# Burr Settles, Ph.D.

Director of Research. Machine learning, music, & mischief. Natural language processing & learning science. He/him/yinz/y'all.

## Articles

### [„Hallo, Duo hier“: Hinter den Kulissen der KI von Duolingo](https://blog.duolingo.com/hallo-duo-hier-hinter-den-kulissen-der-ki-von-duolingo/)
  
Jul 28  
*By Kevin Yancey*

### [“Oi, é o Duo!”: Conheça a inteligência artificial por trás do meme](https://blog.duolingo.com/oi-e-o-duo-inteligencia-artificial-por-tras-do-meme/)
  
Jul 28  
*By Kevin Yancey*

### [“Hi, it’s Duo”: Meet the AI behind the meme](https://blog.duolingo.com/hi-its-duo-the-ai-behind-the-meme/)
  
Sep 3  
*By Kevin Yancey*

### [How we learn how you learn](https://blog.duolingo.com/how-we-learn-how-you-learn/)
  
Dec 14  
*By Burr Settles, Ph.D.*

### [Duolingo English Test, Africa, IELTS, and CEFR](https://blog.duolingo.com/duolingo-english-test-africa-ielts-and-cefr/)
  
Aug 14  
*By Burr Settles, Ph.D.*