Researcher’s at MIT’s Media Lab have launched a new project called Pantheon, in which they attempt to quantify the cultural impact of people throughout time. Using data from Wikipedia, they’ve developed a Historical Popularity Index (HPI) to rank more than 11,000 famous names from the past and present. HPI is based on a number of things, including the number of languages in which one’s Wikipedia bio exists and the number and distribution of page views to those bio pages. While famous techies still generally score much lower HPIs than actors, athletes and artists, 34 computer scientists did make the list. Here are the 15 most well-known computer scientists in history, based on their HPI scores.