The Genetic Algorithm Estimates for the Parameters of Order p Normal Distributions

نویسندگان

  • Salvatore Vitrano
  • Roberto Baragona
چکیده

Riassunto: Le distribuzioni normali di ordine p, anche note come distribuzioni esponenziali potenziate, costituiscono una naturale generalizzazione della distribuzione normale. La stima dei parametri presenta delle difficoltà non trascurabili sia per quanto riguarda la distorsione che la variabilità. Gli algoritmi genetici, sperimentati con successo in molte applicazioni dell’inferenza statistica, possono costituire in questo senso una valida alternativa nell’ambito dei metodi di stima proposti. Sono qui considerate la stima del parametro di locazione per piccoli campioni, e dell’ordine p per campioni di numerosità moderata. Un esperimento di simulazione illustra i risultati e i vantaggi che possono derivare dall’uso degli algoritmi genetici e permette un confronto con alcuni metodi precedentemente introdotti e largamente sperimentati.

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تاریخ انتشار 2001