William Darling is an Applied Scientist working in Microsoft's AI and Research team. He received an H.B.Sc. in Physics and Computer Science from Trent University in 2004, and LL.B. and B.C.L. degrees from McGill University in 2007. After being called to the bar of the Law Society of Upper Canada and working in intellectual property law in Toronto, he returned to academia and completed a Ph.D. focused on Machine Learning and Topic Modeling from the University of Guelph in 2012. He is currently working on the AI Platform Team for Bing with a focus on deep recurrent neural network models and the Microsoft Cognitive Toolkit. He has published and commercialized technology in the areas of NLP, machine learning, and information retrieval.