… along several attributes, including gender, age, and location. We perform text classification to identify the latent demographic attributes of authors, viewing each author as a set of … the user's social media postings. These features include the sets of words and characters used in a tweet's text, as well as the user's self-description, screen name, time zone, posting times, … along several attributes, including gender, age, and location. We perform text classification to identify the latent demographic attributes of authors, viewing each author as a set of …