Editing Learning vector quantization (section)

=== LVQ1 ===
Initialize several code vectors per label. Iterate until convergence criteria is reached.

# Sample a datum <math>x_i</math>, and find out the code vector <math>w_j</math>, such that <math>x_i</math> falls within the [[Voronoi diagram|Voronoi cell]] of <math>w_j</math>.
# If its label <math>y_i</math> is the same as that of <math>w_j</math>, then <math>w_j \leftarrow w_j + \alpha_t(x_i - w_j)</math>, otherwise, <math>w_j \leftarrow w_j - \alpha_t(x_i - w_j)</math>.