Video/Slides upload Title: Efficient Graph Hierarchical Decomposition with User Engagement and Tie Strength Authors: Maryam Ghafouri, Kai Wang, Fan Zhang, Ying Zhang and Xuemin Lin Paper ID: (Paper ID given by EasyChair/CMT. This number will be used for author verification.) Video file: Uploaded and private public access author access only Slide file: Uploaded and author access only public access author access only Submit