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(21.3c) m n d w i = ρ g r e e n − ρ m i r ρ g r e e n + ρ m i r, where ρ is the reflectance at a given spectral band (NIR, red and green). Thresholds are often optimally determined with the …

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Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an orebody, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.

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Alluvial diagram is a variant of a Parallel Coordinates Plot (PCP) but for categorical variables. Variables are assigned to vertical axes that are parallel. Values are represented with blocks on each axis. Observations are represented with alluvia (sing. “alluvium”) spanning across all the axes ...

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