Marcin Kosiński has a master degree in Mathematical Statistics and Data Analysis specialty. Challenges seeker and devoted R language enthusiast. In the past, keen on the field of large-scale online learning and various approaches to personalized news article recommendation. Community events co-organizer. Interested in R packages development and survival analysis models. Spent 4.5 years exploring and improving methods for quantitative marketing analyses and global surveys at Gradient Metrics. Currently working on recommendations systems at ProData Consult.