much baseline diff compared rankllama

[stanpcf]

such as BM25'avg in beir should be 43.7

[zlh-source]

1. The Parameter Configurations of the paper RankT5 shows that RankT5 uses T5-large (770M) for initialization.

2. The results in Tables 3 and 4 in our paper are both ranking the top 1000 documents retrieved by BM25. According to our email communication with the authors of RankLLaMA, the RankLLaMA results in their paper are based on the top 100 documents retrieved by RepLLaMA.

3. The performance of RankLLaMA in our paper can be reproduced through the official script.