On the Use of Self-Organizing Map for Text Clustering in Engineering Change Process Analysis: A Case Study

Table 2

Contingency matrix .

	MS	CR	AN	SR	HP	PS
		0	0	8	0	0		0	8
	1	0	0	0	9	10	20
	1	8	0	0	0	0	9
	0	0	0	7	0	0	7
	10	0	0	0	0	0	10
	12	8	8	7	9	10