Abstract-- The aim of this paper is to present an axiomatization of a generalization of Shannon's entropy starting from partitions of finite sets. The proposed axiomatization yields as special cases the Havrda-Charvat entropy, and thus, provides axiomatizations for the Shannon entropy, the Gini index, and for other types of entropy used in classification and data mining. Keywords-- Shannon entropy, Gini index, Havrda-Charvat entropy, non-Shannon entropy.
Dan A. Simovici, Szymon Jaroszewicz