Haebim maritime filtered corpus
Parquet (zstd), converted on 2026-09-30 from the JSONL shards uploaded directly from
PostgreSQL using the Hugging Face API; rows, order and values are unchanged.
Selection: maritime v2 score >= 0.4 (>= 0.655 until 2026-09-30; filter
maritime_score >= 0.655 to reproduce it), 1024-token runs recorded in manifest.json.
Unscored/rejected and legacy 384-token results are excluded. Full decoded stored
text is included without repair or truncation; scores used at most 4096 characters
and 1024 tokens. Each row preserves URL, source, crawl time, score time, model,
bundle digest, run ID, backend and text SHA256. Cross-URL duplicates are retained.
Scores are machine predictions; the cutoff is not human-gold calibrated.
Source content retains its original rights; no blanket license is assigned.
The original snapshot is preserved. Completed filtering windows were appended at score >= 0.4 until collection stopped on 2026-09-30. Document IDs are deduplicated across original and incremental uploads. Reference-only papers awaiting final review are published separately in the papers configuration. The train split is a
corpus partition, not a held-out evaluation set.
manifest.json records row counts and SHA256 values of the Parquet files (parquet)
and of the JSONL shards they were converted from (shards, engineering.shards,
papers.shards).
topic=engineering configuration
load_dataset(repo, "engineering") reads engineering/train-*.parquet: documents
from general mechanical-engineering venues whose methods transfer to
shipbuilding (fluid dynamics, structures, materials/welding/corrosion,
propulsion/thermal/energy, electrical/control/autonomy, manufacturing and
optimization). Membership is decided by venue alone -- a registered venue
(journal, society, media, technical reference or industry technical pages)
profile or URL pattern, or an arXiv primary category -- as listed in
engineering_venues_v1 and recorded per row (venue, venue_kind, fields,
venue_rule). Rows carry topic="engineering". Only documents the maritime
model scored below the maritime cutoff are included (0.655 until 2026-09-30,
0.4 since); documents already in this configuration stay here and are not
added to default, so no document appears in both configurations; maritime_score and the run fields are provenance only.
topic=papers configuration
load_dataset(repo, "papers") reads papers/train-*.parquet: every scholarly
paper collected by citation expansion from the maritime corpus, kept outside
the main crawl until a final review. No topical filter is applied: expansion
drifts off topic with citation depth (citation_depth), and an audit of a
sample found most papers unrelated to maritime engineering, so filter before
use. maritime_score is a preliminary signal only; the model was not calibrated
for papers and under-scores related engineering. review_label is set when a
validated review labelled the paper direct_shipbuilding or
related_engineering; review_state="pending" means no final review has been
made. Each distinct text appears once (paper_source="deferred_reference",
keyed by text_sha256); papers stored as crawled documents
(paper_source="document") appear only when neither default nor
engineering holds that document. The first 705 rows (policy v1) were the
papers with score >= 0.4 or an accepting review. Rows carry topic="papers",
the resolved work identifiers and the citation depth of the acquisition.
Parquet files and the tokenized partition
Every configuration is stored as Parquet since 2026-09-30. The JSONL files they
were converted from remain in commit fb9f75ed5e5e6a679e07783c48ec9f8dfb4ce584 (revision="fb9f75ed5e5e6a679e07783c48ec9f8dfb4ce584").
The tokenized_<config> configurations (tokenized/<config>/train-*.parquet)
hold, row for row with the text file of the same name, the row id and
input_ids (int32) of text under the Qwen3.8 tokenizer (Qwen/Qwen3.8-27B
revision 1d4bf0f2ff6012fd82039f2fa52739d0dd7c60c0, tokenizer.json sha256 0997f410c57a).
No special tokens are added; separate documents with <|endoftext|> (id 248044)
when packing. The tokenizer normalizes to NFC, so decoding returns the NFC form
of text. The row id is document_id; papers use document_id and job_id
together, of which exactly one is set.
| config | rows | tokens | files |
|---|---|---|---|
default / tokenized_default |
6,759,973 | 6,496,715,754 | 61 |
engineering / tokenized_engineering |
251,641 | 777,978,232 | 7 |
papers / tokenized_papers |
12,670 | 152,004,308 | 2 |
Release v1.0 (2026-09-29)
Tag v1.0 fixes the data files of commit 996ade125984e7708d48645ce08210ba2ddf6040; the commit it points to
changes only this card. The stream keeps appending to main after the tag, so
load this version with revision="v1.0".
| config | rows | shards |
|---|---|---|
default (maritime, score >= 0.655) |
4,547,716 | 768 |
engineering (venue lane, maritime score < 0.655) |
250,544 | 56 |
default = the 1,421,861-row original snapshot plus 3,125,855 rows from completed
filtering windows; engineering follows policy venue-registry-below-maritime-cutoff-v1 with
registry engineering_venues_v1 (sha256 a0ca32eaa1ca).
Documents still awaiting a score or an arXiv category at tag time are not included.
Engineering rows by venue kind:
| venue_kind | rows |
|---|---|
| media | 137,243 |
| society | 44,143 |
| journal | 40,397 |
| preprint | 21,873 |
| industry | 5,001 |
| reference | 1,887 |
Engineering rows by field (a row counts once per field it lists):
| field | rows |
|---|---|
| manufacturing_optimization | 182,266 |
| electrical_control_autonomy | 146,629 |
| fluid_dynamics | 121,681 |
| materials_joining_corrosion | 98,975 |
| structural_mechanics | 76,978 |
| thermal_energy | 56,200 |
| propulsion | 9,485 |
Largest engineering venues:
| venue | rows |
|---|---|
| Design World | 53,915 |
| ASME Topics & Resources | 43,480 |
| AZoM news | 34,629 |
| AZoM articles | 15,574 |
| Engineering.com | 12,330 |
| The Robot Report | 9,941 |
| Machine Design | 7,354 |
| arXiv math.OC | 6,777 |
| Frontiers in Energy Research | 5,325 |
| arXiv cs.RO | 4,853 |
| Materials Transactions (JIM) | 4,702 |
| Frontiers in Materials | 3,885 |
| arXiv cond-mat.mtrl-sci | 3,443 |
| COMSOL Blog & Learning Center | 3,401 |
| ISIJ International | 3,288 |
| Korean Journal of Metals and Materials (๋ํ๊ธ์ยท์ฌ๋ฃํํ์ง) | 3,205 |
| arXiv eess.SY | 3,071 |
| Frontiers in Robotics and AI | 2,688 |
| Journal of Welding and Joining | 2,672 |
| Fluid Power World | 2,167 |
| Frontiers in Built Environment | 2,122 |
| Journal of the Korean Society of Manufacturing Process Engineers | 1,721 |
| arXiv physics.flu-dyn | 1,603 |
| Gear Technology | 1,333 |
| Journal of the Korean Society for Fluid Machinery | 1,231 |
| Mechanical Sciences (Copernicus) | 1,124 |
| Total Materia Articles | 1,040 |
| Tetsu-to-Hagane (้ใจ้ผ) | 899 |
| Frontiers in Mechanical Engineering | 865 |
| FORCE Technology Insights | 711 |
Source content retains its original rights; no blanket license is assigned.
- Downloads last month
- 416