Abstract: . . .  t08 0.3097 t03 1.8823 s06 2.0094 s09 t09 0.0613 t03 0.6669 s03 0.7625 s10 t10 0.1254 s04 1.0065 t04 1.0220 t01 s01 0.1118 s07 3.7456 t08 3.7523 t02 s02 0.0329 t05 0.4031 s05 0.4935 t03 s03 0.1488 s07 0.5871 s09 0.6669 t04 s04 0.0164 t10 0.7316 s10 1.0220 t05 s05 0.0330 t02 0.4031 s02 0.4165 t06 s06 0.0224 t08 1.5724 t03 2.0117 t07 s07 0.1151 s02 0.7567 t05 0.7808 t08 s08 0.3097 t03 1.2989 s06 1.5680 t09 s09 0.0613 t03 0.7371 s03 0.8337 t10 s10 0.1254 s04 0.7218 t04 0.7316 Table 3: The results of calculating the KL distance between pairs in Groups S and T. In the columns next to each record are the record name and KL distance of the three closest records. b01 ? b03 b05 ? b19 b10 ? b15 b14 ? b16 b02 ? b07 b06 ? b17 b11 ? b18 b04 ? b13 b08 ? b09 b12 ? b20 Table 4: Record pairs in Test Set B according to the KL distance. 8  . . .
. . .  from the same patient. Two results from our study merit further investigation. First, it appears that non-terminating AF has sufficiently different R-R statistics from terminating AF to build a useful classifier. Further study of the physiological reasons behind this is warranted. Second, spectral analysis 5 Page 7 Figure 4: The last beat of records b01 and b03. b03 is chosen as the terminating record because of an absence of p-waves during ventricular recovery. can be used to automatically find records belonging to the same patient. This could have wide application to electronic record systems. References [1] R. Duda, P. Hart, and D. Stork. Pattern Classification . John Wiley & Sons, 2000. [2] A.L. Goldberger, L. A. N. Amaral, L. Glass, J. M. Hausdorff, P. Ch. Ivanov, R. G. Mark, J. E. Mietus, G. B. Moody, C.-K. Peng, and H. E Stanley. PhysioBank, Phys- ioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation , 101(23):e215e220, 2000 June 13. Circulation Electronic Pages: http://circ.ahajournals.org/cgi/content/full/101/23/e215. [3] W.B. Kannel, R.D. Abbott, D.D. Savage, and et al. Epidemiologic features of atrial fibrilla- tion: The framingham study. N Engl J Med , 306:10181022, 1982. [4] A. D. Krahn, Manfreda J, R. B. Tate, and et al. The natural history of atrial fibrillation :  . . .
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