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source_dataset
large_string
source_doc_id
large_string
text
large_string
title
large_string
author
large_string
source_metadata_json
large_string
is_historical_or_polytonic
bool
contains_math
bool
contains_latex
bool
greek_percentage
float64
latin_percentage
float64
polytonic_ratio
float64
table_ratio
float64
greek_badness_score
float64
len_greek
int64
mojibake_badness_score
float64
needs_ocr
bool
is_empty
bool
filter
large_string
ocr_success
bool
quality_method
large_string
reevaluated_at
timestamp[us, tz=UTC]
content_chars_kept
uint64
chars_dropped_by_line_drop
uint64
chars_dropped_by_normalization
uint64
chars_dropped_by_per_char_filter
uint64
lines_dropped_by_cleaner
uint64
marker_chars_passthrough
uint64
marker_chars_added
uint64
charset_greek_ratio
float64
charset_moji_ratio
float64
charset_punct_ratio
float64
mojibake_noise_ratio
float64
rule_a_match_count
uint64
rule_b_match_count
uint64
residue_line_drop_count
uint64
phase_a_fallback_reason
string
phase_a_dialect_ambiguous_input
bool
cleaner_chars_before
uint64
cleaner_chars_after
uint64
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::31c2ea1c464ed9553ef7769a5cf2344a
1 2 3 περιεχόμενα Η Εταιρεία 4-5 Δελφοί-Δίστομον 6 Ιστορία7 Τα Προϊόντα 8-9 Υποδομές / Εγκαταστάσεις10-11 Γραμμή Παραγωγής Ανθρώπινο Δυναμικό 14 Εταιρική Κοινωνική Ευθύνη 15-18 4 Η Εταιρεία 4 Εδώ και μισό αιώνα, η ΑΛΟΥΜΙΝΙΟΝ Α.Ε. αποτελεί έναν από τους πυλώνες της βαριάς βιομηχανίας στη χώρα μας. Η εταιρεία που ιδρύθηκ...
null
null
{"cluster_size": 4, "content_type": "text/html", "crawl_id": "CC-MAIN-2016-44", "doc_scores": [10, 10, 10, 10, 10, 10, 10, 10, 10, 10], "filter": "keep", "host": "docplayer.gr", "lang": ["ell_Grek", "ydd_Hebr", "acq_Arab"], "prob": [1, 0, 0], "quality_bin": 10, "register_level_1": "Informational persuasion", "register_...
false
false
false
99.483
0.517
0
0
0.621118
16,905
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
20,465
0
2
0
0
0
0
0.960293
0
0.022552
0.022552
0
0
0
null
false
20,467
20,465
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::c26b16c055a91d50a6762890626cb422
"2 Οι class war dogz είναι μια αυτόνομη πολιτική ομάδα που δημ(...TRUNCATED)
null
null
"{\"cluster_size\": 4, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
99.054
0.946
0
0
8.657626
71,384
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
89,331
0
1
0
0
0
0
0.949862
0.000106
0.027557
0.027664
0
0
0
null
false
89,332
89,331
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::63c07dfb5a4bc34f90f87cf0b2abbd50
"ΕΙΔΗΣΕΙΣ Όλη η συμφωνία Ελλάδας-Κύπρου για την έρευνα (...TRUNCATED)
null
null
"{\"cluster_size\": 17, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sc(...TRUNCATED)
false
false
false
98.778
1.222
0
0
0.355461
11,253
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
13,835
0
1
0
0
0
0
0.94818
0
0.022245
0.022245
0
0
0
null
false
13,901
13,900
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::be1ebc557c093de185c7ac154fcf9362
"1 ΕΘΝΙΚΗ ΣΥΝΟΜΟΣΠΟΝΔΙΑ ΕΛΛΗΝΙΚΟΥ ΕΜΠΟΡΙΟΥ ΠΡΑΞΗ: «Ανα(...TRUNCATED)
null
null
"{\"cluster_size\": 4, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
98.15
1.85
0
0
4.007782
25,700
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
31,632
0
1
0
0
0
0
0.939396
0
0.027012
0.027012
0
0
0
null
false
31,633
31,632
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::394c3b523309f83687885fe09a0bf3c9
"1 ΑΝΤΙΠΡΟΣΩΠΕΙΑ ΤΟΥ ΣΑΔΑΣ ΠΕΑ 4η ΣΥΝΕΔΡΙΑΣΗ της 05/07/2014, (...TRUNCATED)
null
null
"{\"cluster_size\": 5, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
99.724
0.276
0
0
3.198645
42,518
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
51,194
0
9
0
0
0
0
0.960924
0.002622
0.022465
0.025086
0
0
0
null
false
51,203
51,194
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::e2362296d6de069991028360e7d6bb5a
"1 Ε ΛΛΗΝΟΑΜΕΡΙΚΑΝΙΚΟ Ε ΚΠΑΙΔΕΥΤΙΚΟ Ι ΔΡΥΜΑ ΣΩΜΑΤΕΙΟ ΜΗ(...TRUNCATED)
null
null
"{\"cluster_size\": 2, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
99.852
0.148
0
0
2.824724
20,191
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
24,695
0
1
0
0
0
0
0.962393
0
0.02531
0.02531
0
0
0
null
false
24,696
24,695
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::92ac695ab2c60b56a3af6ddaf3db67a5
"1 ποιότητα ζωής για όλους Mε τη συγχρηματοδότηση της Ελ(...TRUNCATED)
null
null
"{\"cluster_size\": 1, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
99.848
0.152
0
0
3.509384
16,571
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
19,979
0
0
0
0
0
0
0.967593
0.000817
0.019911
0.020729
0
0
0
null
false
19,979
19,979
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::ed8a5238baf9cce7d1ea2b2de0a15d35
"1 ΣΥΜΒΑΣΗ ΧΟΡΗΓΗΣΗΣ ΚΑΙ ΧΡΗΣΗΣ ΕΤΑΙΡΙΚΗΣ ΚΑΡΤΑΣ VISA Με (...TRUNCATED)
null
null
"{\"cluster_size\": 2, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
98.806
1.194
0
0
2.715843
31,655
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
38,843
0
4
0
0
0
0
0.959184
0.000091
0.02112
0.021211
0
0
0
null
false
38,847
38,843
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::b2a1961e0241cff9aa8bf62c0e576819
"1 δημιουργία ΤΕΥΧΟΣ 6 ΣEΠTEMBPIΟΣ-ΔΕΚΕΜΒΡΙΟΣ 2011 Κολλάζ Οδυ(...TRUNCATED)
null
null
"{\"cluster_size\": 4, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
98.605
1.395
0.013336
0
6.290344
25,983
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
32,347
0
1
0
0
0
0
0.951236
0
0.022552
0.022552
0
0
0
null
false
32,348
32,347
HPLT/ell_Grek_ge8_no_mt_clean60
hplt::10_1.jsonl.zst::f88a0a9a349c05a4aa7a3a04d5a4f0f3
"1 Τ.Ε.Ι. ΚΑΒΑΛΑΣ ΣΧΟΛΗ ΔΙΟΙΚΗΣΗΣ ΚΑΙ ΟΙΚΟΝΟΜΙΑΣ ΤΜΗΜΑ Δ(...TRUNCATED)
null
null
"{\"cluster_size\": 2, \"content_type\": \"text/html\", \"crawl_id\": \"CC-MAIN-2016-44\", \"doc_sco(...TRUNCATED)
false
false
false
85.752
14.248
0
0
1.976021
35,030
0
false
false
ok
false
corpus.clean
2026-04-30T10:36:37.720000
50,232
0
0
0
0
0
0
0.818095
0
0.02945
0.02945
0
0
0
null
false
50,232
50,232
End of preview. Expand in Data Studio

HPLT Greek GE8 No-MT Clean60 Wave4

A standalone release of the filtered Greek HPLT slice used in the GlossAPI Greek pretraining corpus. It contains the full HPLT/ell_Grek_ge8_no_mt_clean60 source after the Wave4 re-cleaning and normalization pass.

Snapshot

  • Rows: 48728774
  • Data parquet files: 250
  • Source dataset value: HPLT/ell_Grek_ge8_no_mt_clean60
  • Quality bins: 8, 9, 10
  • MT/register filtering: applied before this release
  • Cleaner gate: greek_badness_score <= 60 before Wave4 re-cleaning

Token Count With ModernGreek-148k

This full HPLT slice was tokenized with fffoivos/apertus-tokenizer-extension's selected ModernGreek-148k tokenizer:

  • tokenizer vocab: 148480 tokens (131072 Apertus base + 17408 modern Greek extension tokens)
  • tokenizer SHA-256: 358ae3f29ac17c99769d6d437339e28657d5fcaed3486f8550feed3d6adfc394
  • rows/documents: 48,728,774
  • tokens without special tokens/EOD: 44,195,950,025
  • tokens with one EOD per row: 44,244,678,799
  • average tokens per row without EOD: 906.9785

The count was produced on Clariden with a CPU-only xfer job (2399397) and uses add_special_tokens=false.

Quality Bin Distribution

quality_bin row_count file_count share_of_rows_percent
8 38919919 199 79.87
9 9709678 50 19.93
10 99177 1 0.2

Columns

  • source_dataset
  • source_doc_id
  • text
  • title
  • author
  • source_metadata_json
  • is_historical_or_polytonic
  • contains_math
  • contains_latex
  • greek_percentage
  • latin_percentage
  • polytonic_ratio
  • table_ratio
  • greek_badness_score
  • len_greek
  • mojibake_badness_score
  • needs_ocr
  • is_empty
  • filter
  • ocr_success
  • quality_method
  • reevaluated_at
  • content_chars_kept
  • chars_dropped_by_line_drop
  • chars_dropped_by_normalization
  • chars_dropped_by_per_char_filter
  • lines_dropped_by_cleaner
  • marker_chars_passthrough
  • marker_chars_added
  • charset_greek_ratio
  • charset_moji_ratio
  • charset_punct_ratio
  • mojibake_noise_ratio
  • rule_a_match_count
  • rule_b_match_count
  • residue_line_drop_count
  • phase_a_fallback_reason
  • phase_a_dialect_ambiguous_input
  • cleaner_chars_before
  • cleaner_chars_after

Intended Use

  • Greek web-text pretraining experiments
  • HPLT-only baselines
  • Mixture construction with curated GlossAPI sources
  • Tokenizer and cleaning analysis over a large filtered web corpus

Notes

  • This dataset is intentionally HPLT-only; the broader mixed corpus lives at fffoivos/glossapi-greek-nanochat-pretraining-dataset.
  • Source licensing remains governed by the upstream HPLT release.
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