how to set the value of K with different points for other datasets

[longmalongma]

Hi,thanks for your great work, For each sampling point, search the nearest K points to build a local region. The question is how to set the value of K with different points for other datasets. Is there any standard for the value of K． looking forward to your reply.

[KuangenZhang]

Hi, thanks for your question. K is a super parameter and we cannot know the best value for different datasets. It may depend on the density of the point cloud. For Modelnet40, we usually set K to be 20 if the point cloud consists of 1024 points.