Table 3 Quality of prediction of mineral indexes by bulk-rock chemistry, testing set. Percent of coincindence.

From: Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia

  C M A F
Mineral norms 51 56 61 46
Multiple regression 44 51 49 44
Neural network 66 61 62 61
Logical evaluation 68 61 61 55