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Detalles del recurso


The issue of reallocating population figures from a set of geographical units onto another set of units has received a great deal of attention in the literature. Every other day, a new algorithm is proposed, claiming that it outperforms competitor procedures. Unfortunately, when the new (usually more complex) methods are applied to a new data set, the improvements attained are sometimes just marginal. The relationship cost-effectiveness of the solutions is case-dependent. The majority of studies have focused on large areas with heterogeneous population density distributions. The general conclusion is that as a rule more sophisticated methods are worth the effort. It could be argued, however, that when we work with a variable that varies gradually in relatively homogeneous small units, simple areal weighting methods could be sufficient and that ancillary variables would produce marginal improvements. For the case of reallocating census data, our study shows that, even under the above conditions, the most sophisticated approaches clearly yield the better results. After testing fourteen methods in Barcelona (Spain), the best results are attained using as ancillary variable the total dwelling area in each residential building. Our study shows the 3-D methods as generating the better outcomes followed by multiclass 2-D procedures, binary 2-D approaches and areal weighting and 1-D algorithms. The point-based interpolation procedures are by far the ones producing the worst estimates.

Pertenece a

RiuNet. Repositorio institucional de la Universitat de Valencia  


Pavía, José M. -  Cantarino Martí, Isidro - 

Id.: 69787055

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveDasymetric mapping - 

Tipo de recurso: info:eu-repo/semantics/article  -  info:eu repo/semantics/publishedVersion  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Reserva de todos los derechos

Requerimientos técnicos:  Browser: Any - 

Relación: [References] Geographical Analysis
[References] http://dx.doi.org/10.1111/gean.12112

Fecha de contribución: 13-abr-2017


* 0016-7363
* 10.1111/gean.12112
* 1538-4632

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