TED talk recommender

In this exercise, we will build a recommendation system that suggests TED Talks based on their transcripts. You have been given a get_recommendations() function that takes in the title of a talk, a similarity matrix and an indices series as its arguments, and outputs a list of most similar talks. indices has already been provided to you.

You have also been given a transcripts series that contains the transcripts of around 500 TED talks. Your task is to generate a cosine similarity matrix for the tf-idf vectors of the talk transcripts.

Consequently, we will generate recommendations for a talk titled '5 ways to kill your dreams' by Brazilian entrepreneur Bel Pesce.

Initialize a TfidfVectorizer with English stopwords. Name it tfidf.
Construct tfidf_matrix by fitting and transforming transcripts.
Generate the cosine similarity matrix cosine_sim using tfidf_matrix.
Use get_recommendations() to generate recommendations for '5 ways to kill your dreams'.

Take Hint (-30 XP)

Exercise

TED talk recommender

Instructions