@article {IOPORT.50293574,
    author       = {Cao, Xin and Cong, Gao and Jensen, Christian S.},
    title        = {Mining significant semantic locations from GPS data},
    year         = {2010},
    journal      = {PVLDB},
    volume       = {3},
    number       = {1},
    pages        = {1009-1020},
    identifier   = {50293574},
}