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http://hdl.handle.net/10174/6080
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Title: | Generate disaggregated soil allocation data using a minimum cross entropy model |
Authors: | Fragoso, R. Martins, M.B Lucas, M.R. |
Keywords: | Montado ecosystem Cross Entropy Maximum Entropy incomplete information |
Issue Date: | 2008 |
Publisher: | WSEAS |
Citation: | Fragoso, R., M.B. Martins, M.R.V. Lucas (2008), "Generate disaggregated soil allocation data using a minimum cross entropy model", WSEAS Transaction on Environment and Development, 9(4), 756-766. |
Abstract: | Montado ecosystem in the Alentejo Region, south of Portugal, has enormous agro-ecological and
economics heterogeneities. A definition of homogeneous sub-units among this heterogeneous ecosystem was
made, but for them is disposal only partial statistical information about soil allocation agro-forestry activities. The
paper proposal is to recover the unknown soil allocation at each homogeneous sub-unit, disaggregating a complete
data set for the Montado ecosystem area using incomplete information at sub-units level. The methodological
framework is based on a Generalized Maximum Entropy approach, which is developed in thee steps concerning the
specification of a r order Markov process, the estimates of aggregate transition probabilities and the disaggregation
data to recover the unknown soil allocation at each homogeneous sub-units. The results quality is evaluated using
the predicted absolute deviation (PAD) and the “Disagegation Information Gain” (DIG) and shows very acceptable
estimation errors. |
URI: | http://hdl.handle.net/10174/6080 |
Type: | article |
Appears in Collections: | GES - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica CEFAGE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
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