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Cumulative information generating function and generalized Gini functions

Author

Listed:
  • Marco Capaldo

    (Università degli Studi di Salerno)

  • Antonio Di Crescenzo

    (Università degli Studi di Salerno)

  • Alessandra Meoli

    (Università degli Studi di Salerno)

Abstract

We introduce and study the cumulative information generating function, which provides a unifying mathematical tool suitable to deal with classical and fractional entropies based on the cumulative distribution function and on the survival function. Specifically, after establishing its main properties and some bounds, we show that it is a variability measure itself that extends the Gini mean semi-difference. We also provide (i) an extension of such a measure, based on distortion functions, and (ii) a weighted version based on a mixture distribution. Furthermore, we explore some connections with the reliability of k-out-of-n systems and with stress–strength models for multi-component systems. Also, we address the problem of extending the cumulative information generating function to higher dimensions.

Suggested Citation

  • Marco Capaldo & Antonio Di Crescenzo & Alessandra Meoli, 2024. "Cumulative information generating function and generalized Gini functions," Metrika: International Journal for Theoretical and Applied Statistics, Springer, vol. 87(7), pages 775-803, October.
    • Handle: RePEc:spr:metrik:v:87:y:2024:i:7:d:10.1007_s00184-023-00931-3
    DOI: 10.1007/s00184-023-00931-3
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    References listed on IDEAS

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    1. Capaldo, Marco & Navarro, Jorge, 2025. "New multivariate Gini’s indices," Journal of Multivariate Analysis, Elsevier, vol. 206(C).

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