Gartner Predicts Fifty Percent of Citizens in Large Cities Will Share Personal Data With Smart City Programs by 2019 Twenty Percent of All Local Government Organizations Will Generate Revenue Through Open Data by 2020 Analysts Will Discuss How to Generate Value From Data at the Gartner Data & Analytics Summits, February 20-21 in Sydney, March 6-9 in Grapevine, Texas, March 20-22 in London, March 2