Publish normalized affiliation overlap

README.md

@@ -51,23 +51,30 @@ This CC0 dataset partitions normalized affiliation strings by exact equality aft
 
 ## Sources
 
-- DataCite: [cometadata/datacite-unique-affiliations](https://huggingface.co/datasets/cometadata/datacite-unique-affiliations/tree/cd82076cdf7eff64736f6771760ffe788f64af0d) at immutable revision `cd82076cdf7eff64736f6771760ffe788f64af0d`.
+- DataCite: [cometadata/datacite-unique-affiliations](https://huggingface.co/datasets/cometadata/datacite-unique-affiliations/tree/0c9f57c68610b855cb52d891d57fc1ec9e281675) at immutable revision `0c9f57c68610b855cb52d891d57fc1ec9e281675`.
 - Crossref: [cometadata/crossref-unique-affiliations](https://huggingface.co/datasets/cometadata/crossref-unique-affiliations/tree/0cb1e2d7a02a0c587721fa6179b7b501d30eb02c) at immutable revision `0cb1e2d7a02a0c587721fa6179b7b501d30eb02c`.
 
 ## Splits
 
-- `datacite_only`: normalized affiliations present only in DataCite (1193736 rows).
-- `crossref_only`: normalized affiliations present only in Crossref (32776005 rows).
-- `overlap`: normalized affiliations present in both sources (327529 rows).
+- `datacite_only`: normalized affiliations present only in DataCite (1194519 rows).
+- `crossref_only`: normalized affiliations present only in Crossref (32776285 rows).
+- `overlap`: normalized affiliations present in both sources (327249 rows).
 
 ## Counts and integrity identities
 
-- DataCite source rows: 1521265.
+- DataCite source rows: 1521768.
+- DataCite occurrence count: 334586335.
+- DataCite raw affiliation count: 1681526.
+- DataCite DOI-affiliation pair count: 111934040.
 - Crossref source rows: 33103534.
-- Union rows: 34297270.
-- DataCite identity: 1521265 = 1193736 + 327529.
-- Crossref identity: 33103534 = 32776005 + 327529.
-- Union identity: 34297270 = 1193736 + 32776005 + 327529.
+- Union rows: 34298053.
+- DataCite identity: 1521768 = 1194519 + 327249.
+- Crossref identity: 33103534 = 32776285 + 327249.
+- Union identity: 34298053 = 1194519 + 32776285 + 327249.
+
+## Per-row DataCite usage
+
+Every output row has `normalized_affiliation`, `datacite_occurrence_count`, `datacite_doi_count`, and `datacite_raw_affiliation_count`. The three DataCite measures carry the normalized occurrence, distinct DOI-affiliation pair, and raw-affiliation-row counts respectively. They are zero for `crossref_only` rows.
 
 ## Normalization
 
@@ -78,7 +85,7 @@ Membership uses the shared normalization contract, also recorded in `overlap_met
 3. punctuation is removed while internal whitespace is preserved.
 4. surrounding whitespace is trimmed; empty results are excluded.
 
-Generated at `2026-08-28T08:00:22.399653+00:00`.
+Generated at `2026-08-28T23:46:58.015119+00:00`.
 
 ## Loading
 

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+    "datacite_raw_affiliation_count": 1681526,
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+      "datacite_occurrence_count": "uint64",
+      "datacite_raw_affiliation_count": "uint64",
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+        "sha256": "a186c2e551a4075bec2b041b50e7ff4755e0ca1720e76027729b50f727dd6657"
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@@ -269,7 +300,7 @@
     },
     "python_version": "3.12.12"
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@@ -320,8 +351,9 @@
       ],
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+      "total_distinct_dois": 132801254
     }
   }
 }

stats/datacite_affiliation_usage.md

@@ -0,0 +1,39 @@
+# DataCite affiliation usage distributions
+
+Category DOI-affiliation pair totals are sums of per-affiliation DOI counts.
+
+An occurrence count is the number of normalized DataCite occurrences for an affiliation. DOI count is the number of distinct DOI-affiliation pairs for an affiliation. The raw affiliation count is the number of pre-normalization affiliation rows represented by an affiliation.
+
+individual DOI prevalence = datacite_doi_count / total_distinct_datacite_dois
+
+Category DOI-affiliation pair totals are not mutually exclusive unique DOI populations.
+
+Distribution percentiles use DuckDB quantile_cont with Type 7 continuous interpolation.
+
+## Category totals and shares
+
+| Category | Affiliations | Affiliation share | Occurrences | Occurrence share | DOI-affiliation pairs | Pair share |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: |
+| datacite_only | 1194519 | 0.784955 | 15082454 | 0.0450779 | 9638578 | 0.0861094 |
+| overlap | 327249 | 0.215045 | 319503881 | 0.954922 | 102295462 | 0.913891 |
+
+## Occurrence count distribution summaries
+
+| Category | Minimum | Mean | Median | p75 | p90 | p95 | p99 | Maximum |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| datacite_only | 1 | 12.6264 | 2 | 5 | 12 | 23 | 92 | 649388 |
+| overlap | 1 | 976.333 | 4 | 14 | 55 | 161 | 1420.52 | 178348948 |
+
+## DOI count distribution summaries
+
+| Category | Minimum | Mean | Median | p75 | p90 | p95 | p99 | Maximum |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| datacite_only | 1 | 8.069 | 2 | 3 | 8 | 16 | 65 | 176161 |
+| overlap | 1 | 312.592 | 2 | 8 | 33 | 92 | 689 | 41649276 |
+
+## Raw affiliation count distribution summaries
+
+| Category | Minimum | Mean | Median | p75 | p90 | p95 | p99 | Maximum |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| datacite_only | 1 | 1.06089 | 1 | 1 | 1 | 2 | 2 | 20 |
+| overlap | 1 | 1.26594 | 1 | 1 | 2 | 2 | 4 | 46 |