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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Verifying compliance with ballast water standards: a decision-theoretic approach

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Author(s):
Costa, Eliardo G. [1] ; Paulino, Carlos Daniel [2, 3] ; Singer, Julio M. [4]
Total Authors: 3
Affiliation:
[1] Univ Fed Rio Grande do Norte, Dept Estat, Natal, RN - Brazil
[2] Univ Lisbon, Dept Matemat, IST, Lisbon - Portugal
[3] Univ Lisbon, CEAUL, FCUL, Lisbon - Portugal
[4] Univ Sao Paulo, Dept Estat, Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: SORT-Statistics and Operations Research Transactions; v. 45, n. 1, p. 19-31, JAN-JUN 2021.
Web of Science Citations: 0
Abstract

We construct credible intervals to estimate the mean organism (zooplankton and phytoplankton) concentration in ballast water via a decision-theoretic approach. To obtain the required optimal sample size, we use a total cost minimization criterion defined as the sum of the sampling cost and the Bayes risk either under a Poisson or a negative binomial model for organism counts, both with a gamma prior distribution. Such credible intervals may be employed to verify whether the ballast water discharged from a ship is in compliance with international standards. We also conduct a simulation study to evaluate the credible interval lengths associated with the proposed optimal sample sizes. (AU)

FAPESP's process: 13/21728-2 - The use of modern autopsy techniques to investigate human diseases (MODAU)
Grantee:Paulo Hilário Nascimento Saldiva
Support type: Research Projects - Thematic Grants