BeamSize

Rouge-1

Rouge-2

Rouge-L

1

41.11%

23.79%

33.03%

2

40.46%

22.81%

32.56%

3

44.26%

23.97%

34.81%

4

40.95%

24.25%

35.58%

5

42.37%

23.99%

33.41%