The IFCS 2019 conference theme is ‘Data Analysis and Rationality in a Complex World’. The conference opening will take place on August 26 late afternoon and pre-conference workshops will be held in the morning. The conference sessions will start on August 27 in the morning, and will close on August 29 with a full day conference program. The conference will include a President’s invited session and a Presidential address, invited presentations, invited and contributed sessions.