I majored in Probability theory, and focused on Markov Chain related problems. After graduation, I worked at ASUS on Zenfone camera algorithm development for 2 years. Then focus on self-learning platform "Coursera". I completed the series of class "Advanced Machine Learning". Now, I am a data scientist in KKday. The main projects are listed below : * Consultant for Marketing Department : already analysis over 20 topics for optimizing allocation of advertising expense. * Personalized city recommend on KKday homepage for increasing click rate over 1%. * Decreasing fraudulent for risk controlling department.