# Density Estimation on 20Newsgrp (test)

Source: [Density Estimation on 20Newsgrp (test)](<https://www.sota2.com/research/sota/density-estimation-on-20newsgrp-test>)

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

Data updated: 2026-02-26T05:48:42.963Z

Evaluation of Density Estimation performance on the test split of the 20Newsgrp dataset, measured using Log-Likelihood (Log-LH).

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 | Density Estimation |
| Dataset (including any stated split) | 20Newsgrp (test) |
| Metric | Log-Likelihood |
| 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

- [Log-Likelihood](<https://www.sota2.com/research/sota/density-estimation-on-20newsgrp-test.md?metric=Log-Likelihood>): Higher is better; unit: SCALAR.

## Recorded results

| Method | Log-Likelihood | Result date | Report paper |
| --- | --- | --- | --- |
| RAT-SPN | -152.06 | Not recorded | 68fa6b621e209131cea2de8f |
| HyperSPN | -152.49 | Not recorded | 68fa6b621e209131cea2de8f |
| SPN + Weight Decay | -154.36 | Not recorded | 68fa6b621e209131cea2de8f |
| EiNETs | -154.41 | Not recorded | 68fa6b621e209131cea2de8f |

### RAT-SPN

Log-Likelihood: -152.06. Result ID: 698e8414ffc3901de09e41f0.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6b621e209131cea2de8f.md>)

Recorded evaluation configuration: {"Optimizer":"sEM†","Architecture":"RAT-SPN"}. This record does not assert independent reproduction.

### HyperSPN

Log-Likelihood: -152.49. Result ID: 698e8414ffc3901de09e41ee.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6b621e209131cea2de8f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6b621e209131cea2de8f.md>)

[Implementation](<https://github.com/AndyShih12/HyperSPN>)

Recorded evaluation configuration: {"Optimizer":"Adam","Regularization Strategy":"HyperSPN","Architecture":"SPN","# Params":"456115"}. This record does not assert independent reproduction.

### SPN + Weight Decay

Log-Likelihood: -154.36. Result ID: 698e8414ffc3901de09e41ed.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6b621e209131cea2de8f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a281e209131cea2670f.md>)

Recorded evaluation configuration: {"Optimizer":"Adam","Regularization Strategy":"Weight Decay","Architecture":"SPN","# Params":"2275050"}. This record does not assert independent reproduction.

### EiNETs

Log-Likelihood: -154.41. Result ID: 698e8414ffc3901de09e41ef.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6b621e209131cea2de8f.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa675d1e209131cea15e1f.md>)

Recorded evaluation configuration: {"Optimizer":"Adam\*","Architecture":"EiNETs"}. This record does not assert independent reproduction.

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