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Table 4 Statistics of the best melody’s fitness improvement from the initial to the final rating iteration, for all raters and setups, in all the respective simulations

From: Interactive music composition driven by feature evolution

Rater–setup

Best init. fit.

Best last fit.

Rel. impr.

\(90\,\%\) iter.

\(\hbox {R}_1\)

 \(\hbox {S}_1\)

   Rhythm

8.26 (1.76)

4.98 (1.27)

0.39 (0.15)

8.62 (4.79)

   Tone

4.74 (0.77)

2.89 (0.74)

0.38 (0.17)

6.28 (4.79)

 \(\hbox {S}_2\)

   Rhythm

8.12 (1.35)

5.22 (1.31)

0.35 (0.15)

6.12 (3.63)

   Tone

4.54 (0.76)

2.88 (0.82)

0.36 (0.19)

3.98 (3.63)

 \(\hbox {S}_3\)

   Rhythm

8.07 (1.30)

4.45 (0.94)

0.44 (0.12)

9.22 (4.41)

   Tone

4.55 (0.89)

2.49 (0.77)

0.44 (0.19)

7.94 (4.41)

 \(\hbox {S}_4\)

   Rhythm

8.30 (1.58)

5.00 (1.09)

0.38 (0.15)

9.54 (4.31)

   Tone

4.45 (0.84)

2.51 (0.57)

0.42 (0.16)

7.64 (4.31)

\(\hbox {R}_2\)

 \(\hbox {S}_1\)

   Rhythm

8.75 (1.32)

5.27 (1.47)

0.40 (0.14)

9.10 (4.24)

   Tone

4.57 (0.98)

2.63 (0.67)

0.41 (0.17)

7.04 (4.24)

 \(\hbox {S}_2\)

   Rhythm

8.57 (1.36)

5.15 (1.50)

0.40 (0.16)

6.52 (4.26)

   Tone

4.75 (0.72)

2.91 (0.88)

0.37 (0.21)

5.12 (4.26)

 \(\hbox {S}_3\)

   Rhythm

8.39 (1.59)

4.72 (1.23)

0.43 (0.16)

10.76 (5.48)

   Tone

4.49 (0.85)

2.31 (0.79)

0.47 (0.19)

8.92 (5.48)

 \(\hbox {S}_4\)

   Rhythm

8.31 (1.47)

4.76 (1.54)

0.42 (0.15)

10.14 (4.88)

   Tone

4.68 (0.77)

2.72 (0.64)

0.40 (0.17)

8.84 (4.88)

\(\hbox {R}_3\)

 \(\hbox {S}_1\)

   Rhythm

8.34 (1.26)

4.90 (1.42)

0.41 (0.15)

8.32 (4.66)

   Tone

4.50 (0.96)

2.59 (0.73)

0.40 (0.20)

7.04 (4.66)

\(\hbox {S}_2\)

   Rhythm

8.52 (1.39)

5.21 (1.23)

0.39 (0.11)

6.96 (4.44)

   Tone

4.61 (0.77)

2.79 (0.83)

0.39 (0.19)

5.80 (4.44)

 \(\hbox {S}_3\)

   Rhythm

8.43 (1.48)

4.66 (1.32)

0.44 (0.15)

8.68 (4.52)

   Tone

4.61 (0.86)

2.65 (0.68)

0.41 (0.16)

10.92 (4.52)

 \(\hbox {S}_4\)

   Rhythm

8.42 (1.30)

4.59 (1.03)

0.45 (0.14)

8.96 (4.90)

   Tone

4.52 (0.95)

2.40 (0.68)

0.44 (0.20)

8.38 (4.90)

\(\hbox {R}_4\)

 \(\hbox {S}_1\)

   Rhythm

8.82 (1.17)

5.41 (1.39)

0.39 (0.14)

8.18 (4.13)

   Tone

4.81 (0.71)

2.73 (0.76)

0.42 (0.19)

6.18 (4.13)

\(\hbox {S}_2\)

   Rhythm

8.42 (1.45)

5.63 (1.52)

0.32 (0.17)

7.72 (4.93)

   Tone

4.59 (0.73)

2.97 (0.88)

0.34 (0.20)

4.54 (4.93)

\(\hbox {S}_3\)

   Rhythm

8.38 (1.37)

4.99 (1.35)

0.40 (0.15)

11.40 (5.37)

   Tone

4.48 (0.99)

2.63 (0.82)

0.39 (0.20)

7.50 (5.37)

 \(\hbox {S}_4\)

   Rhythm

8.30 (1.25)

4.49 (1.05)

0.45 (0.14)

9.36 (4.98)

   Tone

4.45 (0.81)

2.48 (0.79)

0.43 (0.20)

8.26 (4.98)