wikipedia: rebuild from the official plwiki dump, CC BY-SA 3.0/4.0 per page (v0.2.6)

#68
by ppuzio - opened
Fabryka AI org
•
edited 2 days ago

What and why

Rebuilds wikipedia from the official Wikimedia dump instead of the SpeakLeash plwiki snapshot, and labels each row CC BY-SA 3.0 or 4.0 by its page's last revision. v0.2.0-v0.2.5 labelled every row CC-BY-SA-3.0. Decision of 2026-10-05 on slayerlabs/polish-dynaword-v2#69 (October 2026 rights audit: artifacts/rights_audit_2026-10/reports/wikis_ugc.md L44-46, reports/citations.md L17).

Second commit (ca8d210), per the rule "keep a source clean, or drop what can't be cleared": drops the two pages the copyright sample found copied (COPIED_PAGES, keyed on the wiki page id) and pages whose {{ek}} speedy-deletion notice gives a copyright reason. Rebuilt from the same dump; only those two rows differ.

Before → after

v0.2.5 this PR
documents 1,171,897 1,468,654
characters 1,844,707,761 3,140,838,409
tokens (cl100k proxy) 707,194,207 1,226,912,191
CC-BY-SA-3.0 rows 1,171,897 190,836 (81,022,938 tokens, 6.6%)
CC-BY-SA-4.0 rows 0 1,277,818 (1,145,889,253 tokens, 93.4%)

The first commit (3393e05) had 1,468,656 documents and 1,226,913,508 tokens; ca8d210 removes 2 documents, 3,438 characters and 1,317 tokens.

Row ids are now wikipedia_<page id> (e.g. "Bitwa pod Grunwaldem": wikipedia_25295 → wikipedia_716). More documents, and longer text per page: the SpeakLeash text drops appendix sections and, on the page compared, lists ("Bitwa pod Grunwaldem": 37,234 → 59,133 characters).

Rules, counts, hand-checks

Dump plwiki-20260901-pages-articles, 7 shards, each sha1 matched to dumpstatus.json and sha1sums.txt (wikipedia.build.json). src/fetch_wikipedia.py:

rule count hand-check
pages scanned 2,877,278
not namespace 0 572,853
redirects 598,071
{{NPA}} / {{Copyvio}} / {{Plagiat}} in the page 35 dropped the 31 unchanged since the dump re-read on pl.wikipedia: all carry the notice (some mark one section; the whole page is dropped). 4 edited since were not re-read
{{ek}} (and redirects {{EK}}, {{Ekspresowe kasowanko}}, {{Usuń}}, {{Speedy}}, {{Delete}}) with a copyright reason (npa, plagiat, copypaste, kopiuj-wklej, copyvio, "praw… autorsk…") 0 dropped the dump has 0 live {{ek}} notices on articles, so no reasons to count and none to hand-check. A looser text scan of all 7 shards found 3, all inside <!-- --> comments (not shown, not counted): Pożar Londynu (1666) (powód=redir), Tabela wszech czasów w konkursie Miss Supranational (content moved), Dangdang (no reason)
empty / parser failures 0 / 0
exact duplicates of stripped text (lower page id kept) 382 6 sampled: all real duplicates (empty conversions of year/formula pages, table skeletons of tournament pages)
COPIED_PAGES (page id, reason per entry; the build fails if one is not reached) 2 dropped 833396 "Obnażyć prawdę", 1126780 "Czarnka" (see the sample below)
build_dynaword.py < 200 chars 231,717 8 sampled: all short stubs or disambiguations
build_dynaword.py non-Polish (diacritic ratio) 5,564 8 sampled: all Polish list/table pages heavy with foreign names; existing shared filter, not changed here
cross-source exact dedup 0

Label rule license_for_revision: last revision before 2023-06-07T00:00:00Z → CC-BY-SA-3.0, at or after → CC-BY-SA-4.0; a missing or zone-less timestamp stops the build. Tested at the cutoff second, across time zones and on a missing timestamp; test_every_row_label_follows_its_last_revision rechecks all 1,468,654 rows against the sidecar. 184 pages were last edited on 2023-06-07 itself: midnight puts them under 4.0. The audit suggested 06-08 "if time of day unknown"; that would put that day's 4.0 edits under 3.0, which 4.0 §3(b)(1) does not allow. Neither is exact without the switch time.

Copyright-paste sample: 40 released pages per label (seed 20261006), Earwig's Copyvio Detector on the dumped revision, every hit from confidence 0.10 or "possible"/"suspected" read by hand against the page history and the source's date:

result 3.0 4.0
below 0.10, not read 37 33
later copy of Wikipedia 2 4
shared title / stock phrase only 0 2
copied or closely paraphrased from a copyrighted source 1 1

95% Wilson upper bound 12.9% per label. The two pages, wikipedia_833396 "Obnażyć prawdę" (Filmweb's official description, paraphrased in 2008) and wikipedia_1126780 "Czarnka" (Drawieński Park Narodowy lake text, archived 2012, paraphrased in 2015), are dropped in ca8d210: "Obnażyć prawdę" excluded; "Czarnka" held for review, since whether the park's text is free under Art. 4 of the Polish copyright act is not assessed. The sample's population stays the 3393e05 build it was drawn from; wikipedia.license-evidence.json records the two dropped ids. Per page: wikipedia.copyvio-sample.jsonl.

Provenance and licence

  • Contributors' text: Wikimedia Terms of Use oldid 554823 (CC BY-SA 4.0 and GFDL, in effect June 7, 2023; sha256 c96ef93b…) and oldid 98524 (CC BY-SA 3.0, June 16, 2014); CC BY-SA 3.0 §4(b) and 4.0 §3(b)(1) legal code; pl.wikipedia rightsinfo BY-SA 4.0. Read 2026-10-05. A page edited after the switch carries its earlier 3.0 text under 4.0 via 3.0 §4(b)(ii) (inferred, not a lawyer's opinion).
  • Attribution: author = Wikipedia contributors, <page URL>; wikipedia.attribution.jsonl (LFS) has id, pageid, revid, title, url, last_revision_at, license per row.
  • SpeakLeash intermediary removed; src/sources.py provenance, licence, traceable text and upstream updated; release stays 0.2.0.
  • Not checked: GFDL-era text (every released page was last edited in 2010 or later, but may hold older text), imported text under other licences, deletion discussions and maintenance notices other than {{NPA}} and {{ek}}, quotations, the time of the switch. Appendix headings remain in 56.4% of documents (2.96% of characters) and whitespace-only lines in 11.9%; disambiguation pages are kept.

Dedup (reported, not fixed)

Exact-text overlap (SHA-256 of raw text) with NKJP1M (main and v0.2.5) and HPLT v0.2.5: 0 documents (v0.2.5: NKJP1M–Wikipedia 1, HPLT–Wikipedia 6). Near duplicates not measured. plwiki_talk (and other) overlap_audit.json compare literal ids against the old data/wikipedia and are stale after the id change.

Rebuild diff (3393e05 → ca8d210)

Same dump, same shards. Parquet: 1,468,656 → 1,468,654 rows; removed wikipedia_833396 and wikipedia_1126780; none added; no other row's columns changed. Attribution sidecar: the same two lines removed, none added or changed. Row order differs between builds (build_dynaword.py uses imap_unordered); content per id is identical. wikipedia.build.json: extract counts, exact_duplicate_pageids and copyvio_tagged unchanged.

Tests

$PY -m pytest -q on main 3bab9f9 (this PR's base): 24 failed, 258 passed, 7 errors. With this PR: 24 failed, 313 passed, 7 errors. The failing/erroring set is identical (LFS pointer parquets of other sources in the worktree); the 55 new tests in src/test_wikipedia_contract.py pass.

python3 src/render_sample.py data/wikipedia/wikipedia.parquet -n 3

id: wikipedia_241636
source: wikipedia
added: 2026-07-19
created: 2026-08-07
token_count: 165
license: CC-BY-SA-4.0
author: Wikipedia contributors, https://pl.wikipedia.org/wiki/Montliot-et-Courcelles

Montliot-et-Courcelles – miejscowość i gmina we Francji, w regionie Burgundia-Franche-Comté, w departamencie Côte-d’Or. Przez miejscowość przepływa Sekwana. 

Według danych na rok 1990 gminę zamieszkiwało 288 osób, a gęstość zaludnienia wynosiła 33 osoby/km² (wśród 2044 gmin Burgundii Montliot-et-Courcelles plasuje się na 625. miejscu pod względem liczby ludności, natomiast pod względem powierzchni na miejscu 999.).

 Przypisy 

 Bibliografia
id: wikipedia_2640084
source: wikipedia
added: 2026-07-19
created: 2023-05-20
token_count: 109
license: CC-BY-SA-3.0
author: Wikipedia contributors, https://pl.wikipedia.org/wiki/Podhrad%C3%AD_%28kraj_zli%C5%84ski%29

Podhradí – gmina w Czechach, w powiecie Zlín, w kraju zlińskim. Według danych z dnia 1 stycznia 2012 liczyła 196 mieszkańców.

W pobliżu miejscowości Podhradí (czyli podgrodzie) znajdują się ruiny średniowiecznego zamku Starý Světlov.

Zobacz też:
 Podhradí

 Przypisy
id: wikipedia_2948074
source: wikipedia
added: 2026-07-19
created: 2022-07-16
token_count: 119
license: CC-BY-SA-3.0
author: Wikipedia contributors, https://pl.wikipedia.org/wiki/Radio._Miesi%C4%99cznik_dla_technik%C3%B3w_i_amator%C3%B3w

Radio. Miesięcznik dla techników i amatorów – polskie czasopismo o tematyce radiotechnicznej, wydawane od marca 1946 r. do grudnia 1950 r. przez Biuro Wydawnictw Polskiego Radia. Od roku 1951 pismo zostało połączone z miesięcznikiem "Radioamator.".

 Zobacz też 
 Radioamator (czasopismo)
 Radioamator i Krótkofalowiec

 Przypisy

🤖 Generated with Claude Code

ppuzio changed pull request status to open
ppuzio changed pull request status to merged
ppuzio deleted the refs/pr/68 ref

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