# Sentiment Analysis on Amazon Reviews 31

Source: [Sentiment Analysis on Amazon Reviews 31](<https://www.sota2.com/research/sota/sentiment-analysis-on-amazon-reviews-31>)

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

Data updated: 2026-05-25T07:37:14.764Z

Evaluation of Sentiment Analysis performance on the Amazon Reviews 31 dataset, measured using MCI (%pt.).

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 | Sentiment Analysis |
| Dataset (including any stated split) | Amazon Reviews 31 |
| Metric | MCI |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 16 of 16 |
| 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

- [MCI](<https://www.sota2.com/research/sota/sentiment-analysis-on-amazon-reviews-31.md?metric=MCI>): Higher is better; unit: SCALAR.

## Recorded results

| Method | MCI | Result date | Report paper |
| --- | --- | --- | --- |
| LogME | 22.57 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| LogME | 20.91 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| S-OTDD | 19.69 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| TransRate | 19.48 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| S-OTDD | 15.63 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| TransRate | 12.47 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| NCE | 5.71 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| H-Score | 3.35 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| Reg. H-Score | 3.35 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| RADAR | 3.21 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| LEEP | 1.91 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| LEEP | 1.76 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| RADAR | 1.23 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| H-Score | -6.84 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| Reg. H-Score | -6.91 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |
| NCE | -7.6 | Not recorded | 6a13d7896f71c5ae7dc9e8a4 |

### LogME

MCI: 22.57. Result ID: 6a13fbf1fbc373592c0ad2c1.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a381e209131cea26a62.md>)

[Implementation](<https://github.com/thuml/LogME>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### LogME

MCI: 20.91. Result ID: 6a13fbf1fbc373592c0ad2c2.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a381e209131cea26a62.md>)

[Implementation](<https://github.com/thuml/LogME>)

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

### S-OTDD

MCI: 19.69. Result ID: 6a13fbf1fbc373592c0ad2c8.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78951e209131cea79140.md>)

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

### TransRate

MCI: 19.48. Result ID: 6a13fbf1fbc373592c0ad2c6.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6cf91e209131cea37035.md>)

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

### S-OTDD

MCI: 15.63. Result ID: 6a13fbf1fbc373592c0ad2c7.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78951e209131cea79140.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### TransRate

MCI: 12.47. Result ID: 6a13fbf1fbc373592c0ad2c5.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6cf91e209131cea37035.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### NCE

MCI: 5.71. Result ID: 6a13fbf1fbc373592c0ad2c4.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa66391e209131cea0eecb.md>)

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

### H-Score

MCI: 3.35. Result ID: 6a13fbf1fbc373592c0ad2be.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e3a1e209131cea3e7df.md>)

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

### Reg. H-Score

MCI: 3.35. Result ID: 6a13fbf1fbc373592c0ad2c0.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f7e1e209131cea45f4e.md>)

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

### RADAR

MCI: 3.21. Result ID: 6a13fbf1fbc373592c0ad2c9.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### LEEP

MCI: 1.91. Result ID: 6a13fbf1fbc373592c0ad2bc.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa682f1e209131cea1a9fc.md>)

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

### LEEP

MCI: 1.76. Result ID: 6a13fbf1fbc373592c0ad2bb.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa682f1e209131cea1a9fc.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### RADAR

MCI: 1.23. Result ID: 6a13fbf1fbc373592c0ad2ca.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

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

### H-Score

MCI: -6.84. Result ID: 6a13fbf1fbc373592c0ad2bd.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e3a1e209131cea3e7df.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### Reg. H-Score

MCI: -6.91. Result ID: 6a13fbf1fbc373592c0ad2bf.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f7e1e209131cea45f4e.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

### NCE

MCI: -7.6. Result ID: 6a13fbf1fbc373592c0ad2c3.

[Reporting paper](<https://www.sota2.com/research/paper/6a13d7896f71c5ae7dc9e8a4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa66391e209131cea0eecb.md>)

Recorded evaluation configuration: {"Backbone Model":"Qwen3-Embedding"}. This record does not assert independent reproduction.

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