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Table 4 The computation time of the processing of this method

From: Automatic online detection of atrial fibrillation based on symbolic dynamics and Shannon entropy

Databases

Signal duration (sec)

Computation time (sec) §

LTAFDB

6970560 (1936.27 hours)

11.09

AFDB

917052.96 (254.74 hours)

1.445

AFDB

843688.72 (234.36 hours)

1.353

AFDB

843688.72 (234.36 hours)

1.406

MITDB

86666.67 (24.07 hours)

0.116

NSRDB

1574976 (437.49 hours)

1.825

AFDB+NSRDB

2492028.96 (692.23 hours)

3.258

  1. Records “00735” and “03665” omitted.
  2. Records “04936” and “05091” omitted.
  3. §Desktop test environment: (a) hardware: Intel Pentium(R) Dual-Core E5800(3.20GHz)/DDR3 RAM (2GBytes,800MHz)/ HDD(7200rpm); (b) software: WINDOWS XP Professional/mingw32-g++/C++. The computation times are the average values of 100 trials, and they include the time consumption for importing raw data from the HDD into the RAM.