Refresh public dataset card and geographic coverage

.gitattributes

@@ -1571,3 +1571,4 @@ wikidata/facts/suriname-latest.parquet filter=lfs diff=lfs merge=lfs -text
 wikipedia/documents/swaziland-latest.parquet filter=lfs diff=lfs merge=lfs -text
 wikipedia/sections/swaziland-latest.parquet filter=lfs diff=lfs merge=lfs -text
 wikidata/facts/swaziland-latest.parquet filter=lfs diff=lfs merge=lfs -text
+assets/geographic_text_presence.png filter=lfs diff=lfs merge=lfs -text

README.md

@@ -41,20 +41,17 @@ configs:
         path: wikidata/facts/*.parquet
 dataset_info:
   polygon_count: 868861
-  unique_wikidata_count: 839928
+  unique_wikidata_count: 820063
   article_count: 1198523
 ---
 
 # NoeFlandre/osm-polygon-wikidata-only
 
-OSM polygons tagged with a `wikidata=*` reference, enriched with Wikidata descriptions and Wikipedia article text for every valid language-Wikipedia sitelink, with full text and no per-QID article cap. Core and text tables are published as:
+OSM polygons tagged with a `wikidata=*` reference, enriched with Wikipedia and Wikivoyage text across all available languages. The published tables are:
 
 - `polygons/<stem>.parquet` — one row per polygon
-- `wikipedia/documents/<stem>.parquet` — one lossless row per unique Wikipedia article
-- `polygon_articles/<stem>.parquet` — many-to-many link table
-
-Additional derived text and fact tables are:
-
+- `wikipedia/documents/<stem>.parquet` — one row per unique Wikipedia article
+- `polygon_articles/<stem>.parquet` — polygon-to-Wikipedia many-to-many links
 - `wikipedia/sections/<stem>.parquet`
 - `wikivoyage/documents/<stem>.parquet` and `wikivoyage/sections/<stem>.parquet`
 - `wikidata/facts/<stem>.parquet`
@@ -65,6 +62,14 @@ Maintained by **Noé Flandre**.
 
 ## Coverage
 
+### Polygons with Wikipedia or Wikivoyage text
+
+![Polygons with Wikipedia or Wikivoyage text](assets/geographic_text_presence.png)
+
+Each point is a dataset polygon with at least one non-empty Wikipedia document or a non-empty Wikivoyage document sharing its Wikidata entity. A polygon is shown once even when several documents qualify.
+
+### All dataset polygons
+
 ![Coverage Map](assets/coverage_map.png)
 
 ## Geographic coverage
@@ -92,15 +97,13 @@ Both maps below aggregate dataset polygons into H3 cells at the same resolution.
 | Polygon-article links | 1,307,889 |
 | Languages | 351 |
 | Geographic regions | 291 |
-| Core tables size | 5.7 GB |
+| Polygon and link tables size | 5.7 GB |
 | Wikipedia documents | 1,198,523 |
 | Wikipedia sections | 6,331,113 |
 | Wikivoyage documents | 10,107 |
 | Wikivoyage sections | 212,540 |
 | Wikidata facts | 2,277,391 |
-| Fully augmented regions | 291 |
 | Wikipedia + Wikivoyage document words | 428,004,026 |
-| Augmentation tables size | 9.1 GB |
 | Total Parquet size | 10.7 GB |
 
 Wikipedia + Wikivoyage document words sums the full Wikipedia and Wikivoyage documents and excludes section rows because sections duplicate document text.
@@ -158,26 +161,14 @@ Top 20 languages by Wikipedia document count:
 - 10 language(s) appear in fewer than 10 Wikipedia document(s)
 - 5 language(s) appear in fewer than 5 polygons
 
-## Augmentation coverage
-
-| Metric | Count | Percentage |
-| --- | ---: | ---: |
-| Core regions | 291 | 100.0% |
-| Fully augmented | 291 | 100.0% |
-| Partially augmented | 0 | 0.0% |
-| Not augmented | 0 | 0.0% |
-| Orphan sidecar stems | 0 | - |
-
-Augmentation is additive and a zero-row sidecar may still represent a completed region. Orphan sidecars (a sidecar with no matching core polygon) do not count toward core regions.
-
 ## Storage accounting
 
 Core tables size and total storage size are additive:
 
 | Metric | Bytes | Human-readable |
 | --- | ---: | --- |
-| Core tables size | 1,709,721,973 | 1.6 GB |
-| Augmentation tables size | 9,811,576,576 | 9.1 GB |
+| Polygon and link tables size | 1,709,721,973 | 1.6 GB |
+| Wikipedia, Wikivoyage, and Wikidata tables size | 9,811,576,576 | 9.1 GB |
 | Total Parquet size | 11,521,298,549 | 10.7 GB |
 
 ## Wikipedia text corpus
@@ -197,6 +188,8 @@ Core tables size and total storage size are additive:
 | Estimated tokens | 708,956,091 |
 | Regions / files represented | 291 |
 
+Estimated tokens use a transparent approximation: `characters // 4` per non-empty text row, with a minimum of one token per non-empty row.
+
 ### Sections
 
 | Metric | Value |
@@ -215,6 +208,8 @@ Core tables size and total storage size are additive:
 | Estimated tokens | 944,148,731 |
 | Regions / files represented | 291 |
 
+Estimated tokens use a transparent approximation: `characters // 4` per non-empty text row, with a minimum of one token per non-empty row.
+
 ### Languages
 
 | Language | Documents | % of total |
@@ -248,6 +243,8 @@ Core tables size and total storage size are additive:
 | Estimated tokens | 19,851,298 |
 | Regions / files represented | 291 |
 
+Estimated tokens use a transparent approximation: `characters // 4` per non-empty text row, with a minimum of one token per non-empty row.
+
 ### Sections
 
 | Metric | Value |
@@ -266,6 +263,8 @@ Core tables size and total storage size are additive:
 | Estimated tokens | 23,361,733 |
 | Regions / files represented | 291 |
 
+Estimated tokens use a transparent approximation: `characters // 4` per non-empty text row, with a minimum of one token per non-empty row.
+
 ### Languages
 
 | Language | Documents | % of total |
@@ -322,6 +321,21 @@ Core tables size and total storage size are additive:
 English labels are requested where available; multilingual labels are preserved verbatim in the Parquet column `property_labels`.
 
 
+## Geographic distribution by continent
+
+Polygon centroids are assigned to Natural Earth countries and continents. Document counts are distinct within each continent; polygons are counted once.
+
+| Continent | Polygons | Wikipedia documents | Wikivoyage documents | Polygons with Wikipedia text | Polygons with Wikipedia or Wikivoyage text | Text coverage |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: |
+| Africa | 9,492 | 44,292 | 508 | 6,497 | 6,499 | 68.5% |
+| Antarctica | 254 | 1,684 | 1 | 251 | 251 | 98.8% |
+| Asia | 101,279 | 157,926 | 1,327 | 34,518 | 34,543 | 34.1% |
+| Europe | 634,613 | 705,576 | 4,587 | 235,923 | 236,061 | 37.2% |
+| North America | 38,346 | 68,339 | 761 | 27,535 | 27,538 | 71.8% |
+| Oceania | 19,788 | 30,545 | 393 | 11,449 | 11,450 | 57.9% |
+| South America | 17,020 | 54,734 | 691 | 11,577 | 11,578 | 68.0% |
+| Unassigned | 48,069 | 104,547 | 1,607 | 23,185 | 23,206 | 48.3% |
+
 ## Schema
 
 ### `polygons`
@@ -496,6 +510,8 @@ English labels are requested where available; multilingual labels are preserved
 - **OpenStreetMap** polygons: (c) OpenStreetMap contributors, licensed under [ODbL 1.0](https://opendatacommons.org/licenses/odbl/).
 - **Wikidata** entity data: [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/).
 - **Wikipedia** article text: licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) by the respective Wikipedia editors; attributed inline per article.
+- **Wikivoyage** text: licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) by the respective Wikivoyage editors; attributed inline per document.
+- **Natural Earth** Admin-0 geography: public-domain 1:110m reference data used only to assign centroid-based continent statistics and draw context maps.
 
 ## How to load