As of 2022-03-07, the Wikidata property Academic Tree ID (P2381) is used on 19,768 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P214 VIAF ID 15,465
 0.0056
P7859 WorldCat Identities ID 14,276
 0.0077
P244 Library of Congress authority ID 13,509
 0.0100
P213 ISNI 13,399
 0.0096
P1006 Nationale Thesaurus voor Auteurs ID 11,015
 0.0211
P646 Freebase ID 10,683
 0.0024
P227 GND ID 10,570
 0.0081
P269 IdRef ID 10,352
 0.0186
P1207 NUKAT ID 10,342
 0.0193
P268 Bibliothèque nationale de France ID 7,959
 0.0134
P691 NKCR AUT ID 7,166
 0.0156
P3987 SHARE Catalogue author ID 6,111
 0.0332
P2163 FAST ID 5,934
 0.0133
P1015 NORAF ID 5,462
 0.0309
P549 Mathematics Genealogy Project ID 5,433
 0.0197
P8189 National Library of Israel J9U ID 5,266
 0.0282
P7902 Deutsche Biographie (GND) ID 4,753
 0.0074
P7293 PLWABN ID 4,570
 0.0130
P496 ORCID iD 4,404
 0.0025
P3430 SNAC ARK ID 4,325
 0.0285
P271 CiNii author ID (books) 3,964
 0.0390
P648 Open Library ID 3,882
 0.0135
P2671 Google Knowledge Graph ID 3,861
 0.0005
P1280 CONOR.SI ID 3,325
 0.0275
P1960 Google Scholar author ID 3,137
 0.0432
P1315 NLA Trove people ID 3,137
 0.0261
P1153 Scopus author ID 3,109
 0.0061
P1556 zbMATH author ID 2,844
 0.0476
P3065 RERO ID 2,805
 0.0314
P4955 MR Author ID 2,793
 0.0167
P1417 Encyclopædia Britannica Online ID 2,767
 0.0147
P950 Biblioteca Nacional de España ID 2,718
 0.0127
P349 National Diet Library ID 2,617
 0.0167
P8179 Canadiana Name Authority ID 2,608
 0.0364
P949 National Library of Israel ID 2,593
 0.0273
P409 Libraries Australia ID 2,531
 0.0306
P906 SELIBR ID 2,486
 0.0266
P3368 Prabook ID 2,486
 0.0102
P6594 Guggenheim fellows ID 2,468
 0.0738
P5587 Libris-URI 2,453
 0.0172
P1580 University of Barcelona authority ID (obsolete) 2,404
 0.0314
P5019 Brockhaus Enzyklopädie online ID 2,248
 0.0422
P9984 CANTIC ID 2,194
 0.0300
P5380 National Academy of Sciences member ID 2,177
 0.1006
P3222 NE.se ID 2,128
 0.0348
P1273 CANTIC ID (old) 2,127
 0.0299
P1695 NLP ID (unique) 2,004
 0.0260
P1296 Gran Enciclopèdia Catalana ID 1,980
 0.0150
P8034 Vatican Library VcBA ID 1,977
 0.0157
P7982 Hrvatska enciklopedija ID 1,855
 0.0444

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P5380 National Academy of Sciences member ID 2,177
 0.1006
P6594 Guggenheim fellows ID 2,468
 0.0738
P1556 zbMATH author ID 2,844
 0.0476
P3360 Nobel Prize People Nomination ID 1,068
 0.0469
P7982 Hrvatska enciklopedija ID 1,855
 0.0444
P1960 Google Scholar author ID 3,137
 0.0432
P3413 Leopoldina member ID 1,043
 0.0422
P5019 Brockhaus Enzyklopädie online ID 2,248
 0.0422
P271 CiNii author ID (books) 3,964
 0.0390
P8179 Canadiana Name Authority ID 2,608
 0.0364
P10242 Lur Encyclopedic Dictionary ID 1,173
 0.0363
P8313 Den Store Danske ID 1,737
 0.0361
P8947 Museo Galileo authority ID 1,220
 0.0349
P7666 Visuotinė lietuvių enciklopedija ID 1,263
 0.0348
P3222 NE.se ID 2,128
 0.0348
P5375 BIU Santé person ID 1,011
 0.0344
P1375 NSK ID 1,320
 0.0337
P8024 Nobel Laureate API ID 676
 0.0337
P3987 SHARE Catalogue author ID 6,111
 0.0332
P7305 Online PWN Encyclopedia ID 1,687
 0.0325
P8349 Proleksis enciklopedija ID 969
 0.0316
P1580 University of Barcelona authority ID (obsolete) 2,404
 0.0314
P3065 RERO ID 2,805
 0.0314
P3348 National Library of Greece ID 1,636
 0.0309
P1015 NORAF ID 5,462
 0.0309
P3219 Encyclopædia Universalis ID 1,572
 0.0307
P409 Libraries Australia ID 2,531
 0.0306
P9984 CANTIC ID 2,194
 0.0300
P1273 CANTIC ID (old) 2,127
 0.0299
P2428 RePEc Short-ID 770
 0.0288
P7699 National Library of Lithuania ID 1,288
 0.0286
P3430 SNAC ARK ID 4,325
 0.0285
P8189 National Library of Israel J9U ID 5,266
 0.0282
P6551 Physics History Network ID 568
 0.0281
P2734 Unz Review author ID 889
 0.0278
P1280 CONOR.SI ID 3,325
 0.0275
P949 National Library of Israel ID 2,593
 0.0273
P2924 Great Russian Encyclopedia Online ID 1,839
 0.0271
P2454 KNAW past member ID 567
 0.0270
P1263 NNDB people ID 1,478
 0.0270
P906 SELIBR ID 2,486
 0.0266
P6706 De Agostini ID 1,268
 0.0266
P6821 Uppsala University Alvin ID 1,299
 0.0266
P1368 LNB ID 1,744
 0.0262
P1315 NLA Trove people ID 3,137
 0.0261
P1695 NLP ID (unique) 2,004
 0.0260
P6394 ELNET ID 649
 0.0254
P4081 BHL creator ID 1,215
 0.0252
P2070 Fellow of the Royal Society ID 476
 0.0226
P3365 Treccani ID 977
 0.0224