Machine Learning and Electrocardiography Signal-Based Minimum Calculation Time Detection for Blood Pressure Detection
Table 1
Representation of features mathematical and code.
Nu
Feature
Equation
1
Kurtosis
2
Skewness
3
IQR
4
CV
5
Geometric mean
6
Harmonic mean
7
Activity-Hjort parameters
8
Mobility-Hjort parameters
9
Complexity-Hjort parameters
10
Maximum
11
Median
12
Mean absolute deviation
13
Minimum
14
Central moments
15
Mean
16
Average curve length
17
Average energy
18
Root mean squared
19
Standard error
20
Standard deviation
21
Shape factor
22
Singular value decomposition
23
25% trimmed mean
24
50% trimmed mean
25
Average Teager energy
The property was computed using MATLAB. IQR: interquartile range; CV: coefficient of variation. : variance of the signal .: variance of the 1st derivative of the signal .: variance of the 2nd derivative of the signal