ask five different people, you will get ten different definitions. Recently NLP has been used to help identify bots or trolls on the internet trying to spread fake news or, even worse, tactics such as cyberbullying. In fact, recently there was a case in Spain where a student at a school was getting cyberbullied through social media accounts and it was having such a serious effect on the health of the student that the teachers started to get involved. The school reached out to researchers who were able to help identify several potential sources for the trolls using NLP methods such as TF-IDF. Ultimately, the list of potential students was presented to the school and when confronted the actual suspect admitted to being the perpetrator. The story was published in a paper titled Supervised Machine Learning for the Detection of Troll Profiles in Twitter Social Network: Application to a Real Case of Cyberbullying...