The Language of Tears (2018) Xu made a tear machine that pushes out small amounts of liquid (tears) based on the facial expressions in “I dreamed a dream” from “Les Miserables”. The main technique that she used was Machine Learning. Based on her own “normal” or “cry” labeled images, if the current frame of the actress’ facial expression in the video is classified as “cry”, it will trigger the dummy head drops water which can be seen as crying.
