Sentence examples for using the scenario tree from inspiring English sources

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Sensitivity (Se) of the current post-farm-gate passive surveillance for detection of exotic diseases was estimated using the scenario tree modelling methodology (Martin et al., 2007a).

In this study, the sensitivities for different sampling designs proposed by the Spanish authorities for the commercial poultry population of Catalonia were assessed, using the scenario tree model methodology.

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A beta distribution was used to model the overall probability of notification between 2000 and 2005 for each jurisdiction, and the ratio of this probability per 100,000 population to the expected notification rate (constrained to have an upper limit of 1.0) was used in the scenario tree.

In our use of the scenario tree method, we also aimed at calculating a sample size to demonstrate disease freedom for a given sensitivity and at a given prevalence.

(2) Equation 2 can be used to understand the scenario tree model results, and explore the impact of alternative probabilities of disease introduction or surveillance sensitivity on the maximum (equilibrium) probability of disease freedom.

In this paper, we compare the two types of multi-period stochastic optimization models, and clarify that the hybrid model can evaluate and control risk better than the scenario tree model using some numerical tests.

In the scenario tree model, we used a design prevalence at the herd level (P*H) of 0.2% for both IBR and EBL (Table 2).

A quantitative model based on the scenario tree method was subsequently used to calculate the required sample size of a targeted sampling approach (TS) for a given sensitivity.

In particular, simulation is used to generate outcomes associated with the nodes of the scenario tree which, in turn, provide the input parameters for an optimization model aimed at determining the scenarios' probabilities matching some prescribed targets.

To address this challenge the present paper proposes the improvement of the scenario tree approach through the use of two scenario reduction methods.

We did this using different values for Pr RF and RR RF and checking if the scenario tree model produced logical results.

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