Ace-of-Spades: Accelerating Spatially Sparse Convolution for 3D Scene Understanding. - Om Ji Omer; Prashant Laddha; Gurpreet Singh Kalsi; Kamlesh R. Pillai; Anirud Thyagharajan; Ahimanyu Kulkarni; Anbang Yao; Yurong Chen 001; Sreenivas Subramoney (ACM Trans. Embed. Comput. Syst., 2026)