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Impact of removing the unlikelihood objective from Equation 1 on the top-ranked summary ROUGE scores and on average adherence to the content plan.
| Top Ranked | Plan Adherence | |||||
|---|---|---|---|---|---|---|
| Method | R1 | R2 | RL | R | P | F1 |
| PGA (ours) | 47.59 | 23.81 | 44.33 | 87.1 | 78.6 | 81.5 |
| w/o Unlike | 47.43 | 23.48 | 44.16 | 87.2 | 76.5 | 80.3 |
