Research Article

Feature Selection for Interpatient Supervised Heart Beat Classification

Table 3

Top 10 features as ranked by the MI criterion. Ref. stands for the reference annotations provided with the MIT database.

Pos. Description Lead

1 Previous R-R (normalized) Ref.
2 T wave amplitude (normalized) 1
3 2nd-order statistic at −40 msec 1
4 2nd-order statistic at +40 msec 1
5 2nd-order statistic at −166 msec 1
6 2nd-order statistic at 166 msec 1
7 T wave interpolation at 50% 1
8 Previous R-R Ref.
9 Next R-R (normalized) Ref.
10 T wave interpolation at 60% 1