Comment by domoritz

Author of this paper here. Cool to see this show up on HN. Little story about this paper: Danyel and I did this while I was on an internship at Microsoft Research. The algorithm was too simple to get it published at a conference, but the technique has been adopted in a few places now, including other papers. We did some follow-up work to more efficiently compute the density and also support interactive filtering. See https://www.domoritz.de/papers/2021-KDBox-VIS.pdf.