Research Article

Macroscopic Rock Texture Image Classification Using a Hierarchical Neuro-Fuzzy Class Method

Table 9

Best performance obtained by NFHB-Class1 (fixed selection strategy), NFHB-Class2 (adaptive selection strategy) and neural networks, for rock classes: gneiss and basalt; diabase, and rhyolite; basalt, diabase, and rhyolite; gneiss, basalt, diabase, and rhyolite.

Rock Model Correct percentage of training set Correct percentage of validation set Number of generated rules

Gneiss and basalt NFHB-Class1 96% 96% 53
NFHB-Class2 98.67% 96.67% 68
Neural network 100% 94%

Diabase and rhyolite NFHB-Class1 81.6% 86% 22
NFHB-Class2 87.2% 86% 33
Neural network 99.2% 85.2%

Basalt, diabase, and rhyolite NFHB-Class1 84% 80.57% 77
NFHB-Class2 84.29% 80.29% 33
Neural network 97.42% 77.42%

Gneiss, basalt, diabase, and rhyolite NFHB-Class1 77% 75.75% 105
NFHB-Class2 83.75% 77.75% 79
Neural network 97% 77%