# Open-ended Question Answering on TREC-DL-NF (S5) Source: [Open-ended Question Answering on TREC-DL-NF (S5)]() Collection index: [llms.txt]() Data updated: 2026-02-26T05:47:53.664Z Evaluation of model performance on the TREC-DL-NF (S5) dataset for open-ended question answering capabilities, typically measured using ranking correlation metrics. A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. | Scope | Recorded value | | --- | --- | | Task | Open-ended Question Answering | | Dataset (including any stated split) | TREC-DL-NF (S5) | | Metric | Kendall's Tau (K) | | Unit | SCALAR | | Direction | Higher is better | | Results loaded | 11 of 11 | | Coverage | All results currently returned for this benchmark | Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol. ## Metrics - [Kendall's Tau (K)](): Higher is better; unit: SCALAR. - [Spearman's Rho (S)](): Higher is better; unit: SCALAR. - [RBO (p=0.5)](): Higher is better; unit: SCALAR. - [RBO (p=0.9)](): Higher is better; unit: SCALAR. ## Recorded results | Method | Kendall's Tau (K) | Result date | Report paper | | --- | --- | --- | --- | | MinosEval | 68.61 | Not recorded | 68fa797f1e209131cea7dd11 | | Listwise | 65.82 | Not recorded | 68fa797f1e209131cea7dd11 | | LINKAGE | 65.58 | Not recorded | 68fa797f1e209131cea7dd11 | | MinosEval | 65.45 | Not recorded | 68fa797f1e209131cea7dd11 | | Pairwise | 63.21 | Not recorded | 68fa797f1e209131cea7dd11 | | Pointwise | 54.79 | Not recorded | 68fa797f1e209131cea7dd11 | | PEDANTS | 48.12 | Not recorded | 68fa797f1e209131cea7dd11 | | BEM | 46.42 | Not recorded | 68fa797f1e209131cea7dd11 | | BERTScore | 44.62 | Not recorded | 68fa797f1e209131cea7dd11 | | ROUGE-L | 34.56 | Not recorded | 68fa797f1e209131cea7dd11 | | BLEU | 28.11 | Not recorded | 68fa797f1e209131cea7dd11 | ### MinosEval Kendall's Tau (K): 68.61. Result ID: 698b4feb8d67a41d0a6cfccc. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"manual\_classification":true}. This record does not assert independent reproduction. ### Listwise Kendall's Tau (K): 65.82. Result ID: 698b4feb8d67a41d0a6cfcc9. [Reporting paper]() Recorded evaluation configuration: {"type":"Naive LLM Evaluation"}. This record does not assert independent reproduction. ### LINKAGE Kendall's Tau (K): 65.58. Result ID: 698b4feb8d67a41d0a6cfcca. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"Others"}. This record does not assert independent reproduction. ### MinosEval Kendall's Tau (K): 65.45. Result ID: 698b4feb8d67a41d0a6cfccb. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"manual\_classification":false}. This record does not assert independent reproduction. ### Pairwise Kendall's Tau (K): 63.21. Result ID: 698b4feb8d67a41d0a6cfcc8. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"Naive LLM Evaluation"}. This record does not assert independent reproduction. ### Pointwise Kendall's Tau (K): 54.79. Result ID: 698b4feb8d67a41d0a6cfcc7. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"Naive LLM Evaluation"}. This record does not assert independent reproduction. ### PEDANTS Kendall's Tau (K): 48.12. Result ID: 698b4feb8d67a41d0a6cfcc6. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"LM-based Metrics"}. This record does not assert independent reproduction. ### BEM Kendall's Tau (K): 46.42. Result ID: 698b4feb8d67a41d0a6cfcc5. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"LM-based Metrics"}. This record does not assert independent reproduction. ### BERTScore Kendall's Tau (K): 44.62. Result ID: 698b4feb8d67a41d0a6cfcc4. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"type":"LM-based Metrics"}. This record does not assert independent reproduction. ### ROUGE-L Kendall's Tau (K): 34.56. Result ID: 698b4feb8d67a41d0a6cfcc3. [Reporting paper]() Recorded evaluation configuration: {"type":"Automatic Metrics"}. This record does not assert independent reproduction. ### BLEU Kendall's Tau (K): 28.11. Result ID: 698b4feb8d67a41d0a6cfcc2. [Reporting paper]() Recorded evaluation configuration: {"type":"Automatic Metrics"}. This record does not assert independent reproduction. Page 1 of 1. This is an index page, not the full collection.