Kostis is in analytics consulting 8 years with additional 8 years in academia and physics research. Most of his projects have been in customer & marketing analytics, data science and forecasting, retail analytics, recommendation engines etc. Kostis holds several academia and consulting global awards and most of his clients were US and European diamond clients in tech, insurance, utilities, automotive and energy. Kostis besides his PhD, holds an MBA from Sloan MIT where he was also a TA in statistics/advanced math for PhD students at MIT engineering.
In theory there is no difference between theory and practice. But, in practice, there is – Unknown