A comparison of two sensitivity analysis techniques based on four bayesian models representing ecosystem services provision in the Argentine Pampas
Sensitivity analyses (SAs) identify how an output variable of a model is modified by changes in the input variables. These analyses are a good way for assessing the performance of probabilistic models, like Bayesian Networks (BN). However, there are several commonly used SAs in BN literature, and fo...
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| Otros Autores: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2017rositano.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 024 | |a 10.1016/j.ecoinf.2017.07.005 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 0 | 0 | |a A comparison of two sensitivity analysis techniques based on four bayesian models representing ecosystem services provision in the Argentine Pampas |
| 520 | |a Sensitivity analyses (SAs) identify how an output variable of a model is modified by changes in the input variables. These analyses are a good way for assessing the performance of probabilistic models, like Bayesian Networks (BN). However, there are several commonly used SAs in BN literature, and formal comparisons about their outcomes are scarce. We used four previously developed BNs which represent ecosystem services provision in Pampean agroecosystems (Argentina) in order to test two local sensitivity approaches widely used. These SAs were: 1) One-at-a-time, used in BNs but more commonly in linear modelling; and 2) Sensitivity to findings, specific to BN modelling. Results showed that both analyses provided an adequate overview of BN behaviour. Furthermore, analyses produced a similar influence ranking of input variables over each output variable. Even though their interchangeably application could be an alternative in our bayesian models, we believe that OAT is the suitable one to implement here because of its capacity to demonstrate the relation (positive or negative) between input and output variables. In summary, we provided insights about two sensitivity techniques in BNs based on a case study which may be useful for ecological modellers. | ||
| 653 | |a SENSITIVITY ANALYSES | ||
| 653 | |a PROBABILISTIC MODELS | ||
| 653 | |a BAYESIAN NETWORKS | ||
| 653 | |a ONE-AT-A-TIME | ||
| 653 | |a SENSITIVITY TO FINDINGS | ||
| 700 | 1 | |9 27337 |a Rositano, Florencia |u IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cerealicultura, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina. E-mail: rositano@agro.uba.ar | |
| 700 | 1 | |9 22554 |a Piñeiro, Gervasio |u IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Recursos Naturales y Ambiente, Cátedra de Ecología, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina | |
| 700 | 1 | |9 12448 |a Bert, Federico E. |u Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cerealicultura, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina | |
| 700 | 1 | |9 11063 |a Ferraro, Diego Omar |u IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina: Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cerealicultura, Av. San Martín 4453 (C1417DSE), Buenos Aires, Argentina | |
| 773 | |t Ecological Informatics: an international journal on ecoinformatics and computational ecology |g Vol.41 (2017), p.33-39, grafs. | ||
| 856 | |f 2017rositano |i en reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2017rositano.pdf |x ARTI201806 | ||
| 856 | |z LINK AL EDITOR |u http://www.elsevier.com | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||