Ryen White is a Partner Researcher and Research Manager at Microsoft Research AI. In recent roles, he led the applied science organization for Cortana, served as chief scientist for Microsoft Health, and was a principal researcher at Microsoft Research. Ryen’s research has historically been focused on understanding search interaction and on developing tools to help people search more effectively. Ryen has published more than 200 conference papers and journal articles in Web search, log analysis, and user studies of search systems. He was identified as the “Center of the SIGIR Universe” (most central author in the co-authorship graph) in the 40 years of the ACM SIGIR conference. Ryen has received 19 best-paper awards in conferences, journals and elsewhere, including at SIGIR (2007, 2010, 2013), ACM CIKM (2014, 2015), ACM SIGCHI (2011), and in JASIST (2010). His doctoral research received the British Computer Society’s (BCS) Distinguished Dissertation Award for the best Computer Science Ph.D. dissertation in the United Kingdom in 2004/2005. In 2014, Ryen received the Microsoft BCS/BCS IRSG Karen Spärck Jones Award for contributions to Information Retrieval. His new book, entitled Interactions with Search Systems, was published in 2016 by Cambridge University Press and received the Association for Information Science and Technology’s (ASIS&T) Best Information Science Book Award in 2017.