Mr. Alex Chen is the Chief Scientist of Quark Finance. He has experience in management consulting, credit card, online payment and consolidated financial services. Mr. Chen is expert at solving business problems using modeling and optimization technology. He has various domain knowledge of data mining, including decision tree, regression, neural network, SVM, random forest, SVD, collaborative filtering and factor analysis. Mr. Chen has successful experience of applying such technologies to credit risk, fraud detection, pattern recognition, precision marketing, cross-selling, recommendation system, and more.