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Abstract

Recently, Yager introduced several interesting information-theoretic measures of diversity related to the decision problem of selecting multiple objects from a pool of candidates lying in multiple categories. To give decision makers more choice, we introduce two more measures of diversity for the decisions in this note. One is based on the Simpson's diversity index extensively used in ecology, and the other is based on the Jain's fairness index proposed in network engineering community. © 2011 Wiley Periodicals, Inc.