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  • 标题:A minimum cross entropy model to generate disaggregated agricultural data at the local level
  • 本地全文:下载
  • 作者:Xavier, Antonio ; Martins, Maria de Belem ; Fragoso, Rui Manuel de Sousa
  • 期刊名称:Journal of Food Distribution Research
  • 印刷版ISSN:0047-245X
  • 出版年度:2011
  • 出版社:Food Distribution Research Society
  • 摘要:This work presents an entropy approach to disaggregate agricultural data at a local level. It comprises two different steps. In a first one, an information prior at disaggregated level based on experts’ opinions, available cartography of land use and biophysical data is created. In a second step, it’s used a minimum cross entropy process in order to manage these information inputs and to guaranty a solution compatible with all the different restrictions. The model was applied to the region of Algarve in the year of 1999, in order to disaggregate the data at the pixel and county level. Results show that the model was able to provide some satisfactory results since the estimated values obtained for the different areas revealed a good approximation to the true values. These results were then analyzed and provided a new insight about the policies’ consequences in the territory.
  • 关键词:Minimum cross entropy;data disaggregation;local level;Algarve;agricultural policies
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