Until recently, I founded and led the Data Science team at Facebook, which is responsible for applied research, product optimization and user behavioral modeling within the company. In addition, we study a range of theoretical and methodological topics around large scale social dynamics including incentives for online participation, the growth and evolution of social networks, media diffusion and interpersonal influence.
I received my Ph.D. at the MIT Media Laboratory on the topic of media contagion and weblogs. You might also be familiar with my project Blogdex which tracks (used to track?) diffusion in the weblog community. The results of this work and the MIT Weblog Survey can be found in my Ph.D. Thesis.
After finishing my Ph.D. I joined Yahoo Research where I studied social incentives, community evolution and social search in emerging applications such as Flickr, del.icio.us, and Last.fm.