Yutong is a PhD Candidate at the Perception Team under the supervision of Radu Horaud and mysefl. Yutong has worked on variational Bayes approximations with applications to multiple object tracking.[Could not find the bibliography file(s) He investigated visual multiple-speaker tracking [?], and its audio-visual counter-part [?]. He also investigated how to take into account robot’s head movements when tracking [?]. Yutong devoted some time to make the tracking robust to room acoustics [?]. In addition, Yutong also spent time on audio-only multi speaker tracking [?].