Datasets:
language:
- uk
license: cc-by-4.0
task_categories:
- text-generation
task_ids:
- language-modeling
tags:
- ukrainian
- social
- telegram
- reddit
- nlp
- corpus
size_categories:
- 100K<n<1M
UkrLM Social Corpus
A curated corpus of Ukrainian-language text collected from public social media platforms, designed for language model pretraining and fine-tuning.
This dataset is part of the UkrLM initiative — an open effort to build foundational NLP resources for the Ukrainian language.
Overview
| Property | Value |
|---|---|
| Language | Ukrainian (uk) |
| Sources | Telegram, Reddit |
| License | CC BY 4.0 |
| Format | Parquet |
| Task | Language Modeling |
Sources
Telegram — public Ukrainian-language channels covering analysis, culture, and community discussion.
Reddit — public posts and comments from Ukrainian-language and Ukraine-focused subreddits including r/ukraine, r/ukr, and others.
Processing Pipeline
Raw text was passed through a multi-stage cleaning pipeline before inclusion:
Language & quality filtering
- Ukrainian only — pre-filtered at collection time
- Minimum 15 characters, maximum 10 000 characters
- Minimum 35% alphabetic character ratio
- Minimum 5 Cyrillic characters per record
- Records consisting primarily of anonymization tokens are discarded
Noise removal
- Markdown stripped:
**bold**,_italic_,~~strikethrough~~,> quotes, headings, inline code - Ad tails removed line-by-line from the bottom of posts (channel promotions, social links)
- Emoji-heavy lines removed (>50% emoji by character count)
- Separator lines removed:
————,___, etc. - HTML entities decoded:
>→>,&→&, etc.
Anonymization
- Person names -
<PERSON> - Usernames -
<USER> - Phone numbers -
<PHONE> - Card numbers -
<CARD> - Email addresses -
<EMAIL> - URLs -
<URL>
Deduplication
- Exact match deduplication on lowercased, whitespace-normalized text
Format
Each record is a flat object with the following fields:
{"text": "...", "source": "telegram", "channel": "nazva_kanalu", "date": "2025-08-05T16:19:38+00:00", "lang": "uk"}
{"text": "...", "source": "reddit", "subreddit": "ukraine", "date": "2024-11-12T10:00:00+00:00", "score": 42, "lang": "uk"}
| Field | Description |
|---|---|
text |
Cleaned Ukrainian text |
source |
Origin platform: telegram or reddit |
channel |
Telegram channel identifier (telegram only) |
subreddit |
Subreddit name (reddit only) |
date |
ISO 8601 timestamp (may be empty) |
score |
Reddit upvote score (reddit only) |
lang |
Language code — always uk |
Part of UkrLM
This dataset is one component of the broader UkrLM project, which aims to produce open Ukrainian-language datasets and eventually a trained language model.
Related datasets in this initiative:
ruvimx/UkrLM-social— social corpus (this dataset)ruvimx/UkrLM-wiki— Ukrainian Wikipedia
License
This dataset is released under Creative Commons Attribution 4.0 International (CC BY 4.0) for research purposes.
Source platforms (Telegram, Reddit) retain their own terms of service over the original content.
Built with ❤️ for the Ukrainian NLP community.