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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
02/03/2010 |
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Data da última atualização: |
08/07/2010 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
BIONDI NETO, L.; MELLO, J. C. C. B. S. de; MEZA, L. A.; GOMES, E. G. |
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Afiliação: |
LUIZ BIONDI NETO, UNIVERSIDADE ESTADUAL DO RIO DE JANEIRO; JOÃO CARLOS C. B. SOARES DE MELLO, UNIVERSIDADE FEDERAL FLUMINENSE; LIDIA ANGULO MEZA, UNIVERSIDADE FEDERAL FLUMINENSE; ELIANE GONCALVES GOMES, SGE. |
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Título: |
A geometrical approach for fuzzy DEA frontiers. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
IN: SIMPÓSIO BRASILEIRO DE PESQUISA OPERACIONAL, 41., 2009, Porto Seguro. |
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Idioma: |
Inglês |
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Conteúdo: |
Interval DEA frontiers are here used in situation where one input or output is subject to uncertainty in its measurement and is presented as an interval data. We built an efficient frontier without any assumption about the probability distribution function of the imprecise variable. We take into account only the minimum and the maximum values of each imprecise variable. Two frontiers are constructed: the optimistic and the pessimistic ones. We use fuzszy relationships to introduce a new efficiency index based on a set of some Fuzzy T Norms. We will explore only the case where only on single variable presents a certain degree of uncertainty. |
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Palavras-Chave: |
Data envelopment analysis; Fuzzy sets; Interval data. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/17636/1/a-geometrical-apprach-for-fuzzy.pdf
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Marc: |
LEADER 01200nam a2200181 a 4500
001 1659429
005 2010-07-08
008 2009 bl uuuu u00u1 u #d
100 1 $aBIONDI NETO, L.
245 $aA geometrical approach for fuzzy DEA frontiers.$h[electronic resource]
260 $aIN: SIMPÓSIO BRASILEIRO DE PESQUISA OPERACIONAL, 41., 2009, Porto Seguro.$c2009
520 $aInterval DEA frontiers are here used in situation where one input or output is subject to uncertainty in its measurement and is presented as an interval data. We built an efficient frontier without any assumption about the probability distribution function of the imprecise variable. We take into account only the minimum and the maximum values of each imprecise variable. Two frontiers are constructed: the optimistic and the pessimistic ones. We use fuzszy relationships to introduce a new efficiency index based on a set of some Fuzzy T Norms. We will explore only the case where only on single variable presents a certain degree of uncertainty.
653 $aData envelopment analysis
653 $aFuzzy sets
653 $aInterval data
700 1 $aMELLO, J. C. C. B. S. de
700 1 $aMEZA, L. A.
700 1 $aGOMES, E. G.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
30/10/2008 |
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Data da última atualização: |
12/06/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOUZA, G. B. de; NOGUEIRA, A. R. de A.; PICCHI, C. M. C.; GUIMARÃES, E. S.; BARIONI JUNIOR, W. |
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Afiliação: |
GILBERTO BATISTA DE SOUZA, CPPSE; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; CRISTINA MARIA CIRINO PICCHI, CPPSE. |
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Título: |
Management of a prociciency testinf for animal nutrition laboratories. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: WORKSHOP PROFICIENCY TESTING IN ANALYTICAL CHEMESTRY, MICROBIOLOGY AND LABORATORY MEDICINE 6., 2008, Rome. Current practice and future directions - abstracts. Rome: IISTISAN, 2008. |
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Páginas: |
p. 37. |
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Idioma: |
Inglês |
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Conteúdo: |
An interlaboratory program has been conducted for the comparison of results provided by laboratories that perform feed analyses of animal nutrition carried out by the Embrapa Cattle-Southeasta, Brazilian Agricultural ResearchO rganization. The program structure and normalizationa re accomplishedi n accordancew ith the ABNT ISO/IEC GUIA 43 roles and with the harmonized international protocol of proficiency assays in analytical laboratories. AlI steps, from data acquisition to furnished the results, are controlled by a website, by using a dedicate program especially developed to bank of data controlo Nowadays, 44 laboratories,p rovided from Universities, govemmentalr esearchc enters, and private companies, representing alI the Brazilian regions, have been participating of the programo The essays foreseen by the program are the normally carried out by animal nutrition laboratories in animal feeds and mineral supplements, such as determination of dry matter, in vitro digestibility, neutral detergent fiber, acid detergent fiber, crode protein, ether extract, lignin, ash and macro- and micronutrients (Ca, P, Mg, K, S, Cu, Fe, Mn, Zn, and Na). Four turns of the program is yearly performed, each two months, and each parcel is composed by three different kinds of animal feed and mineral supplements. The statistical project employed to evaluate the laboratories scores is based on the roles recommended by the ABNT ISO/IEC GUIA 43-1, and the score z is adopted. For the values designatese valuation, median and robust standardd eviation, the consensusv alues based on the results provided by the participants are considered. Another proposition is to prepare and validate non certified reference materiaIs that could be used as internal quality control by the participants of the programo This work presents the experience in coordinatingt he intercomparison exercise. MenosAn interlaboratory program has been conducted for the comparison of results provided by laboratories that perform feed analyses of animal nutrition carried out by the Embrapa Cattle-Southeasta, Brazilian Agricultural ResearchO rganization. The program structure and normalizationa re accomplishedi n accordancew ith the ABNT ISO/IEC GUIA 43 roles and with the harmonized international protocol of proficiency assays in analytical laboratories. AlI steps, from data acquisition to furnished the results, are controlled by a website, by using a dedicate program especially developed to bank of data controlo Nowadays, 44 laboratories,p rovided from Universities, govemmentalr esearchc enters, and private companies, representing alI the Brazilian regions, have been participating of the programo The essays foreseen by the program are the normally carried out by animal nutrition laboratories in animal feeds and mineral supplements, such as determination of dry matter, in vitro digestibility, neutral detergent fiber, acid detergent fiber, crode protein, ether extract, lignin, ash and macro- and micronutrients (Ca, P, Mg, K, S, Cu, Fe, Mn, Zn, and Na). Four turns of the program is yearly performed, each two months, and each parcel is composed by three different kinds of animal feed and mineral supplements. The statistical project employed to evaluate the laboratories scores is based on the roles recommended by the ABNT ISO/IEC GUIA 43-1, and the score z is adopted. For the values designates... Mostrar Tudo |
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Palavras-Chave: |
Proficienct testing. |
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Thesaurus NAL: |
animal nutrition. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/48567/1/ManagementProfiency.pdf
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Marc: |
LEADER 02593nam a2200193 a 4500
001 1048567
005 2023-06-12
008 2008 bl uuuu u00u1 u #d
100 1 $aSOUZA, G. B. de
245 $aManagement of a prociciency testinf for animal nutrition laboratories.$h[electronic resource]
260 $aIn: WORKSHOP PROFICIENCY TESTING IN ANALYTICAL CHEMESTRY, MICROBIOLOGY AND LABORATORY MEDICINE 6., 2008, Rome. Current practice and future directions - abstracts. Rome: IISTISAN$c2008
300 $ap. 37.
520 $aAn interlaboratory program has been conducted for the comparison of results provided by laboratories that perform feed analyses of animal nutrition carried out by the Embrapa Cattle-Southeasta, Brazilian Agricultural ResearchO rganization. The program structure and normalizationa re accomplishedi n accordancew ith the ABNT ISO/IEC GUIA 43 roles and with the harmonized international protocol of proficiency assays in analytical laboratories. AlI steps, from data acquisition to furnished the results, are controlled by a website, by using a dedicate program especially developed to bank of data controlo Nowadays, 44 laboratories,p rovided from Universities, govemmentalr esearchc enters, and private companies, representing alI the Brazilian regions, have been participating of the programo The essays foreseen by the program are the normally carried out by animal nutrition laboratories in animal feeds and mineral supplements, such as determination of dry matter, in vitro digestibility, neutral detergent fiber, acid detergent fiber, crode protein, ether extract, lignin, ash and macro- and micronutrients (Ca, P, Mg, K, S, Cu, Fe, Mn, Zn, and Na). Four turns of the program is yearly performed, each two months, and each parcel is composed by three different kinds of animal feed and mineral supplements. The statistical project employed to evaluate the laboratories scores is based on the roles recommended by the ABNT ISO/IEC GUIA 43-1, and the score z is adopted. For the values designatese valuation, median and robust standardd eviation, the consensusv alues based on the results provided by the participants are considered. Another proposition is to prepare and validate non certified reference materiaIs that could be used as internal quality control by the participants of the programo This work presents the experience in coordinatingt he intercomparison exercise.
650 $aanimal nutrition
653 $aProficienct testing
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aPICCHI, C. M. C.
700 1 $aGUIMARÃES, E. S.
700 1 $aBARIONI JUNIOR, W.
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Embrapa Pecuária Sudeste (CPPSE) |
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