@ {4406, title = {Face-based Passive Customer Identification Combined with Multimodal Context-aware Payment Authorization: Evaluation at Point of Sale}, booktitle = {Proceedings of the 20th International Conference on Enterprise Information Systems, ICEIS}, year = {2018}, pages = {555-566}, publisher = {SCITEPRESS}, isbn = {978-989-758-298-1}, doi = {10.5220/0006798105550566}, url = {http://www.scitepress.org/PublicationsDetail.aspx?ID=SY+yUHHWs1w\%3d\&t=1}, author = {A. W{\'o}jtowicz and Jacek Chmielewski}, editor = {Slimane Hammoudi and Michal Smialek and Olivier Camp and Joaquim Filipe} }