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

Table 1

Distance metric learning methods used in this work.

Unsupervised distance metric learning method		Principal component analysis (PCA) [19, 21]
Supervised distance metric learning method	Global	Fisher discriminative analysis (FDA) [21]
		Relevant component analysis (RCA) [22]
	Local	Neighborhood component analysis (NCA) [23]
		Local fisher discriminative analysis (LFDA) [24]
		Large margin nearest neighborhood (LMNN) [25]