The European Library Open Dataset

RDF Statistics for the dataset "National Library of Portugal Online catalogue"

Content Statistics


Introduction

This document provides some statistical information regarding the usage of data elements in the dataset and the links to external datasets. For detailed information regarding the data elements used for The European Library Open Dataset, please consult the document: “ Linked Data at The European Library: Data Model and Vocabularies ”.


Usage of classes

The following table presents how many instances of each class exist in the dataset.


Class URI Number of RDF Triples
Place http://iflastandards.info/ns/fr/frbr/frbrer/C1010 2,235,286
Person http://rdaregistry.info/Elements/c/C10004 1,439,088
Web Resource http://www.europeana.eu/schemas/edm/WebResource 1,233,112
Bibliographic Resource http://purl.org/dc/terms/BibliographicResource 1,224,028
Corporate Body http://rdaregistry.info/Elements/c/C10005 1,180,653
Event http://iflastandards.info/ns/fr/frbr/frbrer/C1009 291,821
Agent http://rdaregistry.info/Elements/c/C10002 240,112
Concept http://iflastandards.info/ns/fr/frbr/frbrer/C1007 180,840
Time Span http://www.europeana.eu/schemas/edm/TimeSpan 125,577
Media Type Or Extent http://purl.org/dc/terms/MediaTypeOrExtent 56,551
Family http://rdaregistry.info/Elements/c/C10008 422

Usage of properties

The following table presents how many triples exist in the dataset for all the properties used.


Property URI Number of RDF Triples
sameAs http://www.w3.org/2002/07/owl#sameAs 3,164,997
placeOfPublication http://rdaregistry.info/Elements/u/P60163 2,199,209
label http://www.w3.org/2000/01/rdf-schema#label 1,636,937
format http://purl.org/dc/terms/format 1,555,865
nameOfThePerson http://rdaregistry.info/Elements/a/P50111 1,428,958
identifierForThePerson http://rdaregistry.info/Elements/a/P50094 1,419,303
dateOfPublication http://rdaregistry.info/Elements/u/P60073 1,391,562
subject http://purl.org/dc/terms/subject 1,383,228
intendedAudience http://rdaregistry.info/Elements/u/P60520 1,313,563
languageOfTheContent http://rdaregistry.info/Elements/u/P60099 1,245,896
statementOfResponsibility http://rdaregistry.info/Elements/u/P60339 1,225,337
nameOfTheCorporateBody http://rdaregistry.info/Elements/a/P50032 1,176,274
publisher http://rdaregistry.info/Elements/u/P60444 1,170,638
nameOfThePlace http://rdaregistry.info/Elements/u/P60366 1,142,046
provenance http://purl.org/dc/terms/provenance 1,138,909
titleProper http://rdaregistry.info/Elements/m/P30156 1,109,645
rights http://purl.org/dc/terms/rights 1,107,725
modeOfIssuance http://rdaregistry.info/Elements/m/P30003 1,077,789
contentType http://rdaregistry.info/Elements/u/P60049 1,071,268
extent http://purl.org/dc/terms/extent 999,194
longitude http://www.w3.org/2003/01/geo/wgs84_pos#long 962,747
latitude http://www.w3.org/2003/01/geo/wgs84_pos#lat 962,747
creator http://rdaregistry.info/Elements/u/P60447 884,250
dateOfBirth http://rdaregistry.info/Elements/a/P50121 613,988
noteOnResource http://rdaregistry.info/Elements/u/P60470 416,767
identifier http://purl.org/dc/terms/identifier 356,496
dateOfDeath http://rdaregistry.info/Elements/a/P50120 314,536
seriesStatement http://rdaregistry.info/Elements/u/P60328 293,064
nameOfTheAgent http://rdaregistry.info/Elements/u/P60368 240,112
description http://purl.org/dc/terms/description 232,453
editionStatement http://rdaregistry.info/Elements/m/P30107 227,112
Has Part http://purl.org/dc/terms/hasPart 180,394
translator http://rdaregistry.info/Elements/u/P60385 144,289
Table Of Contents http://purl.org/dc/terms/tableOfContents 140,702
author http://rdaregistry.info/Elements/u/P60434 139,800
begin http://www.europeana.eu/schemas/edm/begin 125,166
translationOf http://rdaregistry.info/Elements/u/P60244 116,328
Is Shown At http://www.europeana.eu/schemas/edm/isShownAt 99,780
object http://www.europeana.eu/schemas/edm/object 98,030
dissertationOrThesisInformation http://rdaregistry.info/Elements/u/P60489 96,037
editor http://rdaregistry.info/Elements/u/P60393 87,968
contributor http://rdaregistry.info/Elements/u/P60398 82,639
end http://www.europeana.eu/schemas/edm/end 74,450
Alternative Title http://purl.org/dc/terms/alternative 69,580
titleOfTheWork http://rdaregistry.info/Elements/w/P10088 62,118
titleOfThePerson http://rdaregistry.info/Elements/a/P50110 61,021
degreeSupervisor http://rdaregistry.info/Elements/u/P60420 44,880
degreeGrantingInstitution http://rdaregistry.info/Elements/u/P60060 42,145
printer http://rdaregistry.info/Elements/u/P60418 40,482
periodOfActivityOfThePerson http://rdaregistry.info/Elements/a/P50098 39,889
illustrator http://rdaregistry.info/Elements/u/P60396 38,670
formerOwner http://rdaregistry.info/Elements/u/P60401 31,701
writerOfAddedText http://rdaregistry.info/Elements/u/P60380 30,925
director http://rdaregistry.info/Elements/u/P60449 25,294
identifierForTheCorporateBody http://rdaregistry.info/Elements/a/P50006 20,622
Date Accepted http://purl.org/dc/terms/dateAccepted 19,697
dateOfConferenceEtc http://rdaregistry.info/Elements/a/P50039 19,430
photographer http://rdaregistry.info/Elements/u/P60429 15,077
compiler http://rdaregistry.info/Elements/u/P60428 14,972
abstract http://purl.org/dc/terms/abstract 14,694
host http://rdaregistry.info/Elements/u/P60146 9,461
mediaType http://rdaregistry.info/Elements/u/P60050 6,756
otherDetailsOfCartographicContent http://rdaregistry.info/Elements/u/P60498 5,958
writerOfAddedCommentary http://rdaregistry.info/Elements/u/P60390 4,570
audience http://purl.org/dc/terms/audience 2,370
composer http://rdaregistry.info/Elements/u/P60426 2,289
annotator http://rdaregistry.info/Elements/u/P60464 2,194
lyricist http://rdaregistry.info/Elements/u/P60477 1,785
continuationOf http://rdaregistry.info/Elements/u/P60576 1,491
continuedBy http://rdaregistry.info/Elements/u/P60306 1,473
seller http://rdaregistry.info/Elements/u/P60092 1,455
inscriber http://rdaregistry.info/Elements/u/P60460 1,370
Is Version Of http://purl.org/dc/terms/isVersionOf 1,188
commentator http://rdaregistry.info/Elements/u/P60151 1,186
librettist http://rdaregistry.info/Elements/u/P60478 1,157
arrangerOfMusic http://rdaregistry.info/Elements/u/P60379 1,155
wholePartResourceRelationshipWith http://rdaregistry.info/Elements/u/P60714 850
narrator http://rdaregistry.info/Elements/u/P60153 688
artist http://rdaregistry.info/Elements/u/P60431 649
cartographer http://rdaregistry.info/Elements/u/P60425 576
lithographer http://rdaregistry.info/Elements/u/P60414 557
dedicatee http://rdaregistry.info/Elements/u/P60455 541
engraver http://rdaregistry.info/Elements/u/P60410 512
bookDesigner http://rdaregistry.info/Elements/u/P60409 499
binder http://rdaregistry.info/Elements/u/P60458 469
addressee http://rdaregistry.info/Elements/u/P60456 435
relation http://purl.org/dc/terms/relation 432
interviewer http://rdaregistry.info/Elements/u/P60430 360
supplementTo http://rdaregistry.info/Elements/u/P60259 355
donor http://rdaregistry.info/Elements/u/P60091 333
nameOfTheFamily http://rdaregistry.info/Elements/a/P50061 326
singer http://rdaregistry.info/Elements/u/P60156 279
sponsoringBody http://rdaregistry.info/Elements/u/P60451 277
supplement http://rdaregistry.info/Elements/u/P60281 244
performer http://rdaregistry.info/Elements/u/P60387 189
interviewee http://rdaregistry.info/Elements/u/P60432 175
choreographer http://rdaregistry.info/Elements/u/P60433 144
producer http://rdaregistry.info/Elements/u/P60441 124
distributor http://rdaregistry.info/Elements/u/P60438 122
continuationInPartOf http://rdaregistry.info/Elements/u/P60276 122
conductor http://rdaregistry.info/Elements/u/P60141 88
succeededBy http://rdaregistry.info/Elements/u/P60278 81
continuedInPartBy http://rdaregistry.info/Elements/u/P60199 77
designer http://rdaregistry.info/Elements/u/P60424 75
issuedWith http://rdaregistry.info/Elements/u/P60256 68
mergerOf http://rdaregistry.info/Elements/u/P60505 63
subseriesOf http://rdaregistry.info/Elements/u/P60192 44
splitInto http://rdaregistry.info/Elements/u/P60503 37
recordingEngineer http://rdaregistry.info/Elements/u/P60395 25
absorptionOf http://rdaregistry.info/Elements/u/P60574 19
mergee http://rdaregistry.info/Elements/u/P60682 16
actor http://rdaregistry.info/Elements/u/P60142 14
absorbedBy http://rdaregistry.info/Elements/u/P60247 12
dancer http://rdaregistry.info/Elements/u/P60144 11
replacementInPartOf http://rdaregistry.info/Elements/u/P60479 9
translatedAs http://rdaregistry.info/Elements/u/P60280 9
replacedInPartBy http://rdaregistry.info/Elements/u/P60103 6
subseries http://rdaregistry.info/Elements/u/P60316 5
absorbedInPartBy http://rdaregistry.info/Elements/u/P60248 4
separatedFrom http://rdaregistry.info/Elements/u/P60277 4
Date Copyrighted http://purl.org/dc/terms/dateCopyrighted 3
Bibliographic Citation http://purl.org/dc/terms/bibliographicCitation 3
absorptionInPartOf http://rdaregistry.info/Elements/u/P60575 3
replacementOf http://rdaregistry.info/Elements/u/P60480 2
Date Created http://purl.org/dc/terms/created 1
replacedBy http://rdaregistry.info/Elements/u/P60104 1

Usage of data types

The following table presents how many triples exist in the dataset which use specified RDF data types.


RDF Data Type Number of RDF Triples
http://www.w3.org/2001/XMLSchema#dateTime 2,215,465
http://purl.org/dc/terms/UDC 1,275,076
http://rdvocab.info/termList/ModeIssue 1,077,789
http://purl.org/dc/terms/ISO3166 758
http://purl.org/dc/terms/DDC 30

Existing links to external LOD datasets

The dataset is linked to external datasets of different kinds which are published as linked open data. The following tables presents existing to published subject heading systems, classification systems, ontologies and other datasets.


Subject Heading Systems

Subject Heading System Language Number of RDF triples
Library of Congress Subject Headings English 0
Rameau (data.bnf.fr) French 0
Gemeinsame Normdatei German 0
Library of Congress Children’s Subject Headings English 0

Classification Systems

Classification System Number of RDF triples
Library of Congress Classification 0
Dewey Decimal Classification 0

Other datasets and ontologies

Dataset/Ontology Number of RDF triples
ISO639-2 Languages 1,245,227
MARC Countries 1,099,299
Geonames 962,742
VIAF Virtual Union Authority File 0

Contact

We welcome feedback, and are particularly keen to hear about applications of the dataset, and requests for improvement. Your feedback will contribute to guide our future work.

Questions and requests about linked open data at The European Library may be sent by email to info@theeuropeanlibrary.org , or on twitter @europeanlibrary