Multigrades Classification Model of Magnesite Ore Based on SAE and ELM

Table 6

Different ways of detecting chart.

Experiment object	Accuracy of magnesite	Identification time-consuming	Expenses
Traditional artificial method	65%	2.5 days	$105
Chemical test method	100%	18 days	$1744
BP	60%	2.5 hours	$27
ELM	98%	2.0 hours	$27