How do I score machine-generated subtitle files (not just text) against a reference, what does SubER measure, and how far has it been validated?
SubER scores a subtitle file against a reference including text, line breaks and timing (SRT input; Apache-2.0 code); its authors give a rule of thumb (<20% very good, >40-50% bad). In IWSLT 2024 human judgments for translation-focused DA agreed more with BLEURT than SubER (producer reading), so its validation depends on the evaluation target.
SubER scores a subtitle file against a reference including text, line breaks and timing (SRT input; Apache-2.0 code); its authors give a rule of thumb (<20% very good, >40-50% bad). In IWSLT 2024 human judgments for translation-focused DA agreed more with BLEURT than SubER (producer reading), so its validation depends on the evaluation target.
Curator qualifications: Documents read 2026-10-22; no subtitles scored or rendered. Paper tables and IWSLT 2024 findings not re-read by curator.
Limitations: Documents read 2026-10-22; no subtitles scored or rendered.
Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
"citations": [
{
"url": "https://arxiv.org/abs/2205.05805",
"note": "apptek/SubER README at 3395bfec (raw); apptek/SubER LICENSE at 3395bfec (raw)"
},
{
"url": "https://github.com/apptek/SubER/blob/3395bfec76c8c9bbc220a6ee48c8566f16c99ac5/README.md",
"note": "apptek/SubER README at 3395bfec (raw); apptek/SubER LICENSE at 3395bfec (raw)"
},
{
"url": "https://github.com/apptek/SubER/blob/3395bfec76c8c9bbc220a6ee48c8566f16c99ac5/LICENSE",
"note": "apptek/SubER README at 3395bfec (raw); apptek/SubER LICENSE at 3395bfec (raw)"
},
{
"url": "https://aclanthology.org/2024.iwslt-1.1.pdf",
"note": "apptek/SubER README at 3395bfec (raw); apptek/SubER LICENSE at 3395bfec (raw)"
}
]
}Evidence claims
- [sourced_fact] SubER scores a subtitle file against a reference including text, line breaks and timing (SRT input; Apache-2.0 code); its authors give a rule of thumb (<20% very good, >40-50% bad). In IWSLT 2024 human judgments for translation-focused DA agreed more with BLEURT than SubER (producer reading), so its validation depends on the evaluation target. · locator: apptek/SubER README at 3395bfec (raw); apptek/SubER LICENSE at 3395bfec (raw) source
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| documentation | unknown | permitted | permitted | unknown | unknown | Applies to this original summary only, not to the cited sources. |