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. 2018 Feb 23;19:161. doi: 10.1186/s12864-018-4546-8

Table 2.

The comparison of the performance when a constant learning rate and a decreasing learning rate are applied

Constant Learning Rate Decreasing Learning Rate
Input Parameters Running Time Accuracy
(Average dSCC)
Running Time Accuracy
(Average dSCC)
CHR = 1-22, NUM_STR = 1, ALPHA = constant 4 min 0.821 13 s 0.8493
CHR = 1-22, NUM_STR = 1, ALPHA = [0.1, 2] 1 h, 30 min 0.8456 3 min 0.8536
CHR = 1-22, NUM_STR = 5, ALPHA = [0.1, 2] 7 h 0.8546 20 min 0.8546
CHR = 1, NUM_STR = 1, ALPHA = constant 37 s 0.7556 2 s 0.8088
CHR = 1, NUM_STR = 5, ALPHA = [0.1, 2] 1 h 0.7841 3 min 0.8088
CHR = 21, NUM_STR = 1, ALPHA = constant 0.7 s 0.8969 0.2 s 0.8995
CHR = 21, NUM_STR = 5, ALPHA = [0.1, 2] 36 s 0.9018 2 s 0.9018
CHR = 21, NUM_STR = 30, ALPHA = [0.1, 2] 4 min 0.9018 12 s 0.9018
CHR = 21, NUM_STR = 50, ALPHA = [0.1, 2] 6 min 0.9021 18 s 0.9018
CHR = 21, NUM_STR = 100, ALPHA = [0.1, 2] 12 min 0.9020 37 s 0.9020
CHR = 21, NUM_STR = 200, ALPHA = [0.1, 2] 24 min 0.9022 83 s 0.9020
CHR = 21, NUM_STR = 500, ALPHA = [0.1, 2] 1 h 0.9022 3 min 0.9021

The comparison of the computing time and the average dSCC value obtained by using a constant or a decreasing learning rate for different input parameters for the chromosome 1 – 22 of the GM06990 cell line. We used the constant learning rate 0.0001, and we defined the initial_λ = 0.01 for the decreasing learning rate. CHR represents the chromosome number, and NUM_STR represents the number of ensemble structures generated per conversion factor(α), ALPHA represents the conversion factor. The decreasing learning rate achieved a better computing speed in all the cases