Abstract
In this paper, we tried discrimination of five herb species and mixed gases using SOM (Self-Organizing Map). Previously we used BP method (Back Propagation method) three times hierarchically to discriminate five herb species (Linden, Chamomile, Rose hips, Lavender, Lemon bamu). This time, the improvement of discrimination method was done by using SOM, which is simple method, compared with the BP method. The obtained discrimination result is 96.7 [%]. The discrimination of methane-hydrogenmixed gases was also tried by SOM. This discrimination result is also good. Moreover, as the formed map is reflecting the influence between methane and hydroge gas, and we can see the discrimination result visually.
