%0 Journal Article %T Trip Purpose Imputation Using GPS Trajectories with Machine Learning %A Gao, Qinggang %A Molloy, Joseph %A Axhausen, Kay W. %J ISPRS International Journal of Geo-Information %V 10 %N 11 %@ 2220-9964 %D 2021-11-13 %I Multidisciplinary Digital Publishing Institute %~ DeepDyve