RT info:eu-repo/semantics/article T1 Machine learning classification–Regression schemes for desert locust presence prediction in western Africa A1 Cornejo Bueno, Laura A1 Pérez Aracil, Jorge A1 Casanova Mateo, Carlos A1 Sanz Justo, María Julia A1 Salcedo Sanz, Sancho K1 Desert locust K1 Plagas de insectos K1 Langosta (Insecto) K1 Classification K1 Regression analysis K1 Análisis de regresión K1 Statistical Learning K1 Machine learning K1 Aprendizaje automático K1 Artificial intelligence K1 Remote sensing K1 Teledeteccion K1 1203.04 Inteligencia Artificial K1 1209.01 Estadística Analítica AB For decades, humans have been confronted with numerous pest species, with the desert locust being one of the most damaging and having the greatest socio-economic impact. Trying to predict the occurrence of such pests is often complicated by the small number of records and observations in databases. This paper proposes a methodology based on a combination of classification and regression techniques to address not only the problem of locust sightings prediction, but also the number of locust individuals that may be expected. For this purpose, we apply different machine learning (ML) and related techniques, such as linear regression, Support Vector Machines, decision trees, random forests and neural networks. The considered ML algorithms are evaluated in three different scenarios in Western Africa, mainly Mauritania, and for the elaboration of the forecasting process, a number of meteorological variables obtained from the ERA5 reanalysis data are used as input variables for the classification–regression machines. The results obtained show good performance in terms of classification (appearance or not of desert locust), and acceptable regression results in terms of predicting the number of locusts, a harder problem due to the small number of samples available. We observed that the RF algorithm exhibited exceptional performance in the classification task (presence/absence) and achieved noteworthy results in regression (number of sightings), being the most effective machine learning algorithm among those used. It achieved classification results, in terms of F-score, around the value of 0.9 for the proposed Scenario 1. PB MDPI SN 2076-3417 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/68422 UL https://uvadoc.uva.es/handle/10324/68422 LA eng NO Applied Sciences, 2023, Vol. 13, Nº. 14, 8266 NO Producción Científica DS UVaDOC RD 25-nov-2024