A unified parallel-translation dataset assembled from the sources catalogued in Datasets_chagatai_final(1) (1).xlsx. Every underlying corpus is normalised to a single flat schema so it can be loaded and mixed in one line.

Schema

column	type	description
`src_text`	string	segment in the source language
`tgt_text`	string	its translation in the target language
`src_lang`	string	source language code (normalised, see below)
`tgt_lang`	string	target language code (normalised)
`source`	string	which underlying dataset the pair came from

Language codes are normalised to short ISO-639 forms: ar Arabic, ru Russian, en English, fa Persian, kk Kazakh, tk Turkmen, tr Turkish, ug Uyghur, uz Uzbek (Northern/Latin), uzs Uzbek (Southern/Arabic script), azb South Azerbaijani, chg Chagatai.

Load

from datasets import load_dataset
ds = load_dataset("parquet", data_files="data/chagatai_parallel.parquet")["train"]

# or the Arrow copy written by the build script:
from datasets import load_from_disk
ds = load_from_disk("hf_dataset")

Contents (current build)

Built from every HuggingFace source in the catalog (public + gated, which required a token with granted access) plus the local Chagatai corpora (Eric Schluessel textbook, dictionary, exercises — downloaded from Google Drive). Totals are after cleaning (trim, drop empty/duplicate pairs, strip BOM/zero-width).

24 language pairs · 2,967,678 pairs total.

language pair	rows	source dataset(s)
en → ar	959,928	sentence-transformers/parallel-sentences-opus-100
kk → tr	711,658	liboaccn/nmt-parallel-corpus + issai/kazparc
azb → en	549,604	Kartal-Ol/en-azb-548k + facebook/flores
ar → kk	346,680	liboaccn/nmt-parallel-corpus
kk → en	290,875	issai/kazparc
uz → uzs	37,163	tahrirchi/lutfiy
ar → en	17,814	haoranxu/X-ALMA-Parallel-Data + kingkaung/islamqainfo
en → fa	8,579	aiana94/polynews-parallel
kk → ug	4,499	liboaccn/nmt-parallel-corpus
ug → en	3,087	kingkaung/islamqainfo + facebook/flores
tr → en	2,945	kingkaung/islamqainfo
ar → ru	2,385	aiana94/polynews-parallel
en → uzs	2,530	tahrirchi/lutfiy
kk → tk	1,116	liboaccn/nmt-parallel-corpus
Chagatai (chg + chg_latn)	28,815	Eric Schluessel textbook / dictionary / exercises
chg → kk	5,076	textbook + dictionary
chg → en	2,912	textbook + exercises
chg → ru	2,682	textbook
chg → tr	2,587	textbook
chg → uz	2,433	textbook
chg_latn → {en,kk,ru,tr,uz}	2,904 / 2,542 / 2,681 / 2,574 / 2,424	textbook + exercises
total	2,967,678

chg = Chagatai in Arabic script, chg_latn = Chagatai in Latin transliteration. See stats.json for the exact per-source / per-pair breakdown of the last build.

The Chagatai loaders read three local files that must sit next to the script (download them from the Google Drive links in the catalog):

Textbook on Chagatai (Eric Schluessel).xlsx
ЛИНГВИСТЕРГЕ.xlsx (dictionary → Kazakh definitions)
Eric_Exercise .xlsx

If they are absent the build simply skips them and logs why.

Not yet included

Dataset_OCR (Chagatai OCR, on institute SharePoint) and output_images_clean (images) — not sentence-parallel text, so out of scope for this schema.
uy_ts_articles (Uyghur) and the monolingual cis-lmu/GlotSparse, Uyghur-Corpus/Uyghur-Corpus — monolingual, no target side.

Rebuild / extend

pip install datasets pyarrow huggingface_hub pandas

# public sources only:
python build_dataset.py

# include the gated Kazakh sources (after requesting access on each dataset page):
export HF_TOKEN=hf_xxx
python build_dataset.py

The source registry (SOURCES in build_dataset.py) is config-driven — add a local Chagatai CSV by appending one entry with a small loader function.

Downloads last month: 7

Total file size:

450 MB