U NIVERSITAT DE B ARCELONA F UNDAMENTALS OF DATA S CIENCE MASTER ’ S T HESIS Sentiment Analysis of student evaluation of teaching Author: Indra I KAUNIECE Supervisor: Venelin KOVACHEV Eloi PUERTAS Antonia MARTÍ A thesis submitted in partial fulfillment of the requirements for the degree of MSc in Fundamentals of Data Science in the Facultat de Matemàtiques i Informàtica July 1, 2018