Add SpanishWikinewsClustering v1

README.md

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+---
+language:
+- es
+license: cc-by-2.5
+task_categories:
+- text-classification
+tags:
+- mteb
+- clustering
+- spanish
+- wikinews
+pretty_name: Spanish Wikinews Clustering
+size_categories:
+- n<1K
+configs:
+- config_name: s2s
+  data_files:
+  - split: test
+    path: s2s_test.jsonl.gz
+- config_name: p2p
+  data_files:
+  - split: test
+    path: p2p_test.jsonl.gz
+---
+
+# SpanishWikinewsClustering
+
+SpanishWikinewsClustering is a small, reproducible Spanish news clustering dataset for MTEB.
+It has two configurations sharing exactly the same 800 source articles and eight thematic
+labels: `s2s` evaluates titles; `p2p` evaluates each title followed by a cleaned lead.
+
+## Dataset summary
+
+| Configuration | Text | Rows | Labels | Split |
+|---|---|---:|---:|---|
+| `s2s` | Title | 800 | 8 | `test` |
+| `p2p` | Title + cleaned lead (maximum 2,000 characters) | 800 | 8 | `test` |
+
+The labels are Arte, cultura y entretenimiento; Ciencia y tecnología; Deportes;
+Desastres y accidentes; Economía y Negocios; Judicial; Política; and Sociedad. Each has
+exactly 100 rows. Files are flat JSONL with the fields `sentences` and `labels`, ready for
+MTEB's current `AbsTaskClustering` implementation.
+
+## Source, license, and attribution
+
+The source is the Spanish Wikinews Wikimedia dump in the `20260801` dump directory. The
+SHA-256 of `eswikinews-20260801-pages-articles.xml.bz2` is
+`bfb32ff73532cfffecf5db13e3712409ad9134459ea1d1927a8f93429be87109`.
+
+The source text is licensed under [CC BY 2.5](https://creativecommons.org/licenses/by/2.5/).
+This dataset is a derived work. Please attribute the original content to **contributors to
+Spanish Wikinews** and link to the [Wikimedia dump](https://dumps.wikimedia.org/eswikinews/).
+The cleaning, filtering, and sampling described below are additional modifications.
+
+## Construction and quality controls
+
+The build pipeline uses the same snapshot's article, page, categorylinks, and linktarget
+dumps. It keeps main-namespace non-redirect pages with exactly one thematic category after
+transitive category-graph propagation. It excludes 549 multi-item pages containing “Noticias
+breves”, removes exact and lexical near-duplicates (five-token-shingle Jaccard threshold
+0.85), and samples without replacement with seed 42.
+
+Author manual review was stratified by label (20 items × 8). In its last review round, 155 of
+160 sampled items were marked `pass`; one ambiguous and four wrong-label cases were removed.
+Those five selected items were replaced deterministically within their original labels, while
+the 155 approved items were retained. Earlier review rounds produced 45 conservative global
+title exclusions. LLM-assisted spot QA (Claude and Mistral, 16 items) was used only to surface
+items for human inspection; it was not used as a source of labels.
+
+This is **author manual review + LLM-assisted spot QA**, not independent human validation.
+
+## Limitations
+
+- The source is a small, historical, community-edited news corpus; it is not representative
+  of all Spanish varieties, contemporary news, or every topic.
+- Labels derive from Wikinews category structure and are intentionally strict/mono-label.
+- The dataset is intended for comparative embedding evaluation, not topic-classification
+  training or factual inference.
+
+## Citation
+
+```bibtex
+@misc{henriquez2026spanishwikinewsclustering,
+  author = {Henríquez, Clemente},
+  title = {SpanishWikinewsClustering},
+  year = {2026},
+  publisher = {Hugging Face},
+  url = {https://huggingface.co/datasets/ClementeH/SpanishWikinewsClustering}
+}
+```
+
+## Reproducibility
+
+The extraction and auditing pipeline is maintained in the ES-MTEB project:
+`evaluations/wikinews/build_dataset.py`. The accompanying `report.json` records input hashes,
+pool counts, filtering counts, parameters, and post-audit selected-item replacements.

p2p_test.jsonl.gz

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+version https://git-lfs.github.com/spec/v1
+oid sha256:f85093d281487387d4868b7c3134723cff0515b10e83d389a645f5ce6401664d
+size 427994

report.json

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+{
+  "pool_by_label": {
+    "Política": 1023,
+    "Economía y Negocios": 239,
+    "Deportes": 733,
+    "Ciencia y tecnología": 254,
+    "Desastres y accidentes": 595,
+    "Judicial": 204,
+    "Sociedad": 404,
+    "Arte, cultura y entretenimiento": 202
+  },
+  "rejected": {
+    "no_or_multi_label": 9925,
+    "redirect": 2255,
+    "manual_exclusion": 39,
+    "news_digest": 549
+  },
+  "manual_exclusions": {
+    "requested": 45,
+    "applied": 39
+  },
+  "selected_item_replacements": {
+    "requested": 5,
+    "applied": 5,
+    "titles": [
+      "CDC alerta la aparición de un virus altamente letal",
+      "Japón teme una insuficiencia eléctrica tras cerrar su planta nuclear",
+      "Gobierno japonés regalará boletos de avión a 10 mil extranjeros",
+      "Más de 200 muertos y 11 500 heridos por terremoto en Sichuan, China",
+      "Aludes de tierra sepultan aldeas en Nepal"
+    ]
+  },
+  "near_duplicates": {
+    "removed": 0,
+    "pairs": {},
+    "threshold": 0.85
+  },
+  "hashes": {
+    "eswikinews-20260801-pages-articles.xml.bz2": "bfb32ff73532cfffecf5db13e3712409ad9134459ea1d1927a8f93429be87109",
+    "eswikinews-20260801-page.sql.gz": "29e9d0856d2efdd5a459aac4526849d33f8c34f8555b6c13f0402886682cb64a",
+    "eswikinews-20260801-categorylinks.sql.gz": "28f7bf50e36bfe716aa7106935abf5b292bfe434d1756cb27822e235776f66fa",
+    "eswikinews-20260801-linktarget.sql.gz": "f72e7022ffb654ef45aa82cd92f586bd21296d8386a66f1fdaccc0fb53500e16"
+  },
+  "parameters": {
+    "articles": "/private/tmp/es-mteb-wikinews-20260801/eswikinews-20260801-pages-articles.xml.bz2",
+    "page_sql": "/private/tmp/es-mteb-wikinews-20260801/eswikinews-20260801-page.sql.gz",
+    "categorylinks_sql": "/private/tmp/es-mteb-wikinews-20260801/eswikinews-20260801-categorylinks.sql.gz",
+    "linktarget_sql": "/private/tmp/es-mteb-wikinews-20260801/eswikinews-20260801-linktarget.sql.gz",
+    "output_dir": "/private/tmp/es-mteb-wikinews-20260801/output",
+    "per_label": 100,
+    "seed": 42,
+    "min_words": 3,
+    "p2p_max_chars": 2000,
+    "near_duplicate_threshold": 0.85,
+    "exclude_csv": "evaluations/wikinews/audit/reviewer_1_replacements.csv",
+    "replace_selected_csv": "evaluations/wikinews/audit/final_audit_round3_replacements.csv"
+  }
+}

s2s_test.jsonl.gz

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+version https://git-lfs.github.com/spec/v1
+oid sha256:96217e48a57ebbbf3be81570471bbd13f7fbec80c432355c381ae6b128a4f839
+size 24920