报告题目 (Title)：CP3: Channel Pruning Plug-in for Point-based Networks（基于点的网络通道修剪）

报告人 (Speaker)： 沈超敏 副教授（华东师范大学）

报告时间 (Time)：2023年11月2日(周四) 8:30

报告地点 (Place)：校本部 F420

邀请人(Inviter)：温智婕

主办部门：理学院数学系

报告摘要： In this talk, we propose a model called CP3, which is a Channel Pruning Plug-in for Point-based network. CP3 is elaborately designed to leverage the characteristics of point clouds and PNNs in order to enable 2D channel pruning methods for PNNs. Specifically, it presents a coordinate-enhanced channel importance metric to reflect the correlation between dimensional information and individual channel features, and it recycles the discarded points in PNN’s sampling process and reconsiders their potentially-exclusive information to enhance the robustness of channel pruning. Experiments on various PNN architectures show that CP3 constantly improves state-of-the-art 2D CNN pruning approaches on different point cloud tasks.