Meet The Principals

William Russ
William (Will) Russ is a Computational Market Researcher and Lead Programmer for The Institute for Perception. Will has a BS in Applied Mathematics and frequently works on internet surveys for product development, marketing, and regulatory compliance. His research interests include optimization, machine learning, graph theory, and numerical analysis. Will has taught principles of data science and machine learning with applications to sensory and consumer science, including consumer surveys.

Dr. Daniel M. Ennis
Dr. Daniel M. Ennis is the President of The Institute for Perception. He has more than 35 years of experience working on product testing theory and applications for consumer products. He has doctorates in food science (PhD) and also in mathematical & statistical psychology (DSc). This year the National University of Ireland, of which University College Dublin, his alma mater, is a constituent college, awarded him a DSc based on published work for his development of the Thurstonian framework for the Behavioral Sciences. He is also a Professional Statistician accredited by the American Statistical Association. He has published extensively on mathematical models for human decision-making and was the first to show that humans possess a transducer in the chemical senses. In 2001, he solved the degeneracy problem in multidimensional unfolding. Danny is a recipient of the Sensory and Consumer Sciences Achievement Award from IFT and also the ASTM David R. Peryam Award in recognition of “outstanding contributions to the field of basic and applied sensory science.” Danny consults globally and has served as an expert witness in a wide variety of advertising cases.