README.md

metadata

annotations_creators:
  - expert-generated
language_creators:
  - expert-generated
language:
  - nb
  - nn
license: cc-by-4.0
multilinguality:
  - translation
pretty_name: Nynorsk Norm 200eval
size_categories:
  - 1K<n<10K
source_datasets:
  - original
task_categories:
  - translation
task_ids:
  - text2text-generation

Nynorsk Norm 200eval

nynorsk_norm_200eval is a high-quality, small-scale parallel corpus comprising 200 Norwegian Bokmål–Nynorsk sentence pairs collected from official sources and public institutions. Each example includes:

• nb: Original sentence in Bokmål
• nn_original: Original Nynorsk sentence (typically an official translation)
• nn_alt_original: Original Nynorsk sentence (typically an official translation) - alt version
• nn_husnorm: Sentence rewritten in Nynorsk following an internal husnorm (house style)
• nb_source, nn_source: Source URLs for the Bokmål and Nynorsk versions

Benchmark

Target: nn_original (official Nynorsk)

Model	BLEU	chrF	Notes
ExampleModel-v1	XX.X	XX.X	Official translation baseline
ExampleModel-v2	XX.X	XX.X	Fine-tuned on government data

Target: nn_husnorm (house style Nynorsk)

Model	BLEU	chrF	Notes
ExampleModel-v1	XX.X	XX.X	Without style normalization
ExampleModel-v2	XX.X	XX.X	Fine-tuned on husnorm corpus

Will be replaced with real numbers as soon as we have performed the tests.

Intended Uses

This dataset is intended for:

• Evaluation of Bokmål-to-Nynorsk translation systems
• Research on Nynorsk stylistic variation
• Style transfer and normalization experiments, especially in public communication

Format

The dataset is provided as a UTF-8 encoded JSON Lines (.jsonl) file. Each line is a structured example:

{
  "nb": "Ledelsen ved NMBU disponerer i dag to elbiler som de kan bruke på møter i nærområdet.",
  "nn_original": "Leiinga ved NMBU disponerer i dag to elbilar som dei kan bruka på møte i nærområdet.",
  "nn_husnorm": "Leiinga ved NMBU disponerer i dag to elbilar som dei kan bruke på møte i nærområdet.",
  "nb_source": "https://www.nmbu.no/om/miljoarbeidet/milj-rsrapport-2020",
  "nn_source": "https://www.nmbu.no/om/miljoarbeidet/miljotiltak"
}

Nynorsk house style ("husnorm")

The nn_husnorm field contains Nynorsk text rewritten according to an internal style guide. This house norm favors Bokmål-near variants for improved consistency and accessibility in public texts.

General characteristics:

• Use of samsvarsbøying (agreement)
• Prefer active voice where natural
• Rewrite s-genitive using prepositions, compounds, or possessives (sin/si)
• Use e-infinitive: å komme (not å kome)
• Use bli, blei, blitt (not verte, vart, vorte)
• Pronouns: vi, ho, henne (not me, ho, henne)
• Adverbs: nå, da, derfor, fordi (not no, då, difor, av di)
• Noun plural forms:
  • gjestar, nadar instead of gjester, nader
  • elver, helger instead of elvar, helgar
• Bokmål-like variants of verbs and nouns:
  • følge, givar, følgar over følgje, gjevar, følgjar
• Prefer forelesing, foreslå over førelesing, føreslå
• Use doubled consonants: komme, lønne (not kome, løne)
• Lexical choices like nødvendig, allmente are accepted

Authors

• Husnorm adaptation and linguistic quality control: Arne Martinus Lidstad and Marie Røsok
• Dataset formatting and Hugging Face integration: Per Egil Kummervold