TABLE 2. Notations Used in Trace Similarity Comparison.

Notation	Meaning	(Default) Value
	No. of samples in an entire compared trace
	No. of samples generated during an actual contact
	Time window of interest (e.g. disease transmissible duration; see Fig. 2)	Disease-specific
	Time length of the comparison window	[10, 120] sec.
	Actual contact duration (; see Fig. 2)	–
	No. of samples in the comparison window
	Magnetometer sampling rate used in trace	10 Hz
	Threshold for contact decision	[0.1, 0.9]
	’th sample in the traces A and B, resp.	–
	Means of samples in the traces A and B in , resp.	–
	Std. dev. of samples in the traces A and B in , resp.	–
	Correlation coefficient of samples from the traces A and B starting from ’th sample	–