Datasets:

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SlayerLab

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polish-dynaword

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Fabryka AI 97

Cleans the wikinews text (v2#116, option A) and relabels it by contribution date (v2#110, option B), with the licence switch treated as a window of most of a day rather than a whole day.

Labels per record (23,573 documents, 10,970,210 tokens; was 24,386 / 12,141,355)

Before (by last revision, 4.0 from 2024-12-16 00:00 UTC): 2.5 17,581 / 4.0 6,805. Every 2.5 row stays 2.5. Of the 6,404 4.0 rows still released, 2,654 are now 2.5, 113 both and 3,637 stay 4.0. Basis per row: the stub dump plwikinews-20261001-stub-meta-history.xml.gz (sha1 4ad674a2…), plus the pre-cutoff revision text converted with the same strip and compared word by word with the shipped text. Each sidecar line gains license_basis and pre_cutoff_revid, and license_flags where one applies.

Switch window: the configuration change was merged at 2024-12-16 08:07:33 UTC (Gerrit 1101867), but the licence notice under the edit box (MediaWiki:Copyrightwarning) named CC BY 2.5 until revision 342971 at 23:19:21 UTC. Text saved in between is labelled both, since CC BY 2.5 has no later-version clause. This affects 25 rows with a revision in the window (edited_in_switch_window): 15 pages created in it (both, new basis created_in_switch_window), 5 whose window edits left the text unchanged (2.5) and 5 that gain words after the cutoff anyway (both). The evidence's cutoff.by_contribution holds the window and the notice revisions.

Created before 2005-09-25: 1,250 rows are of pages created before the date from which the terms page says articles are public domain (created_before_cc_by_2_5). The statement is not relied on: they are labelled by contribution (1,237 2.5, 13 both).

Cleanup (v2#116): drop_residue changed 24,204 rows and removed 3,124,102 characters (89% of them category lines) and 1,171,145 tokens. 812 pages fell under 200 characters and were dropped. One more, wikinews_24619, was dropped because its cleaned text repeats wikinews_24618's. Leftovers are listed in the card. The main one is a lone mały/right/left line in 371 rows (the first line in 365). A rule for it would also change the released wikivoyage and wikibooks text, so it is not in v0.2.6.

Code:

• wiki_history.compare adds the created_in_switch_window case for a source with a window_end.
• fetch_wikimedia.retext drops a row whose cleaned text repeats a lower page id's, as prepare would.
• The card's licensing text covers the window.
• relabel writes the window to the evidence.

Tests: the wiki contract tests pass, and wikivoyage and wikibooks cards are unchanged. The full suite shows no new failures against the baseline, which comes from LFS-pointer shards in the worktree. A rerun of retext, relabel and datasheet is byte-identical. README, CHANGELOG and totals are left to v2#80. Details are in artifacts/source_findings.md.

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