Table 2.

Identification rates with the four different pattern matching methods using wrist ECG data: (a) for 55 subjects; (b) for the reduced number of 20 subjects.

Length of Signal	Cosine	Cross	City Block	Euclidean
(a)
One cycle	78.18%	83.00%	85.91%	88.75 %
Two cycles	84.89%	85.00%	88.75%	89.89%
Three cycles	85.85%	85.73%	92.69%	93.28%
(b)
One cycle	87.50%	91.56%	93.75%	95.63%
Two cycles	91.56%	93.44%	96.88%	95.62%
Three cycles	94.69%	96.38%	97.19%	97.50%