Gold Standard Evaluation of an Automatic HAIs Surveillance System

Table 2

C × C confusion matrix for a multiple-condition prediction system.

Prediction system	Gold standard
	1	2	3	4	5	…	C	Total
1	X11	X12	X13	X14	X15	…	X1C	X1
2	X21	X22	X23	X24	X25	…	X2C	X2
3	X31	X32	X33	X34	X35	…	X3C	X3
4	X41	X42	X43	X44	X45	…	X4C	X4
5	X51	X52	X53	X54	X55	…	X5C	X5
…	…	…	…	…	…	…	…	…
C	XC1	XC2	XC3	XC4	XC5	…	XCC	XC
∑	X.1	X.2	X.3	X.4	X.5	…	X.C	n