Dave Lewis, Ph.D. is Executive Vice President for AI Research, Development, and Ethics at Reveal. He has variously in his career been a corporate researcher, startup development team leader, research professor, freelance consultant, expert witness, and software company co-founder. In 2006, he was elected a Fellow of the American Association for Advancement of Science for foundational work in text analytics. In 2017 he received an ACM SIGIR Test of Time Award for his paper with Gale introducing uncertainty sampling.