Using the K-Nearest Neighbor Algorithm for the Classification of Lymph Node Metastasis in Gastric Cancer

Table 7

Classification performance of the KNN algorithm with metric learning methods.

Data (length of feature set)	Prenorm (4)	Norm 01 (5)
KNN	80.79%	83.68%
without PCA	80.79%	83.68%
PCA	82.11%	81.84%
PCA + LDA	77.89%	96.33%
PCA + RCA	77.63%	96.33%
PCA + LFDA	76.97%	96.33%
PCA + NCA	76.58%	86.32%
PCA + LMNN	76.84%	96.33%