Spectral Discrimination of Archaeological Sites Previously Occupied by Farming Communities Using In Situ Hyperspectral Data

Table 7

Error matrices showing the overall accuracy and kappa for the classification of the four soil classes, nonvitrified dung (NVD), midden (MD), nonsites (NS), and vitrified dung (VD), using all variables (2151 bands) and the optimum variables (8 bands).

Class	Using 2151 bands					Using 8 bands
	NVD	MD	NS	VD	Total	NVD	MD	NS	VD	Total
NVD	30	4	0	0	34	30	6	0	0	36
MD	4	18	0	4	26	4	17	0	0	21
NS	1	2	27	0	30	1	2	27	0	30
VD	0	1	0	14	15	0	0	0	18	18
Total	35	25	27	18	105	35	25	27	18	105
OA	84.76%					87.62%
Kappa	0.7927					0.8316