Add normalized affiliation split

README.md

@@ -1,34 +1,87 @@
 ---
 license: cc0-1.0
 language:
-  - multilingual
+- multilingual
 tags:
-  - crossref
-  - affiliations
+- crossref
+- affiliations
 data_files:
-  - split: author
-    path: data/author-*.parquet
-  - split: editor
-    path: data/editor-*.parquet
-  - split: translator
-    path: data/translator-*.parquet
-  - split: chair
-    path: data/chair-*.parquet
-  - split: institution
-    path: data/institution-*.parquet
-  - split: project_investigator
-    path: data/project_investigator-*.parquet
-  - split: project_lead_investigator
-    path: data/project_lead_investigator-*.parquet
-  - split: project_co_lead_investigator
-    path: data/project_co_lead_investigator-*.parquet
-  - split: all
-    path: data/all-*.parquet
+- split: author
+  path: data/author-*.parquet
+- split: editor
+  path: data/editor-*.parquet
+- split: translator
+  path: data/translator-*.parquet
+- split: chair
+  path: data/chair-*.parquet
+- split: institution
+  path: data/institution-*.parquet
+- split: project_investigator
+  path: data/project_investigator-*.parquet
+- split: project_lead_investigator
+  path: data/project_lead_investigator-*.parquet
+- split: project_co_lead_investigator
+  path: data/project_co_lead_investigator-*.parquet
+- split: all
+  path: data/all-*.parquet
+- split: normalized
+  path:
+  - data/normalized-00000-of-00034.parquet
+  - data/normalized-00001-of-00034.parquet
+  - data/normalized-00002-of-00034.parquet
+  - data/normalized-00003-of-00034.parquet
+  - data/normalized-00004-of-00034.parquet
+  - data/normalized-00005-of-00034.parquet
+  - data/normalized-00006-of-00034.parquet
+  - data/normalized-00007-of-00034.parquet
+  - data/normalized-00008-of-00034.parquet
+  - data/normalized-00009-of-00034.parquet
+  - data/normalized-00010-of-00034.parquet
+  - data/normalized-00011-of-00034.parquet
+  - data/normalized-00012-of-00034.parquet
+  - data/normalized-00013-of-00034.parquet
+  - data/normalized-00014-of-00034.parquet
+  - data/normalized-00015-of-00034.parquet
+  - data/normalized-00016-of-00034.parquet
+  - data/normalized-00017-of-00034.parquet
+  - data/normalized-00018-of-00034.parquet
+  - data/normalized-00019-of-00034.parquet
+  - data/normalized-00020-of-00034.parquet
+  - data/normalized-00021-of-00034.parquet
+  - data/normalized-00022-of-00034.parquet
+  - data/normalized-00023-of-00034.parquet
+  - data/normalized-00024-of-00034.parquet
+  - data/normalized-00025-of-00034.parquet
+  - data/normalized-00026-of-00034.parquet
+  - data/normalized-00027-of-00034.parquet
+  - data/normalized-00028-of-00034.parquet
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+  - data/normalized-00030-of-00034.parquet
+  - data/normalized-00031-of-00034.parquet
+  - data/normalized-00032-of-00034.parquet
+  - data/normalized-00033-of-00034.parquet
 ---
 
 # Crossref unique affiliations
 
 Exact organization strings extracted from Crossref snapshot `2026-07`.
 
-No trimming, case folding, or Unicode normalization is performed. Repeated leaf
+For the nine exact-string splits, no trimming, case folding, or Unicode normalization is performed. Repeated leaf
 occurrences are counted, and empty decoded strings alone are excluded.
+
+<!-- normalized-split:start -->
+## Normalized split
+
+The `normalized` split groups the exact strings in `all` after applying this
+normalization contract:
+
+1. Transliterate Unicode text to ASCII with Unidecode.
+2. Convert letters to lowercase.
+3. Remove punctuation while preserving internal whitespace.
+4. Trim surrounding whitespace.
+
+Rows that become empty are excluded and counted in
+`normalization_metadata.json`. Each output row contains the normalized string,
+the contributing Crossref sources in registry order, the summed occurrence
+count, and the number of distinct raw affiliations that collapsed into it.
+<!-- normalized-split:end -->

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normalization_metadata.json

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+{
+  "generated_at": "2026-08-27T06:41:20.392019+00:00",
+  "implementation": {
+    "path": "jobs/normalize.py",
+    "sha256": "675acb638294dbfbcabcdbcecb467b04b106ede846a2c880960b419ebb0d5724"
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+    "name": "comet-datacite-ascii-v1",
+    "steps": [
+      "transliterate Unicode text to ASCII with Unidecode",
+      "convert letters to lowercase",
+      "remove punctuation while preserving internal whitespace",
+      "trim surrounding whitespace"
+    ],
+    "unidecode_version": "1.4.0"
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+    "Unidecode": "1.4.0",
+    "duckdb": "1.5.5",
+    "huggingface-hub": "1.28.0",
+    "numpy": "2.3.5",
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