| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | mtc-m16.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repositório | sid.inpe.br/marciana/2004/01.19.11.33 |
| Última Atualização | 2004:04.01.03.00.00 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/marciana/2004/01.19.11.33.26 |
| Última Atualização dos Metadados | 2018:06.05.01.20.50 (UTC) administrator |
| Chave Secundária | INPE-10542-PRE/6014 |
| ISBN/ISSN | ISBN 85-288-0040-7 |
| Chave de Citação | ChiwiacowskyCampPretStep:2003:PaAp |
| Título | Identifying initial condition in heat conduction transfer by a genetic algorithm: a parallel approach  |
| Ano | 2003 |
| Data de Acesso | 25 abr. 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 185 KiB |
| 2. Contextualização | |
| Autor | 1 Chiwiacowsky, L. D. 2 Campos Velho, Haroldo Fraga de 3 Preto, Airam Jônatas 4 Stephany, Stephan |
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JHC3 3 8JMKD3MGP5W/3C9JGGE 4 8JMKD3MGP5W/3C9JJ9D |
| Grupo | 1 LAC-INPE-MCT-BR |
| Nome do Evento | Iberian Latin-American Congress on Computational Methods in Engineering, 24 (CILAMCE). |
| Localização do Evento | Ouro Preto |
| Data | 29 - 31 Oct. 2003 |
| Título do Livro | Proceedings |
| Histórico (UTC) | 2018-06-05 01:20:50 :: administrator -> marciana :: 2003 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Palavras-Chave | parallel genetic algorithms inverse problems heat conduction |
| Resumo | A parallel implementation of a genetic algorithm is proposed to solve the one-dimensional inverse heat conduction problem of determining the initial temperature distribution from the transient temperature noisy profile at a given time, considering insulated boundary conditions. Genetic algorithms are efficient search methods based on natural and genetic selection of population being inherently parallel [1]. This ill-posed problem requires the use of a regularization technique [2]. The solution is given by the candidate function which minimizes the functional given by the square differences between the experimental and simulated temperatures at a given time, plus the regularization term weighted by a regularization parameter. Therefore, this inverse problem is formulated as an optimization problem, which is solved by a parallel implementation of a specifically developed genetic algorithm method. This proposed method is based on individuals with genotypes formed by a set of real numbers [3]. The parallel code was generated using calls to the message passing communication library MPI (Message Passing Interface) [4]. Usually, parallel genetic algorithms work with sub-populations (demes) which are placed on each processor and it was used the migration policy given by the island model [5], In such model, individuals are free to migrate to any other processor, subjected to specific rules. The inversions were accomplished for two different population sizes (336 and 1008), being the individuals equally distributed among the processors. Number of processors was 2 to 16, and processing times show efficiencies between 0.9 and 1.14 for the 1008 individuals and between 0.83 and 0.89 for 336 individuals. |
| Área | COMP |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Identifying initial condition... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/sid.inpe.br/marciana/2004/01.19.11.33 |
| URL dos dados zipados | http://urlib.net/zip/sid.inpe.br/marciana/2004/01.19.11.33 |
| Idioma | en |
| Arquivo Alvo | cil261-37.pdf |
| Grupo de Usuários | administrator |
| Visibilidade | shown |
| Detentor da Cópia | SID/SCD |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ESGTTP |
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.49.40 7 sid.inpe.br/mtc-m21/2012/07.13.14.39.30 5 |
| Acervo Hospedeiro | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notas | |
| Campos Vazios | affiliation archivingpolicy archivist callnumber copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition editor electronicmailaddress format identifier isbn issn label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |