Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

A Bayesian binary algorithm for root mean squared-based acoustic signal segmentation

Texto completo
Autor(es):
Hubert, Paulo [1, 2] ; Killick, Rebecca [3] ; Chung, Alexandra [4] ; Padovese, Linilson R. [4]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Mech Engn, Escola Politecn, Sao Paulo, SP - Brazil
[2] Technol & Data Sci Dept, John F Kennedy Bldg, Ave Nove de Julho 2029, BR-01313902 Sao Paulo, SP - Brazil
[3] Univ Lancaster, Math & Stat Dept, Fylde Ave, Lancaster LA1 4YW - England
[4] Univ Sao Paulo, Mech Engn Dept, Escola Politecn, Ave Prof Mello Moraes 2231, BR-05508030 Sao Paulo, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA; v. 146, n. 3, p. 1799-1807, SEP 2019.
Citações Web of Science: 0
Resumo

Changepoint analysis (also known as segmentation analysis) aims to analyze an ordered, one-dimensional vector in order to find locations where some characteristic of the data changes. Many models and algorithms have been studied under this theme, including models for changes in mean and/or variance, changes in linear regression parameters, etc. This work is interested in an algorithm for the segmentation of long duration acoustic signals; the segmentation is based on the change of the root-mean-square power of the signal. It investigates a Bayesian model with two possible parameterizations and proposes a binary algorithm in two versions using non-informative or informative priors. These algorithms are tested in the segmentation of annotated acoustic signals from the Alcatrazes marine preservation park in Brazil. (AU)

Processo FAPESP: 14/50279-4 - Brasil Research Centre for Gas Innovation
Beneficiário:Julio Romano Meneghini
Linha de fomento: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia
Processo FAPESP: 16/02175-0 - Paisagens acústicas submarinas no Litoral de São Paulo
Beneficiário:Linilson Rodrigues Padovese
Linha de fomento: Auxílio à Pesquisa - Regular