Table 3. Overall and individual class accuracies of land use/ land cover (LULC) maps of Gedaref state for the years 1988, 1998, 2008 and 2018.

Class	Producer’s accuracy (%)	User’s accuracy (%)	F1 score (%)	Overall accuracy (%)	Allocation disagreement (%)	Quantity disagreement (%)
1988
Cropland	88.88	77.41	82.75	81.75	14	4
Forest	81.13	81.39	81.39
Grassland	85.29	80.55	82.85
Water	81.13	81.13	81.13
Settlement	73.13	89.09	80.32
1998
Cropland	83.07	83.07	83.07	83.28	14	3
Forest	83.13	87.34	85.18
Grassland	84.48	77.77	80.99
Water	86.66	81.25	83.87
Settlement	78.78	86.66	82.53
2008
Cropland	95.23	82.19	88.23	85.15	11	4
Forest	86.07	85.00	85.53
Grassland	76.56	87.50	81.63
Water	88.88	87.67	88.27
Settlement	76.92	83.33	80.00
2018
Cropland	89.28	80.64	84.74	87.70	9	3
Forest	89.07	88.33	88.70
Grassland	84.78	81.25	82.97
Water	79.20	94.11	86.02
Settlement	92.40	88.48	90.40