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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
15/05/1996 |
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Data da última atualização: |
15/05/1996 |
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Autoria: |
WILLIAMS, W. T.; BUNT, J. S. |
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Título: |
Studies in the analysis of data from Australia tidal forest ('Mangroves'). II. The use of an asymmetric monothetic divisive classificatory program. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Australian Journal of Ecology, v.5, n.4, p.391-396, 1980. |
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Idioma: |
Inglês |
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Conteúdo: |
An algorithm (ASYM) is defined which implements a monothetic divisive classification of presence/absence data; it is based on the Jaccard measure and is consequently asym- metric, in that it ignores double-zero matches. It is insensitive to group size but sensitive to floristic heterogeneity. An extensive set of Australian tidal forest data is processed both by ASYM and by the symmetric information-statistic divisive program DIVINE. It is concluded that the two systems are complementary in that they reveal somewhat different aspects of the data-structure; but that if only program were to be used, ASYM would be ecological preferable. |
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Palavras-Chave: |
Analysis; Asymetric monothetic divisive; Classificatory program; Floresta relativo a mare; Mangroves; Programa classificatorio; Tidal forests. |
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Thesagro: |
Análise. |
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Thesaurus Nal: |
Australia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01397naa a2200241 a 4500
001 1788358
005 1996-05-15
008 1980 bl --- 0-- u #d
100 1 $aWILLIAMS, W. T.
245 $aStudies in the analysis of data from Australia tidal forest ('Mangroves'). II. The use of an asymmetric monothetic divisive classificatory program.
260 $c1980
520 $aAn algorithm (ASYM) is defined which implements a monothetic divisive classification of presence/absence data; it is based on the Jaccard measure and is consequently asym- metric, in that it ignores double-zero matches. It is insensitive to group size but sensitive to floristic heterogeneity. An extensive set of Australian tidal forest data is processed both by ASYM and by the symmetric information-statistic divisive program DIVINE. It is concluded that the two systems are complementary in that they reveal somewhat different aspects of the data-structure; but that if only program were to be used, ASYM would be ecological preferable.
650 $aAustralia
650 $aAnálise
653 $aAnalysis
653 $aAsymetric monothetic divisive
653 $aClassificatory program
653 $aFloresta relativo a mare
653 $aMangroves
653 $aPrograma classificatorio
653 $aTidal forests
700 1 $aBUNT, J. S.
773 $tAustralian Journal of Ecology$gv.5, n.4, p.391-396, 1980.
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Embrapa Pantanal (CPAP) |
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