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Elizabeth Frances Churchill is a British American psychologist specializing in human-computer interaction (HCI) and social computing. She is the Executive Vice President of ACM SIGCHI and is a Principal Research Scientist at Yahoo.

Background
Churchill was born Calcutta, India and moved to Newcastle in her early childhood. She gained a B.Sc. in Experimental Psychology and a M.S. in Knowledge Based Systems from Sussex University in the United Kingdom where she worked on Soar simulations. After completing a Ph.D. (1988) she joined University_of_Nottingham as a Postdoc. In 1997, she moved to California, United States to join FXPAL where she formed and lead their Social Computing Group. In 2004, Churchill joined Palo Alto Research Center (PARC). She joined Yahoo in 2006 as a Principal Research Scientist where she formed and lead the Internet Experiences Group in the Microeconomics and Social Systems division of Yahoo! Labs. Her group and research is multidisciplinary, addressing the intersection of computer science, cognitive and social psychology, design science, neuroscience, analytics, and anthropology. In 2009, she was elected as the Executive Vice President of ACM SIGCHI on a joint ballot with Gerrit van der Veer, SIGCHI's president.

Research and Academic Work
Churchill is known for her work on Embodied Conversational Agents and co-edited book of the same name, an area of HCI which uses computer generated embodied agents together with a model of gesture and facial expression to enable face-to-face speech communication with people. She is also known for her work on public displays and installations.

In 2011, she co-edited the first journal on Feminism and HCI with Shaowen Bardzell at Indiana University Bloomington.

Academic Work
Churchill has chaired and run the technical program in several top conferences and publishes regularly in top-tier academic journals and conferences in computer science, human-computer interaction, sociology, and related fields. Her work has appeared in various newspapers and magazines around the world including Scientific American and SFGate.