  The Data for Refugees (D4R) Challenge is a non-profit challenge initiated to
improve the conditions of the Syrian refugees in Turkey by providing a special
database to scientific community for enabling research on urgent problems
concerning refugees, including health, education, unemployment, safety, and
social integration. The collected database is based on anonymised mobile Call
Detail Record (CDR) of phone calls and SMS messages from one million Turk
Telekom customers. It indicates broad activity and mobility patterns of
refugees and citizens in Turkey for one year. The data collection period is
from 1 January 2017 to 31 December 2017. The project is initiated by Turk
Telekom, in partnership with the Turkish Academic and Research Council
(TUBITAK) and Bogazici University, and in collaboration with several academic
and non-governmental organizations, including UNHCR Turkey, UNICEF, and
International Organization for Migration.
