Estudio comparativo entre enfoques paramétricos y de redes neuronales artificiales para la evaluación económica de la producción de patata en Irán

  • M. Zangeneh Department of Agricultural Machinery Engineering. Faculty of Agricultural Engineering and Technology. School of Agriculture and Natural Resources. University of Tehran. Karaj. Iran
  • M. Omid Department of Agricultural Machinery Engineering. Faculty of Agricultural Engineering and Technology. School of Agriculture and Natural Resources. University of Tehran. Karaj. Iran
  • A. Akram Department of Agricultural Machinery Engineering. Faculty of Agricultural Engineering and Technology. School of Agriculture and Natural Resources. University of Tehran. Karaj. Iran
Palabras clave: coeficiente beneficio/costo, costo total de producción, error de estimación, función de producción Cobb-Douglas, productividad económica, redes neuronales artificiales, Solanum tuberosum

Resumen

La patata es el producto agrícola más importante en la provincia de Hamadan (Irán), donde se plantaron 25.503 ha de este cultivo en 2008 bajo condiciones de riego. Este trabajo compara los resultados de aplicar dos enfoques diferentes, un modelo paramétrico (PM) y redes neuronales artificiales (ANN), para evaluar la productividad económica (EP), los costos totales de producción (TCP) y el coeficiente beneficio/costo (BC) del cultivo de la patata. En esta comparación se han utilizado la función Cobb-Douglas como PM y el proceso “feedforward” multicapa para implementar modelos de ANN. Las ANN, con una topología 8-6-12-1 con R2 = 0,89, resultaron ser el modelo más adecuado para estimar la EP. Del mismo modo, las topologías óptimas para TCP y BC fueron 8-13-15-1 (R2 = 0,97) y 8-15- 13-1 (R2 = 0,94), respectivamente. Para validar los modelos PM y ANN, se utilizó como indicador de desempeño el error porcentual medio absoluto (MAPE). El enfoque de ANN permitió reducir el MAPE desde –184% para PM a menos del 7% con un rango de variabilidad de +30% a–95%. Dado que ANN fue mejor que el modelo PM, debe ser preferido para la estimación de los índices económicos.

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Publicado
2011-09-01
Cómo citar
Zangeneh, M., Omid, M., & Akram, A. (2011). Estudio comparativo entre enfoques paramétricos y de redes neuronales artificiales para la evaluación económica de la producción de patata en Irán. Spanish Journal of Agricultural Research, 9(3), 661-671. https://doi.org/10.5424/sjar/20110903-371-10
Sección
Economía agraria