Journal article

Optimal surveillance against bioinvasions: a sample average approximation method applied to an agent-based spread model.

Hoa Thi Minh Nguyen, Pham Van Ha, Tom Kompas

Ecol Appl | Published : 2021


Trade-offs exist between the point of early detection and the future cost of controlling any invasive species. Finding optimal levels of early detection, with post-border active surveillance, where time, space and randomness are explicitly considered, is computationally challenging. We use a stochastic programming model to find the optimal level of surveillance and predict damages, easing the computational challenge by combining a Sample Average Approximation (SAA) approach and parallel processing techniques. The model is applied to the case of Asian Papaya Fruit Fly (PFF), a highly destructive pest, in Queensland, Australia. To capture the non-linearity in PFF spread, we use an agent-based ..

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University of Melbourne Researchers