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Table 4 Experimental statistics of the recognition rate for all pitches and all beats using features 1 to 4

From: An optical music recognition system for traditional Chinese Kunqu Opera scores written in Gong-Che Notation

Feature Recognition rate of pitch (%) Recognition rate of beat (%)
BC GA KNN BC KNN
Feature 1 52.75 43.09 64.80 55.59 70.78
Feature 2 52.59 41.05 59.35 57.10 73.46
Feature 3 51.97 43.60 62.72 58.32 68.17
Feature 4 58.24 42.72 49.85 61.68 56.63
Average rate 53.89 42.62 59.18 58.17 67.26