add info, add jsonl in lfs

.gitattributes

@@ -58,3 +58,5 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+*.jsonl filter=lfs diff=lfs merge=lfs -text
+*.jsonl.gz filter=lfs diff=lfs merge=lfs -text

README.md

@@ -1,3 +1,262 @@
 ---
-license: mit
+language:
+- ru
+license: cc-by-sa-4.0
+pretty_name: Russian Wikipedia quality articles with subjects (20261001)
+configs:
+- config_name: articles
+  default: true
+  data_files:
+  - split: corpus
+    path: data/articles.jsonl.gz
+- config_name: topics
+  data_files:
+  - split: corpus
+    path: data/topics.jsonl.gz
 ---
+
+# Russian Wikipedia quality articles with subjects — 20261001
+
+This Russian-language collection contains **17,251 Wikipedia articles**
+with at least one subject label from a fixed taxonomy of **28 subjects**.
+It is selected from the **17,413 articles** in
+[Russian Wikipedia quality articles](https://huggingface.co/datasets/TopicNet/RuWiki-Good-2026-V2),
+based on the **20261001** dump. Each article retains the original title, readable
+text, wikitext, direct categories, community quality status and revision links,
+and adds a `topics` list. The `topics` configuration supplies the complete subject
+definitions. The full category catalog remains in the source collection.
+
+## Selection and subject labels
+
+The source includes namespace-0 articles with active recommended (Добротные),
+good (Хорошие) or featured (Избранные) community status. Redirects and
+disambiguation pages are excluded. Multiple active statuses are retained;
+former-status categories are recorded separately. These are editorial
+designations at the snapshot date, not independent factual checks.
+
+Subject assignment combines mappings from specific direct editorial rubrics
+with AI-assisted review of ambiguous rubrics using direct subject categories and,
+where needed, excerpts from the saved readable text. Mixed editorial rubrics
+identify possible subjects; they do not assign all those subjects simultaneously.
+Category ancestry is not propagated. Category mappings are assessed against the
+subject definitions: a category name being present does not by itself establish
+a narrow subject, and an interdisciplinary regional-studies category does not
+automatically establish language scholarship. Incidental mentions, birthplaces, awards,
+party membership or education alone do not establish a subject. Labels already
+supported by specific rubrics are retained unless there is explicit contrary
+evidence.
+
+Labels are **partial** and were curated with AI assistance; they are not
+exhaustive annotation or a human gold standard. Category interpretation may be
+wrong, and relevant subjects may have been missed. Text review was limited to
+selected passages where categories needed clarification; articles were not read
+in full. A missing label is not evidence that the article lacks that subject.
+Multiple labels are allowed when each has support. Articles are included when
+their subject list is nonempty: **162 source articles** have no assigned subject label and are
+omitted. No coverage quota, topic balancing or maximum label count was used.
+Subject frequencies and intersections are consequently uneven.
+
+There is no NLP preprocessing, model scoring or research train/test split in this
+package. The `corpus` split is a storage partition. Source text has not been
+shortened or rewritten for subject selection. No exact duplicate source text was
+removed. This collection is not a representative sample of Russian writing.
+
+## Loading
+
+Both configurations use compressed JSON Lines and require no dataset script.
+
+```python
+from datasets import load_dataset
+
+articles = load_dataset(
+    "TopicNet/RuWiki-Good-2026-V2-Selected", "articles", split="corpus"
+)
+topics = load_dataset(
+    "TopicNet/RuWiki-Good-2026-V2-Selected", "topics", split="corpus"
+)
+print(len(articles))  # 17251
+print(len(topics))    # 28
+```
+
+From a downloaded repository, use its local directory with the same two config
+names, or load the files directly:
+
+```python
+articles = load_dataset(
+    "json", data_files={"corpus": "data/articles.jsonl.gz"}, split="corpus"
+)
+topics = load_dataset(
+    "json", data_files={"corpus": "data/topics.jsonl.gz"}, split="corpus"
+)
+```
+
+## Article fields
+
+
+| Field | JSON type | Meaning |
+| --- | --- | --- |
+| `id` | string | Stable page identity, `ruwiki/<page_id>`. |
+| `page_id` | integer | Russian Wikipedia page ID. |
+| `title` | string | Article title with spaces, separate from the text. |
+| `wikitext` | string | XML-decoded revision wikitext. |
+| `raw_text` | string | Readable text extracted from `wikitext`; not rendered HTML. |
+| `wikitext_sha256` | string | SHA-256 of UTF-8 encoded `wikitext`. |
+| `raw_text_sha256` | string | SHA-256 of UTF-8 encoded `raw_text`. |
+| `quality_statuses` | array of strings | Active `recommended`, `good` and/or `featured` statuses from SQL. |
+| `former_quality_categories` | array of strings | Direct former-status category names from SQL; may be empty. |
+| `categories` | array of strings | All direct SQL category names, including maintenance categories. |
+| `wikidata_id` | string or null | Wikidata QID from SQL page properties, when available. |
+| `revision_id` | integer | Content revision ID from XML. |
+| `revision_timestamp` | string | XML revision timestamp in UTC, such as `2026-09-26T22:17:57Z`. |
+| `metadata_revision_id` | integer | SQL page revision ID; may differ from `revision_id`. |
+| `page_url` | string | Page-ID URL for the source page and access to its history. |
+| `revision_url` | string | Permanent URL for the content revision. |
+| `topics` | array of strings | Sorted unique subject slugs; at least one in every retained article. |
+
+The source fields are preserved exactly; only `topics` is added. The table describes the stored JSON types. Hugging Face Datasets 5.0.0 infers
+`revision_timestamp` as `timestamp[s]` and `former_quality_categories` as
+`List(null)` for this release, whose former-status lists are empty. Nullable
+scalar fields remain nullable when loaded.
+
+For example, the following is an actual record projected onto a few fields (the
+text and remaining fields are omitted here):
+
+```json
+{
+  "id": "ruwiki/21",
+  "page_id": 21,
+  "title": "Социология",
+  "quality_statuses": [
+    "featured"
+  ],
+  "wikidata_id": "Q21201",
+  "revision_id": 155304860,
+  "metadata_revision_id": 155304860,
+  "revision_timestamp": "2026-09-26T22:17:57Z",
+  "page_url": "https://ru.wikipedia.org/?curid=21",
+  "revision_url": "https://ru.wikipedia.org/w/index.php?oldid=155304860",
+  "topics": [
+    "social-sciences-education"
+  ]
+}
+```
+
+## Topic fields and distribution
+
+Each topic record contains the definition used to assign that subject. Join article
+`topics` entries to topic `slug`.
+
+| Field | JSON type | Meaning |
+| --- | --- | --- |
+| `slug` | string | Stable subject identifier used in article `topics`. |
+| `name_en` | string | English subject name. |
+| `name_ru` | string | Russian subject name. |
+| `definition_and_boundaries` | string | Russian definition and boundaries between subjects. |
+
+Counts overlap because an article may have several subjects.
+
+| Subject | Slug | Articles |
+| --- | --- | ---: |
+| Mathematics and statistics | `mathematics` | 158 |
+| Physics | `physics` | 220 |
+| Chemistry | `chemistry` | 132 |
+| Astronomy and space | `astronomy-space` | 283 |
+| Earth science | `earth-science` | 63 |
+| Geography and places | `geography` | 767 |
+| Biology | `biology` | 1,370 |
+| Medicine and health | `health` | 207 |
+| Environment and agriculture | `environment-agriculture` | 87 |
+| History and archaeology | `history-archaeology` | 4,177 |
+| Military affairs and security | `military-security` | 2,332 |
+| Politics and law | `politics-law` | 1,140 |
+| Economics and business | `economy-business` | 254 |
+| Philosophy | `philosophy` | 108 |
+| Religion and mythology | `religion-mythology` | 814 |
+| Language and linguistics | `language` | 264 |
+| Literature | `literature` | 1,132 |
+| Visual and performing arts | `visual-performing-arts` | 755 |
+| Architecture and structures | `architecture` | 428 |
+| Film, television and animation | `film-television-animation` | 850 |
+| Music | `music` | 952 |
+| Games | `games` | 784 |
+| Sport | `sport` | 754 |
+| Media and communication | `media-communication` | 123 |
+| Food and gastronomy | `food` | 92 |
+| Technology and industry | `technology` | 356 |
+| Transport | `transport` | 376 |
+| Society and education | `social-sciences-education` | 254 |
+
+| Subjects per article | Articles |
+| ---: | ---: |
+| 1 | 15,599 |
+| 2 | 1,400 |
+| 3 | 197 |
+| 4 | 38 |
+| 5 | 13 |
+| 6 | 3 |
+| 7 | 1 |
+
+## Sources and revision semantics
+
+
+The source is the [Russian Wikipedia 20261001 dump](https://dumps.wikimedia.org/ruwiki/20261001/).
+The exact source files are listed below with their SHA-256 digests. Dump mirrors
+may later remove this dated snapshot; the filenames and digests identify the
+inputs independently of their continued availability.
+
+| File | SHA-256 |
+| --- | --- |
+| `ruwiki-20261001-page.sql.gz` | `24250cca6122fff02896a1ced0a85b7afa4d6be00fa119c169a5eeef3fbe5830` |
+| `ruwiki-20261001-page_props.sql.gz` | `fc9d5aeaf3487d932b82d18a16bc96f0e4e4702e1149cbbdc482eb509f6deb60` |
+| `ruwiki-20261001-categorylinks.sql.gz` | `1ecb32ffaff28a120b6a8f4297d4b228b65c49beb593eae022b5811ae41512e1` |
+| `ruwiki-20261001-linktarget.sql.gz` | `bc1f24b7b8eb06298cbe70fdfb010ec023586d05bd2d3403ba2370091e1edc4a` |
+| `ruwiki-20261001-pages-articles-multistream.xml.bz2` | `c22b6441176d2bc572ed6883abc6292fe168efca211f6cdd61d8772a78492a1b` |
+| `ruwiki-20261001-pages-articles-multistream-index.txt.bz2` | `17c6a4cebb90ecb2b0f881e04aa3b49356bd6ee6add802a7201b9ca1a9b093e3` |
+
+SQL provides selection, titles, page properties and category relationships. XML
+provides article content, `revision_id` and `revision_timestamp`. In the 17,413-article source collection, **11 articles**
+have differing SQL and XML revision IDs; the metadata and content should not be
+assumed to describe one atomic revision. Use `revision_url` to identify the exact
+text revision, and retain both IDs when recording provenance. Live pages and
+categories can differ from this snapshot.
+
+Readable extraction uses `mwparserfromhell` 0.7.2 and deterministic markup cleanup.
+It does not render Wikipedia or expand templates fully. Templates, infoboxes,
+tables, references, captions, formulae and formatting may be removed or simplified;
+fragments of markup or awkward text may remain. `wikitext` is retained so readers
+can inspect these losses or apply a different extraction procedure. Neither
+`raw_text` nor the category metadata is a manually corrected annotation.
+
+## Attribution, license and use
+
+
+Article text and wikitext are attributed to **Russian Wikipedia contributors**
+and distributed under [Creative Commons Attribution-ShareAlike 4.0](https://creativecommons.org/licenses/by-sa/4.0/).
+Each record's `revision_url` identifies the revision used; `page_url` provides
+access to the page and its edit history for contributor attribution. Follow
+attribution and share-alike requirements when redistributing text or adaptations,
+identify your changes, and preserve appropriate source links. Wikipedia can
+contain quotations or other third-party material with additional terms. Wikidata
+identifiers refer to [Wikidata](https://www.wikidata.org/wiki/Wikidata:Licensing),
+whose structured data is available under CC0; their presence does not change the
+license of the article text. Images and other media binaries are not included.
+
+Potential uses include Russian text analysis, inspection of markup extraction and
+research on Wikipedia editorial metadata or category relationships. This is a
+small, editorially selected portion of Russian Wikipedia, not a representative
+sample of Russian writing or an evenly balanced subject collection. Quality
+status does not guarantee accuracy, neutrality, completeness or suitability for
+any downstream application. Articles can contain sensitive, biased, outdated or
+offensive material. The partial subject labels described here do not establish a complete reference
+annotation. Downstream preprocessing, deduplication policy and research splits
+must be specified separately.
+
+## Published file identity
+
+| File | Compressed bytes | SHA-256 |
+| --- | ---: | --- |
+| `data/articles.jsonl.gz` | 413,342,335 | `9eb7efffe99fc7c9bc3f4b3eb9f0378d91f387081f97cf9abea9c1686797c1ed` |
+| `data/topics.jsonl.gz` | 2,671 | `c8cf602a924f18255e155cdcaa9357907461851e849113c72051c2b89484f22c` |
+
+The source article payload SHA-256 is
+`c51f9b6bee4c85f25ffb861060f52490a9276bae289d2aa2db7e0d10e2dda950`.