@INPROCEEDINGS {15783,
author={L. Matias and R. Fernandes and J.G. Gama and M.  Ferreira and JMM João Mendes-Moreira and L.D. Damas},
doi={0},
booktitle={International Joint Conference on Artificial Intelligence - IJCAI},
title={On Recommending Urban Hotspots to Find Our Next Passenger},
year={2013},
month={August},
volume={1},
pages={17-23} 
}