# Regime-classification on HadISST (1870–2022)

Source: [Regime-classification on HadISST (1870–2022)](<https://www.sota2.com/research/sota/regime-classification-on-hadisst-1870-2022>)

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

Data updated: 2026-06-17T07:11:24.620Z

Evaluation of model performance on the HadISST (1870–2022) dataset for regime classification, measured using AUROC, AUPRC, and IoU.

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 | Regime-classification |
| Dataset (including any stated split) | HadISST (1870–2022) |
| Metric | AUROC |
| Unit | SCALAR |
| 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

- [AUROC](<https://www.sota2.com/research/sota/regime-classification-on-hadisst-1870-2022.md?metric=AUROC>): Higher is better; unit: SCALAR.

- [AUPRC](<https://www.sota2.com/research/sota/regime-classification-on-hadisst-1870-2022.md?metric=AUPRC>): Higher is better; unit: SCALAR.

- [IoU](<https://www.sota2.com/research/sota/regime-classification-on-hadisst-1870-2022.md?metric=IoU>): Higher is better; unit: PERCENT.

## Recorded results

| Method | AUROC | Result date | Report paper |
| --- | --- | --- | --- |
| ST-CND | 0.783 | Not recorded | 6a3229f7d33dfb23e783e9f9 |
| Classical EWS (var, AC1) | 0.681 | Not recorded | 6a3229f7d33dfb23e783e9f9 |
| λ-AR1 | 0.596 | Not recorded | 6a3229f7d33dfb23e783e9f9 |
| Recurrence-net | 0.5 | Not recorded | 6a3229f7d33dfb23e783e9f9 |

### ST-CND

AUROC: 0.783. Result ID: 6a32483efbc373592c2f508d.

[Reporting paper](<https://www.sota2.com/research/paper/6a3229f7d33dfb23e783e9f9.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a3229f7d33dfb23e783e9f9.md>)

Recorded evaluation configuration: {"Output":"directed topology"}. This record does not assert independent reproduction.

### Classical EWS (var, AC1)

AUROC: 0.681. Result ID: 6a32483efbc373592c2f508a.

[Reporting paper](<https://www.sota2.com/research/paper/6a3229f7d33dfb23e783e9f9.md>)

Recorded evaluation configuration: Not recorded. This record does not assert independent reproduction.

### λ-AR1

AUROC: 0.596. Result ID: 6a32483efbc373592c2f508c.

[Reporting paper](<https://www.sota2.com/research/paper/6a3229f7d33dfb23e783e9f9.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa441a1e209131ce90ebf2.md>)

Recorded evaluation configuration: Not recorded. This record does not assert independent reproduction.

### Recurrence-net

AUROC: 0.5. Result ID: 6a32483efbc373592c2f508b.

[Reporting paper](<https://www.sota2.com/research/paper/6a3229f7d33dfb23e783e9f9.md>)

Recorded evaluation configuration: {"Output":"undirected"}. This record does not assert independent reproduction.

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