Helena Mendrisova

Helena Mendrisova is an accomplished data scientist with extensive experience in data fusion and marketing effectiveness. Since July 2007, Helena has held various positions at Nielsen, including Principal Data Scientist, Manager of Marketing Effectiveness, and Lead Data Scientist, where responsibilities have included developing applications of data fusion for integrated consumer media behavior and advancing digital audio measurement methodologies. Prior to Nielsen, Helena worked as a Statistician at Merkle, focusing on logistic regression models for direct marketing campaigns, and served as a Teaching Assistant at The Ohio State University, where mathematical concepts were taught to diverse students. Helena's career began at the Slovak Hydro-Meteorological Institute, contributing to weather prediction models. Educational qualifications include a Master's in Applied Statistics from The Ohio State University and a Bachelor of Science in Mathematical Physics from Comenius University in Bratislava, Slovakia.