Improving official statistics in emerging markets using machine learning and mobile phone data Eaman Jahani, Pål Sundsøy, Johannes Bjelland, Linus Bengtsson, Alex ‘Sandy’ Pentland and Yves-Alexandre de Montjoye EPJ Data Sci., 6 1 (2017) 3 Published online: 16 May 2017 DOI: 10.1140/epjds/s13688-017-0099-3