Use ML/statistics to predict clicks, also focus on realtime user feature, long term/short term user profiling in recommendation system and ad system. In my spare time I am an amateur algorithmatic trader.
1 How to stabilize features over time? Dec 20 '12
1 The expressive power of PoE over MoE Jan 21 '13
1 How to handle data imbalance in classification? Dec 20 '12
1 Bayes Estimation on Dirichlet distribution Dec 25 '12