Apple Variety Identification Using Near-Infrared Spectroscopy

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Dimension reduction methods</td><td class="align_center">The number of neurons</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">PCA</td><td class="align_center">17</td></tr><tr><td class="align_left">SPA</td><td class="align_center">21</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The optimal number of neurons in the hidden layer of BPNN models.</div>

Journal of Spectroscopy

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Table 3

Table 3: Apple Variety Identification Using Near-Infrared Spectroscopy 