# Root-estimation on Fitted Q-regression Experiment 1 (scalar root experiment) (test)

Source: [Root-estimation on Fitted Q-regression Experiment 1 (scalar root experiment) (test)](<https://www.sota2.com/research/sota/root-estimation-on-fitted-q-regression-experiment-1-scalar-root-experiment-test>)

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

Data updated: 2026-05-21T13:15:38.876Z

Evaluation of Root-estimation performance on the test split of the Fitted Q-regression Experiment 1 (scalar root experiment) dataset, measured using RMSE and Monte Carlo 95% error bars.

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 | Root-estimation |
| Dataset (including any stated split) | Fitted Q-regression Experiment 1 (scalar root experiment) (test) |
| Metric | RMSE |
| Unit | SCALAR |
| Direction | Lower is better |
| Results loaded | 25 of 25 |
| 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

- [RMSE](<https://www.sota2.com/research/sota/root-estimation-on-fitted-q-regression-experiment-1-scalar-root-experiment-test.md?metric=RMSE>): Lower is better; unit: SCALAR.

- [MC 95% Error](<https://www.sota2.com/research/sota/root-estimation-on-fitted-q-regression-experiment-1-scalar-root-experiment-test.md?metric=MC%2095%25%20Error>): Lower is better; unit: SCALAR.

## Recorded results

| Method | RMSE | Result date | Report paper |
| --- | --- | --- | --- |
| OBiGrad | 0.0014 | Not recorded | 6a0e91c2f984739ed6738d8c |
| Oracle DR | 0.0014 | Not recorded | 6a0e91c2f984739ed6738d8c |
| PI | 0.0015 | Not recorded | 6a0e91c2f984739ed6738d8c |
| OBiGrad | 0.0019 | Not recorded | 6a0e91c2f984739ed6738d8c |
| Oracle DR | 0.0019 | Not recorded | 6a0e91c2f984739ed6738d8c |
| PI | 0.0023 | Not recorded | 6a0e91c2f984739ed6738d8c |
| OBiGrad | 0.0029 | Not recorded | 6a0e91c2f984739ed6738d8c |
| Oracle DR | 0.0029 | Not recorded | 6a0e91c2f984739ed6738d8c |
| PI | 0.0035 | Not recorded | 6a0e91c2f984739ed6738d8c |
| OBiGrad | 0.0038 | Not recorded | 6a0e91c2f984739ed6738d8c |
| Oracle DR | 0.0038 | Not recorded | 6a0e91c2f984739ed6738d8c |
| OBiGrad | 0.0056 | Not recorded | 6a0e91c2f984739ed6738d8c |
| Oracle DR | 0.0056 | Not recorded | 6a0e91c2f984739ed6738d8c |
| PI | 0.0056 | Not recorded | 6a0e91c2f984739ed6738d8c |
| PI | 0.0107 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO decaying λ | 0.0396 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO decaying λ | 0.0567 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO decaying λ | 0.0792 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO decaying λ | 0.1121 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO decaying λ | 0.166 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO fixed λ | 0.2386 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO fixed λ | 0.244 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO fixed λ | 0.2514 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO fixed λ | 0.261 | Not recorded | 6a0e91c2f984739ed6738d8c |
| KBO fixed λ | 0.292 | Not recorded | 6a0e91c2f984739ed6738d8c |

### OBiGrad

RMSE: 0.0014. Result ID: 6a0f049efbc373592c07c8ca.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"1600"}. This record does not assert independent reproduction.

### Oracle DR

RMSE: 0.0014. Result ID: 6a0f049efbc373592c07c8cb.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"1600"}. This record does not assert independent reproduction.

### PI

RMSE: 0.0015. Result ID: 6a0f049efbc373592c07c8c9.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76161e209131cea6b546.md>)

Recorded evaluation configuration: {"n":"1600"}. This record does not assert independent reproduction.

### OBiGrad

RMSE: 0.0019. Result ID: 6a0f049efbc373592c07c8c5.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"800"}. This record does not assert independent reproduction.

### Oracle DR

RMSE: 0.0019. Result ID: 6a0f049efbc373592c07c8c6.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"800"}. This record does not assert independent reproduction.

### PI

RMSE: 0.0023. Result ID: 6a0f049efbc373592c07c8c4.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76161e209131cea6b546.md>)

Recorded evaluation configuration: {"n":"800"}. This record does not assert independent reproduction.

### OBiGrad

RMSE: 0.0029. Result ID: 6a0f049efbc373592c07c8c0.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"400"}. This record does not assert independent reproduction.

### Oracle DR

RMSE: 0.0029. Result ID: 6a0f049efbc373592c07c8c1.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"400"}. This record does not assert independent reproduction.

### PI

RMSE: 0.0035. Result ID: 6a0f049efbc373592c07c8bf.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76161e209131cea6b546.md>)

Recorded evaluation configuration: {"n":"400"}. This record does not assert independent reproduction.

### OBiGrad

RMSE: 0.0038. Result ID: 6a0f049efbc373592c07c8bb.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"200"}. This record does not assert independent reproduction.

### Oracle DR

RMSE: 0.0038. Result ID: 6a0f049efbc373592c07c8bc.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"200"}. This record does not assert independent reproduction.

### OBiGrad

RMSE: 0.0056. Result ID: 6a0f049efbc373592c07c8b6.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"100"}. This record does not assert independent reproduction.

### Oracle DR

RMSE: 0.0056. Result ID: 6a0f049efbc373592c07c8b7.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

Recorded evaluation configuration: {"n":"100"}. This record does not assert independent reproduction.

### PI

RMSE: 0.0056. Result ID: 6a0f049efbc373592c07c8ba.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76161e209131cea6b546.md>)

Recorded evaluation configuration: {"n":"200"}. This record does not assert independent reproduction.

### PI

RMSE: 0.0107. Result ID: 6a0f049efbc373592c07c8b5.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa76161e209131cea6b546.md>)

Recorded evaluation configuration: {"n":"100"}. This record does not assert independent reproduction.

### KBO decaying λ

RMSE: 0.0396. Result ID: 6a0f049efbc373592c07c8cd.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"1600"}. This record does not assert independent reproduction.

### KBO decaying λ

RMSE: 0.0567. Result ID: 6a0f049efbc373592c07c8c8.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"800"}. This record does not assert independent reproduction.

### KBO decaying λ

RMSE: 0.0792. Result ID: 6a0f049efbc373592c07c8c3.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"400"}. This record does not assert independent reproduction.

### KBO decaying λ

RMSE: 0.1121. Result ID: 6a0f049efbc373592c07c8be.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"200"}. This record does not assert independent reproduction.

### KBO decaying λ

RMSE: 0.166. Result ID: 6a0f049efbc373592c07c8b9.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"100"}. This record does not assert independent reproduction.

### KBO fixed λ

RMSE: 0.2386. Result ID: 6a0f049efbc373592c07c8cc.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"1600"}. This record does not assert independent reproduction.

### KBO fixed λ

RMSE: 0.244. Result ID: 6a0f049efbc373592c07c8c7.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"800"}. This record does not assert independent reproduction.

### KBO fixed λ

RMSE: 0.2514. Result ID: 6a0f049efbc373592c07c8c2.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"400"}. This record does not assert independent reproduction.

### KBO fixed λ

RMSE: 0.261. Result ID: 6a0f049efbc373592c07c8bd.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"200"}. This record does not assert independent reproduction.

### KBO fixed λ

RMSE: 0.292. Result ID: 6a0f049efbc373592c07c8b8.

[Reporting paper](<https://www.sota2.com/research/paper/6a0e91c2f984739ed6738d8c.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bc11e209131cea8a33c.md>)

Recorded evaluation configuration: {"n":"100"}. This record does not assert independent reproduction.

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