polish-technical-mega / processing /technical_corpus_curation.py
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Repair v0.3.0: document-disjoint splits, explicit scope, lossless quarantine and rebuilt Slayer packs
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"""Document-level curation; no language-model inference or invented OCR corrections."""
from __future__ import annotations
from collections import defaultdict, deque
import hashlib
import json
from pathlib import Path
import re
from urllib.parse import urlparse
POLICY = Path(__file__).with_name("technical_mega_curation_policy.json")
def load_metadata(root: Path) -> dict[str, list[dict]]:
paths = [root / "polish_cnc_technical_dynaword/provenance" / name for name in (
"full_source_records.jsonl", "augmentation_bcpw_records.jsonl",
"augmentation_zpe_records.jsonl", "augmentation_rock_records.jsonl",
)]
paths += [root / folder / "provenance/articles.jsonl" for folder in (
"polish_industrial_maintenance_dynaword", "polish_automation_control_dynaword",
"polish_engineering_new_dynaword",
)]
paths.append(root / "zpe_cnc_pl_dynaword/provenance/records.jsonl")
paths += sorted((root / "polish_source_subset/data").glob("*/*.attribution.jsonl"))
result: dict[str, list[dict]] = defaultdict(list)
for path in paths:
for line in path.read_text(encoding="utf-8-sig").splitlines():
if line.strip():
metadata = json.loads(line)
if metadata not in result[metadata["id"]]:
result[metadata["id"]].append(metadata)
return dict(result)
def group_keys(record: dict, metadata: list[dict]) -> list[str]:
"""Aliases join shared PDFs, book chapters and alternate source namespaces."""
source, identity = record["source"], record["id"]
keys = set()
for item in metadata:
if source.startswith("bibliotekanauki-"):
article = str(item["article_id"])
keys.add("bibliotekanauki:" + article)
elif source == "wikibooks":
keys.add("wikibooks:" + item["title"].split("/", 1)[0])
elif source == "open_agh_chemistry_pl":
keys.update("agh-book:" + str(book["book_id"]) for book in item["memberships"])
elif source in ("rock_pollub_pl", "rock-pollub-open"):
handle = item["handle"].removeprefix("https://hdl.handle.net/").strip("/")
keys.add("rock-book:" + handle)
elif source == "open_icm_pl":
keys.add("icm-book:" + item["handle"].removeprefix("https://hdl.handle.net/").strip("/"))
elif source == "bcpw-public-domain":
keys.add("bcpw-book:" + " ".join(item["title"].split()).casefold())
elif source == "wikisource-maszynisci-1873":
keys.add("wikisource-book:maszynisci-1873")
elif source == "zpe-cnc-pl":
page = urlparse(item["url"]).path.rstrip("/").rsplit("/", 1)[-1]
if not re.fullmatch(r"D[A-Za-z0-9]+", page):
raise ValueError(f"Unreviewed ZPE page identity: {identity}: {page}")
keys.add("zpe-page:" + page)
else:
raise ValueError(f"Unreviewed source family: {source}")
for digest in (item.get("pdf_sha256"), item.get("payload_sha256"), (item.get("pdf") or {}).get("sha256")):
if digest:
if not re.fullmatch(r"[0-9a-f]{64}", digest):
raise ValueError(f"Invalid PDF checksum: {identity}")
keys.add("pdf:" + digest)
if not keys:
raise ValueError(f"Missing document/book attribution: {identity}")
return sorted(keys)
def exclusion_reasons(record: dict, metadata: list[dict], policy: dict) -> list[str]:
source = record["source"]
reasons = set()
if source == "wikibooks":
for item in metadata:
book = item["title"].split("/", 1)[0]
decision = policy["wikibooks_books"][book] # Unknown books require review.
if not decision["include"]:
reasons.add("outside_selected_book_scope")
if source == "open_icm_pl" and record["id"] not in policy["open_icm_include_ids"]:
reasons.add("outside_selected_book_scope")
if source in ("bcpw-public-domain", "wikisource-maszynisci-1873"):
reasons.add("historical_technical_archive_not_current_training")
if source.startswith("bibliotekanauki-"):
for item in metadata:
reviewed = policy["reviewed_damaged_articles"].get(str(item["article_id"]))
if reviewed:
if item["pdf_sha256"] != reviewed["pdf_sha256"]:
raise ValueError("Reviewed damaged PDF changed; a new review is required")
reasons.add("verified_unreliable_pdf_text_layout")
return sorted(reasons)
def assign_groups(records: list[dict], metadata: dict[str, list[dict]], policy: dict) -> None:
parents: dict[str, str] = {}
def find(key: str) -> str:
parents.setdefault(key, key)
root = key
while parents[root] != root:
root = parents[root]
while parents[key] != key:
next_key = parents[key]
parents[key] = root
key = next_key
return root
for record in records:
identities = [record, *record.get("_aliases", [])]
keys = sorted({key for identity in identities for key in group_keys(identity, metadata[identity["id"]])})
root = find(keys[0])
for key in keys[1:]:
other = find(key)
if other != root:
low, high = sorted((root, other))
parents[high] = low
root = low
record["_group_keys"] = keys
record["_exclusion_reasons"] = sorted({
reason for identity in identities
for reason in exclusion_reasons(identity, metadata[identity["id"]], policy)
})
group_reasons: dict[str, set[str]] = defaultdict(set)
for record in records:
record["_group_id"] = find(record["_group_keys"][0])
group_reasons[record["_group_id"]].update(record["_exclusion_reasons"])
for record in records:
record["_exclusion_reasons"] = sorted(group_reasons[record["_group_id"]])
record["_split"] = "quarantine" if record["_exclusion_reasons"] else split_for(record["_group_id"])
def split_for(group: str) -> str:
# Preserve the original article-ID split algorithm for unaliased Biblioteka articles.
seed = group.removeprefix("bibliotekanauki:") if group.startswith("bibliotekanauki:") else group
bucket = int(hashlib.sha256(seed.encode("utf-8")).hexdigest()[:8], 16) % 100
return "test" if bucket < 5 else "valid" if bucket < 10 else "train"
def balanced_samples(records: list[dict], limit: int = 32) -> list[dict]:
"""Round robin across source families; distinct books/documents first."""
buckets: dict[str, list[dict]] = defaultdict(list)
for record in sorted(records, key=lambda row: hashlib.sha256(row["id"].encode()).hexdigest()):
buckets[record["source"]].append(record)
queues = {}
for source, rows in sorted(buckets.items()):
seen = set()
first, rest = [], []
for row in rows:
(rest if row["_group_id"] in seen else first).append(row)
seen.add(row["_group_id"])
queues[source] = deque(first + rest)
sample = []
while len(sample) < limit and any(queues.values()):
for queue in queues.values():
if queue and len(sample) < limit:
sample.append(queue.popleft())
return sample