# Action Recognition on 20BN V2

Source: [Action Recognition on 20BN V2](<https://www.sota2.com/research/sota/action-recognition-on-20bn-v2>)

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

Data updated: 2026-02-26T06:06:56.131Z

Evaluation of Action Recognition performance on the 20BN V2 dataset, typically using Top-1 and Top-5 accuracy.

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 | Action recognition |
| Dataset (including any stated split) | 20BN V2 |
| Metric | Top-1 Accuracy |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 7 of 7 |
| 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

- [Top-1 Accuracy](<https://www.sota2.com/research/sota/action-recognition-on-20bn-v2.md?metric=Top-1%20Accuracy>): Higher is better; unit: PERCENT.

- [Top-5 Accuracy](<https://www.sota2.com/research/sota/action-recognition-on-20bn-v2.md?metric=Top-5%20Accuracy>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Top-1 Accuracy | Result date | Report paper |
| --- | --- | --- | --- |
| TRN RGB+Flow | 55.5 | Not recorded | 68fa68261e209131cea1a448 |
| Prob-Distill+Flow I3D | 54.6 | Not recorded | 68fa68261e209131cea1a448 |
| Two Stream I3D | 53.7 | Not recorded | 68fa68261e209131cea1a448 |
| Prob-Distill | 49.9 | Not recorded | 68fa68261e209131cea1a448 |
| TRN RGB | 48.8 | Not recorded | 68fa68261e209131cea1a448 |
| I3D RGB | 47.3 | Not recorded | 68fa68261e209131cea1a448 |
| I3D Flow | 46.7 | Not recorded | 68fa68261e209131cea1a448 |

### TRN RGB+Flow

Top-1 Accuracy: 55.5. Result ID: 698d5c738b517eb43320eb63.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa649b1e209131cea057a5.md>)

[Implementation](<http://relation.csail.mit.edu/>)

Recorded evaluation configuration: {"Temporal Footprints":"5 sec"}. This record does not assert independent reproduction.

### Prob-Distill+Flow I3D

Top-1 Accuracy: 54.6. Result ID: 698d5c738b517eb43320eb68.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Implementation](<https://aptx4869lm.github.io/AttentionDistillation/>)

Recorded evaluation configuration: {"Temporal Footprints":"1 sec"}. This record does not assert independent reproduction.

### Two Stream I3D

Top-1 Accuracy: 53.7. Result ID: 698d5c738b517eb43320eb67.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa64051e209131cea020a8.md>)

Recorded evaluation configuration: {"Temporal Footprints":"1 sec"}. This record does not assert independent reproduction.

### Prob-Distill

Top-1 Accuracy: 49.9. Result ID: 698d5c738b517eb43320eb66.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Implementation](<https://aptx4869lm.github.io/AttentionDistillation/>)

Recorded evaluation configuration: {"Temporal Footprints":"1 sec"}. This record does not assert independent reproduction.

### TRN RGB

Top-1 Accuracy: 48.8. Result ID: 698d5c738b517eb43320eb62.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa649b1e209131cea057a5.md>)

[Implementation](<http://relation.csail.mit.edu/>)

Recorded evaluation configuration: {"Temporal Footprints":"5 sec"}. This record does not assert independent reproduction.

### I3D RGB

Top-1 Accuracy: 47.3. Result ID: 698d5c738b517eb43320eb64.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa64051e209131cea020a8.md>)

Recorded evaluation configuration: {"Temporal Footprints":"1 sec"}. This record does not assert independent reproduction.

### I3D Flow

Top-1 Accuracy: 46.7. Result ID: 698d5c738b517eb43320eb65.

[Reporting paper](<https://www.sota2.com/research/paper/68fa68261e209131cea1a448.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa64051e209131cea020a8.md>)

Recorded evaluation configuration: {"Temporal Footprints":"1 sec"}. This record does not assert independent reproduction.

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