“Onion Curve: A Space Filling Curve with Near-Optimal Clustering” accepted to ICDE 2018 February 16, 2018 By snt “Onion Curve: A Space Filling Curve with Near-Optimal Clustering” by Pan Xu, Cuong Nguyen, and Srikanta Tirthapura accepted to IEEE ICDE (International Conference on Data Engineering) 2018.