This partnership between the telecom provider Digicel Haiti and researchers at Karolinska Institutet, Sweden, and Columbia University tried to improve aid delivery to improve humanitarian efforts delivery in Haiti following the 2010 cholera outbreak. Using anonymized data from two million mobile phones, the participants monitored population movements from 2 days before the 2010 earthquake until 158 days afterwards. Patterns from these movements informed aid delivery. Information on the project was published in PLOS Medicine.