. Author manuscript; available in PMC: 2024 May 20.

Published in final edited form as: Proc Conf Assoc Comput Linguist Meet. 2023 Jul;2023:2680–2697. doi: 10.18653/v1/2023.acl-long.151

Table 5:

ROUGE-1 F1 for top-ranked summaries on the CNN/DM test set binned into quartiles by summary length.

`Method`	`Q1`	`Q2`	`Q3`	`Q4`	`Avg`
`Beam`	47.8	46.2	44.5	42.6	45.3
`Diverse Beam`	49.2	48.0	46.0	44.7	47.0
`Nucleus`	48.7	47.5	45.7	44.3	46.6
`Baseline Avg`	48.6	47.2	45.5	43.9	46.3
`PGA (ours)`	50.1	48.5	46.5	45.3	47.6
`Avg % Gain`	3.09	2.75	2.20	3.19	2.81