The European Library Open Dataset

RDF Statistics for the dataset "Collection of the National Digital Library of Portugal - Free Access"

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
Web Resource http://www.europeana.eu/schemas/edm/WebResource 39,941
Place http://iflastandards.info/ns/fr/frbr/frbrer/C1010 23,764
Person http://rdaregistry.info/Elements/c/C10004 19,286
Bibliographic Resource http://purl.org/dc/terms/BibliographicResource 13,710
Corporate Body http://rdaregistry.info/Elements/c/C10005 11,694
Time Span http://www.europeana.eu/schemas/edm/TimeSpan 5,369
Event http://iflastandards.info/ns/fr/frbr/frbrer/C1009 5,116
Agent http://rdaregistry.info/Elements/c/C10002 4,150
Concept http://iflastandards.info/ns/fr/frbr/frbrer/C1007 1,804
Media Type Or Extent http://purl.org/dc/terms/MediaTypeOrExtent 264
Family http://rdaregistry.info/Elements/c/C10008 29

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
rights http://purl.org/dc/terms/rights 66,555
sameAs http://www.w3.org/2002/07/owl#sameAs 53,104
format http://purl.org/dc/terms/format 31,544
noteOnResource http://rdaregistry.info/Elements/u/P60470 26,672
placeOfPublication http://rdaregistry.info/Elements/u/P60163 23,631
subject http://purl.org/dc/terms/subject 21,481
label http://www.w3.org/2000/01/rdf-schema#label 20,491
intendedAudience http://rdaregistry.info/Elements/u/P60520 19,658
dateOfPublication http://rdaregistry.info/Elements/u/P60073 19,289
identifierForThePerson http://rdaregistry.info/Elements/a/P50094 19,237
nameOfThePerson http://rdaregistry.info/Elements/a/P50111 19,237
provenance http://purl.org/dc/terms/provenance 15,323
languageOfTheContent http://rdaregistry.info/Elements/u/P60099 14,158
object http://www.europeana.eu/schemas/edm/object 13,430
titleProper http://rdaregistry.info/Elements/m/P30156 13,371
Is Shown At http://www.europeana.eu/schemas/edm/isShownAt 13,307
modeOfIssuance http://rdaregistry.info/Elements/m/P30003 13,274
contentType http://rdaregistry.info/Elements/u/P60049 13,199
publisher http://rdaregistry.info/Elements/u/P60444 12,907
dateOfBirth http://rdaregistry.info/Elements/a/P50121 12,533
nameOfThePlace http://rdaregistry.info/Elements/u/P60366 11,930
nameOfTheCorporateBody http://rdaregistry.info/Elements/a/P50032 11,593
statementOfResponsibility http://rdaregistry.info/Elements/u/P60339 11,181
dateOfDeath http://rdaregistry.info/Elements/a/P50120 10,898
extent http://purl.org/dc/terms/extent 10,848
creator http://rdaregistry.info/Elements/u/P60447 9,441
longitude http://www.w3.org/2003/01/geo/wgs84_pos#long 6,556
latitude http://www.w3.org/2003/01/geo/wgs84_pos#lat 6,556
Table Of Contents http://purl.org/dc/terms/tableOfContents 6,433
periodOfActivityOfThePerson http://rdaregistry.info/Elements/a/P50098 5,514
begin http://www.europeana.eu/schemas/edm/begin 5,358
end http://www.europeana.eu/schemas/edm/end 5,127
description http://purl.org/dc/terms/description 5,107
identifier http://purl.org/dc/terms/identifier 4,670
Alternative Title http://purl.org/dc/terms/alternative 4,286
nameOfTheAgent http://rdaregistry.info/Elements/u/P60368 4,150
printer http://rdaregistry.info/Elements/u/P60418 3,736
formerOwner http://rdaregistry.info/Elements/u/P60401 3,113
contributor http://rdaregistry.info/Elements/u/P60398 2,517
titleOfTheWork http://rdaregistry.info/Elements/w/P10088 2,344
titleOfThePerson http://rdaregistry.info/Elements/a/P50110 2,106
otherDetailsOfCartographicContent http://rdaregistry.info/Elements/u/P60498 1,737
Has Part http://purl.org/dc/terms/hasPart 1,392
abstract http://purl.org/dc/terms/abstract 885
seriesStatement http://rdaregistry.info/Elements/u/P60328 851
author http://rdaregistry.info/Elements/u/P60434 634
editor http://rdaregistry.info/Elements/u/P60393 498
translationOf http://rdaregistry.info/Elements/u/P60244 403
editionStatement http://rdaregistry.info/Elements/m/P30107 389
translator http://rdaregistry.info/Elements/u/P60385 284
lithographer http://rdaregistry.info/Elements/u/P60414 220
cartographer http://rdaregistry.info/Elements/u/P60425 166
dissertationOrThesisInformation http://rdaregistry.info/Elements/u/P60489 156
director http://rdaregistry.info/Elements/u/P60449 139
seller http://rdaregistry.info/Elements/u/P60092 134
binder http://rdaregistry.info/Elements/u/P60458 110
mediaType http://rdaregistry.info/Elements/u/P60050 108
illustrator http://rdaregistry.info/Elements/u/P60396 108
dedicatee http://rdaregistry.info/Elements/u/P60455 88
engraver http://rdaregistry.info/Elements/u/P60410 86
wholePartResourceRelationshipWith http://rdaregistry.info/Elements/u/P60714 83
composer http://rdaregistry.info/Elements/u/P60426 79
writerOfAddedText http://rdaregistry.info/Elements/u/P60380 73
degreeGrantingInstitution http://rdaregistry.info/Elements/u/P60060 64
compiler http://rdaregistry.info/Elements/u/P60428 61
photographer http://rdaregistry.info/Elements/u/P60429 39
degreeSupervisor http://rdaregistry.info/Elements/u/P60420 38
Date Accepted http://purl.org/dc/terms/dateAccepted 32
nameOfTheFamily http://rdaregistry.info/Elements/a/P50061 27
addressee http://rdaregistry.info/Elements/u/P60456 26
writerOfAddedCommentary http://rdaregistry.info/Elements/u/P60390 25
dateOfConferenceEtc http://rdaregistry.info/Elements/a/P50039 21
identifierForTheCorporateBody http://rdaregistry.info/Elements/a/P50006 21
continuedBy http://rdaregistry.info/Elements/u/P60306 21
donor http://rdaregistry.info/Elements/u/P60091 21
sponsoringBody http://rdaregistry.info/Elements/u/P60451 21
arrangerOfMusic http://rdaregistry.info/Elements/u/P60379 17
continuationOf http://rdaregistry.info/Elements/u/P60576 14
recordingEngineer http://rdaregistry.info/Elements/u/P60395 13
host http://rdaregistry.info/Elements/u/P60146 12
librettist http://rdaregistry.info/Elements/u/P60478 11
commentator http://rdaregistry.info/Elements/u/P60151 9
inscriber http://rdaregistry.info/Elements/u/P60460 9
artist http://rdaregistry.info/Elements/u/P60431 8
lyricist http://rdaregistry.info/Elements/u/P60477 6
annotator http://rdaregistry.info/Elements/u/P60464 4
choreographer http://rdaregistry.info/Elements/u/P60433 3
producer http://rdaregistry.info/Elements/u/P60441 3
Is Version Of http://purl.org/dc/terms/isVersionOf 2
performer http://rdaregistry.info/Elements/u/P60387 2
bookDesigner http://rdaregistry.info/Elements/u/P60409 1
distributor http://rdaregistry.info/Elements/u/P60438 1
continuedInPartBy http://rdaregistry.info/Elements/u/P60199 1
continuationInPartOf http://rdaregistry.info/Elements/u/P60276 1
designer http://rdaregistry.info/Elements/u/P60424 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://purl.org/dc/terms/URI 53,248
http://www.w3.org/2001/XMLSchema#dateTime 26,615
http://purl.org/dc/terms/UDC 20,385
http://rdvocab.info/termList/ModeIssue 13,274
http://purl.org/dc/terms/ISO3166 19

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 14,155
MARC Countries 11,889
Geonames 6,556
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