# Sparse retrieval-style question answering on RULER synthetic QA (standard)

Source: [Sparse retrieval-style question answering on RULER synthetic QA (standard)](<https://www.sota2.com/research/sota/sparse-retrieval-style-question-answering-on-ruler-synthetic-qa-standard>)

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

Data updated: 2026-06-04T08:49:50.876Z

Evaluation of sparse retrieval-style question answering performance on the standard split of the RULER synthetic QA dataset, reporting F1 score.

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 | Sparse retrieval-style question answering |
| Dataset (including any stated split) | RULER synthetic QA (standard) |
| Metric | F1 Score |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 4 of 4 |
| 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

- [F1 Score](<https://www.sota2.com/research/sota/sparse-retrieval-style-question-answering-on-ruler-synthetic-qa-standard.md?metric=F1%20Score>): Higher is better; unit: PERCENT.

## Recorded results

| Method | F1 Score | Result date | Report paper |
| --- | --- | --- | --- |
| InfoMem | 0.36848 | Not recorded | 6a210666c10484bac23eff3b |
| Outcome-only GRPO | 0.34735 | Not recorded | 6a210666c10484bac23eff3b |
| ReMemR1 | 0.28919 | Not recorded | 6a210666c10484bac23eff3b |
| Qwen2.5-1.5B-Instruct | 0.13308 | Not recorded | 6a210666c10484bac23eff3b |

### InfoMem

F1 Score: 0.36848. Result ID: 6a213c25fbc373592c1ce433.

[Reporting paper](<https://www.sota2.com/research/paper/6a210666c10484bac23eff3b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a210666c10484bac23eff3b.md>)

Recorded evaluation configuration: {"base\_model":"Qwen2.5-1.5B-Instruct","beta":"0.2"}. This record does not assert independent reproduction.

### Outcome-only GRPO

F1 Score: 0.34735. Result ID: 6a213c25fbc373592c1ce432.

[Reporting paper](<https://www.sota2.com/research/paper/6a210666c10484bac23eff3b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa79c71e209131cea7f569.md>)

Recorded evaluation configuration: {"base\_model":"Qwen2.5-1.5B-Instruct"}. This record does not assert independent reproduction.

### ReMemR1

F1 Score: 0.28919. Result ID: 6a213c25fbc373592c1ce434.

[Reporting paper](<https://www.sota2.com/research/paper/6a210666c10484bac23eff3b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bb51e209131cea8a113.md>)

Recorded evaluation configuration: {"base\_model":"Qwen2.5-1.5B-Instruct","retrieval":"callback retrieval","framework":"chunk-wise memory-agent"}. This record does not assert independent reproduction.

### Qwen2.5-1.5B-Instruct

F1 Score: 0.13308. Result ID: 6a213c25fbc373592c1ce431.

[Reporting paper](<https://www.sota2.com/research/paper/6a210666c10484bac23eff3b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa767e1e209131cea6d6a7.md>)

Recorded evaluation configuration: {"status":"Base Model"}. This record does not assert independent reproduction.

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