Patterns with Equal Values in Permutation Entropy: Do They Really Matter for Biosignal Classification?

Table 7

Results of the classification performance at baseline and with 25% synthetic ties for RR records. Random perturbations, the modified PE algorithm, and the AAPE method (only the part that deals with ties) were also used to address the possible ambiguities caused by equal values in PE patterns.

No mitigation		Random perturbations		Modified PE		AAPE
Baseline	25%	Baseline	25%	Baseline	25%	Baseline	25%