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 |
Full-population concentration
Occurrences and DOI-affiliation pairs are ranked separately. Boundary ties use normalized-affiliation ascending order and do not expand a requested row count.
| Measure |
Requested rows |
Selected rows |
Cumulative count |
Population share |
| Occurrences |
1 |
1 |
178348948 |
0.533043 |
| Occurrences |
2 |
2 |
275211083 |
0.822541 |
| Occurrences |
10 |
10 |
285951202 |
0.854641 |
| Occurrences |
100 |
100 |
295095438 |
0.881971 |
| DOI-affiliation pairs |
1 |
1 |
41649276 |
0.372088 |
| DOI-affiliation pairs |
2 |
2 |
83298500 |
0.744175 |
| DOI-affiliation pairs |
10 |
10 |
86039159 |
0.768659 |
| DOI-affiliation pairs |
100 |
100 |
90695652 |
0.81026 |
No-NIFS sensitivity
This view excludes only DOI prefix 10.57451; category membership remains based on global Crossref overlap.
| Category |
Affiliations |
Affiliation share |
Occurrences |
Occurrence share |
DOI-affiliation pairs |
Pair share |
| datacite_only |
1194519 |
0.784955 |
15082454 |
0.254682 |
9638578 |
0.338423 |
| overlap |
327248 |
0.215045 |
44138182 |
0.745318 |
18842263 |
0.661577 |
No-NIFS 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 |
134.877 |
4 |
14 |
55 |
161 |
1419.53 |
4063817 |
No-NIFS DOI-affiliation pair 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 |
57.5779 |
2 |
8 |
33 |
92 |
689 |
610513 |
No-NIFS 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 |
No-NIFS concentration
| Measure |
Requested rows |
Selected rows |
Cumulative count |
Population share |
| Occurrences |
1 |
1 |
4063817 |
0.0686216 |
| Occurrences |
2 |
2 |
6535456 |
0.110358 |
| Occurrences |
10 |
10 |
11359062 |
0.191809 |
| Occurrences |
100 |
100 |
19892142 |
0.335899 |
| DOI-affiliation pairs |
1 |
1 |
610513 |
0.0214359 |
| DOI-affiliation pairs |
2 |
2 |
1197272 |
0.0420378 |
| DOI-affiliation pairs |
10 |
10 |
3017319 |
0.105942 |
| DOI-affiliation pairs |
100 |
100 |
7314484 |
0.256821 |
Excluded population
| Measure |
Count |
| Occurrences |
275365699 |
| DOI-affiliation pairs |
83453199 |
| Valid ROR-assigned occurrences |
275365699 |
| Invalid explicit ROR-assigned occurrences |
0 |
| Valid ROR-assigned DOI-affiliation pairs |
83453199 |
| Invalid explicit ROR-assigned DOI-affiliation pairs |
0 |
| Distinct DOI population |
41649224 |
| Normalized affiliations touched |
4 |
| normalized affiliation removed entirely |
1 |
Per-prefix overlap summaries
Quantiles treat each DOI prefix as one observation; weighted means use the corresponding occurrence or DOI-affiliation-pair denominator.
| Rate |
Prefixes |
Minimum |
p25 |
Median |
p75 |
Maximum |
Weighted mean |
| Occurrence overlap |
2865 |
0 |
0.5 |
0.93593 |
1 |
1 |
0.954922 |
| DOI-affiliation-pair overlap |
2865 |
0 |
0.499085 |
0.914894 |
1 |
1 |
0.913891 |
ROR assignment coverage
Only explicit valid canonical ROR IDs are ranked. Invalid explicit assignments remain in coverage counts.
| Measure |
Full population |
No-NIFS |
| Exact affiliations with a valid canonical ROR ID |
71311 |
71310 |
| Normalized affiliations with a valid canonical ROR ID |
68644 |
68643 |
| Valid ROR-assigned occurrences |
294617048 |
19251349 |
| Valid ROR-assigned occurrence share |
0.880541 |
0.325078 |
| Valid ROR-assigned DOI-affiliation pairs |
90873572 |
7420373 |
| Valid ROR-assigned DOI-affiliation-pair share |
0.811849 |
0.260539 |
| Invalid explicit ROR-assigned occurrences |
14017 |
14017 |
| Invalid explicit ROR-assigned occurrence share |
4.18935e-05 |
0.000236691 |
| Invalid explicit ROR-assigned DOI-affiliation pairs |
8085 |
8085 |
| Invalid explicit ROR-assigned DOI-affiliation-pair share |
7.223e-05 |
0.000283875 |
| Valid canonical ROR IDs |
40595 |
40595 |
Most common explicit ROR IDs
The tables show the first 20 of the 100 retained JSON ranking rows. ROR DOI support counts distinct DOIs and can sum above valid-assigned DOI-affiliation pairs when one pair has different IDs across occurrences.
By occurrence support
By distinct DOI support
No-NIFS by occurrence support
No-NIFS by distinct DOI support
