TY - JOUR A1 - Duarte, D. A1 - Andriolo, U. A1 - Gonçalves, G. T1 - ADDRESSING THE CLASS IMBALANCE PROBLEM IN THE AUTOMATIC IMAGE CLASSIFICATION OF COASTAL LITTER FROM ORTHOPHOTOS DERIVED FROM UAS IMAGERY JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - V-3-2020 SP - 439 EP - 445 Y1 - 2020/08/03 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/V-3-2020/439/2020/ L1 - https://isprs-annals.copernicus.org/articles/V-3-2020/439/2020/isprs-annals-V-3-2020-439-2020.pdf DO - 10.5194/isprs-annals-V-3-2020-439-2020 ER -