# Multi-hop Question Answering on OTT-QA full (val)

Source: [Multi-hop Question Answering on OTT-QA full (val)](<https://www.sota2.com/research/sota/multi-hop-question-answering-on-ott-qa-full-val>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-02-26T05:41:38.358Z

Evaluation of model performance on the validation split of the OTT-QA dataset specifically for Multi-hop Question Answering, typically measured using Exact Match (EM) and F1 scores.

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 | Multi-hop Question Answering |
| Dataset (including any stated split) | OTT-QA full (val) |
| Metric | EM |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 5 of 5 |
| 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

- [EM](<https://www.sota2.com/research/sota/multi-hop-question-answering-on-ott-qa-full-val.md?metric=EM>): Higher is better; unit: PERCENT.

- [F1](<https://www.sota2.com/research/sota/multi-hop-question-answering-on-ott-qa-full-val.md?metric=F1>): Higher is better; unit: PERCENT.

## Recorded results

| Method | EM | Result date | Report paper |
| --- | --- | --- | --- |
| COS | 56.9 | Not recorded | 6965d1676343fa78c832337b |
| CORE | 49 | Not recorded | 6965d1676343fa78c832337b |
| CARP | 33.2 | Not recorded | 6965d1676343fa78c832337b |
| Fusion+Cross-Reader | 28.1 | Not recorded | 6965d1676343fa78c832337b |
| BM25-HYBRIDER | 10.3 | Not recorded | 6965d1676343fa78c832337b |

### COS

EM: 56.9. Result ID: 699691595698665ec4da6734.

[Reporting paper](<https://www.sota2.com/research/paper/6965d1676343fa78c832337b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f7f1e209131cea45fd0.md>)

[Implementation](<https://github.com/Mayer123/UDT-QA>)

Recorded evaluation configuration: {"fine-tuning":"true"}. This record does not assert independent reproduction.

### CORE

EM: 49. Result ID: 699691595698665ec4da6733.

[Reporting paper](<https://www.sota2.com/research/paper/6965d1676343fa78c832337b.md>)

Recorded evaluation configuration: {"fine-tuning":"true"}. This record does not assert independent reproduction.

### CARP

EM: 33.2. Result ID: 699691595698665ec4da6732.

[Reporting paper](<https://www.sota2.com/research/paper/6965d1676343fa78c832337b.md>)

Recorded evaluation configuration: {"fine-tuning":"true"}. This record does not assert independent reproduction.

### Fusion+Cross-Reader

EM: 28.1. Result ID: 699691595698665ec4da6731.

[Reporting paper](<https://www.sota2.com/research/paper/6965d1676343fa78c832337b.md>)

Recorded evaluation configuration: {"fine-tuning":"true"}. This record does not assert independent reproduction.

### BM25-HYBRIDER

EM: 10.3. Result ID: 699691595698665ec4da6730.

[Reporting paper](<https://www.sota2.com/research/paper/6965d1676343fa78c832337b.md>)

Recorded evaluation configuration: {"fine-tuning":"true"}. This record does not assert independent reproduction.

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