The provided bar chart depicts the impact of length constraints divided into 3, 5 and 10 in a short-text generation study. This method uses PGraphRAG and tests based on three evaluation metrics on the provided datasets: ROUGE-1, ROUGE-L and METEOR.
Overall, the scores achieved by each metric vary differently across three length requirements, with ROUGE-1 taking the lead, followed by ROUGE-L in second position and METEOR in third place. Moreover, the length 10
With respect to the first sector, ROUGE-1, length 5 accounted for the highest candidate at almost 0.12, followed by length 10 with a considerably lower figure at 0.115. A similar hierarchy was evident in ROUGE-L, where length 5 reached 0.11 and length 10 stood at around 0.105. Length 3 was the lowest figure, at below 0.10 in this given metric.
Turning to the last sector, METEOR displayed a different pattern, with the figures forming a stepwise progression from left to right. The third place was length 3 at slightly above 0.05, with a 0.04 in weight compared to the ROUGE-L stage. Meanwhile, length 5 and length 10 both experienced a familiar downward trend, dropping its figure to approximately 0.08 and 0.11 respectively.