References#
Herbert Edelsbrunner, David Kirkpatrick, and Raimund Seidel. On the shape of a set of points in the plane. IEEE Transactions on Information Theory, 29(4):551–559, 1983. doi:10.1109/TIT.1983.1056714.
Herbert Edelsbrunner and Ernst P. Mücke. Three-dimensional alpha shapes. ACM Transactions on Graphics, 13(1):43–72, 1994. doi:10.1145/174462.156635.
Martin Ester, Hans-Peter Kriegel, Jörg Sander, and Xiaowei Xu. A density-based algorithm for discovering clusters in large spatial databases with noise. In Proceedings of the Second International Conference on Knowledge Discovery and Data Mining (KDD), 226–231. 1996.
Ville Satopaa, Jeannie Albrecht, David Irwin, and Barath Raghavan. Finding a “kneedle” in a haystack: detecting knee points in system behavior. In 31st International Conference on Distributed Computing Systems Workshops, 166–171. 2011. doi:10.1109/ICDCSW.2011.20.