relations matter: maintaining and publishing links in ......relations matter: maintaining and...

Relations matter: Maintaining and Publishing Links in Library Metadata

Lars G. Svensson

| 24 | Relations Matter | February 21, 20171

2 | 24 | Relations Matter | February 21, 2017

On the web, users expect that there are links leading themto the information they need

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We as libraries create links all the time, e.g. by linking titlesto authority data

Composite Description

Part

Composite Description

Whole

Work Person

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The links in libraries are usually only local and only visible in the catalogue


Libraries must be part of a global link infra-structure, not restricted to their own data

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In the German National Library, we have implementeddifferent solutions to this

ILSinternalformat

PICA

IN OUT

Manualcataloguing

Import:MARC 21ONIXXMetaDissPlusJATS

MARC 21MODSDublin CoreLinked Data

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In order to publish links, someone must create them…

Photo by The Hamster Factor (CC BY-NC-ND): http://www.flickr.com/photos/disaster_area/3454110496/

<owl:AnnotationProperty rdf:about="http://d-nb.info/standards/elementset/gnd#marc21equivalent"><rdfs:label xml:lang="de">MARC 21 Entsprechung</rdfs:label><rdfs:label xml:lang="en">MARC 21 equivalent</rdfs:label><rdfs:comment xml:lang="de">Gibt die MARC 21 Entsprechung des Elements im GND-MARC-Format wieder.</rdfs:comment> <rdfs:comment xml:lang="en">Expresses the MARC 21 equivalent for this element in the GND MARC format.</rdfs:comment></owl:AnnotationProperty>

@prefix void: <http://rdfs.org/ns/void#> .@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .@prefix owl: <http://www.w3.org/2002/07/owl#> .@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .@prefix dcterms: <http://purl.org/dc/terms/> .@prefix foaf: <http://xmlns.com/foaf/0.1/> .

<mx:datafield tag="153" ind2=" " ind1=" "><mx:subfield code="a">220.531</mx:subfield><mx:subfield code="y">1</mx:subfield><mx:subfield code="a">7</mx:subfield><mx:subfield code="e">220.531</mx:subfield><mx:subfield code="j">Paraphrasen</mx:subfield><mx:subfield code="9">ess=ren</mx:subfield></mx:datafield></mx:record>


Cataloguers create links in our CBS

[...]100 Elbogen, Ismar375 m400 Elbogen, Yiṣhạq Moše400 Elbogen, Jiṣhāq Möšeh

400 Elbogen, Itamar400 Elbogen, J.400 Elbogen, I.400 ʾLBWGN, Jiṣḥaq Mōšeh400 Elbogen, Yitsḥaḳ Mosheh

400 $T01$UHebr%% יצחק משה, אלבוגן

548 $a01.09.1874$b01.08.1943$4datx548 1874$b1943$4datl550 !040250989!Historiker [Ts1]$4berc551 !943330920!Ostrzeszów [Tg1]$4ortg551 !040420116!New York, NY [Tg1]$4orts551 !040787044!USA [Tg1]$4ortx$Z1938667 7667 Maschinell verknuepft mit DBL-Retro-Titeldaten[...]

[...]2105 95,G03,09662242 |o|7226673623000 !116446706!Elbogen, Ismar [Tp1]3211 Der @jüdische Gottesdienst in seiner geschichtlichen Entwicklung$rengl.4000 Jewish liturgy : a comprehensive history / by Ismar Elbogen. [Transl. by Raymond P. 4020 #11#1. Engl. ed.4030 Philadelphia ; Jerusalem : Jewish Publ. Soc.4030 New York ; Jerusalem : Jewish Theological Seminary of America4060 XXI, 501 S.4062 27 cm4201 Literaturverz. S. 461 - 4734700 |FE|H5050 %13+200+220+2905100 !040216713!Gottesdienst [Ts1]5101 !041140877!Judentum [Ts1][...]

pica3://cbs.dnb.de:1035,1,7803508/?/zoe+/12+040250989








Automated processes handling digital publications are partof the equation, too

[…]4180 IFLA Publications ; 1624201 Lizenzpflichtig4233 *a*4243 Erscheint auch als$nOnline-Ausgabe$i978-3-11-031700-84243 Erscheint auch als$i978-3-11-031701-54243 Erscheint auch als$nDruck-Ausgabe!1032799889!--Aa--: Linked data and user interaction4256 Elektronische Reproduktion von$i97831103169264700 |PE|*Parallelverknüpfung wurde automatisch erstellt5050 020$Ep$D2016-05-275050 020$Em$Hdnb$K0,993$D2016-05-275050 020$Ea$Honx$D2016-05-265051 $KK_A4_06_20151019_en5052 $f570$F0,759$g530$G0,718$D2016-05-275100 !040064395!Bibliothek [Ts1]5101 !1021290033!Linked Data [Ts1]5102 !041385349!Benutzer [Ts1]5103 !041259092!Mensch-Maschine-Kommunikation [Ts1]5104 !041215605!Recherche [Ts1]5105 !041323157!Suchverfahren [Ts1][…]

[…]5100 !040291057!Kabbala [Ts1]5101 !041205375!Kabbalistik [Ts1]5102 :z Geschichte5109 (DE-101){DE-101}5110 !041140877!Judentum [Ts1]5111 !04041003X!Mystik [Ts1]5112 :z Geschichte5119 (DE-101){DE-101}5540 [FA]!041140877!Judentum [Ts1]5540 [GND]!964308118!Zizit [Ts1]$K0,009$D2016-04-22$R2$T2016-065540 [GND]!040097994!Chassidismus [Ts1]$K0,005$D2016-04-22$R2$T5540 [GND]!041205375!Kabbalistik [Ts1]$K0,005$D2016-04-22$R3$T20165540 [GND]!040216845!Gottesname [Ts1]$K0,004$D2016-04-22$R1$T5540 [GND]!040216624!Gott [Ts1]$K0,004$D2016-04-22$R1$T2016-065540 [GND]!119235587!Yisraʾel ben Eliʿezer Baʿal Shem Ṭov [Tp1]$K0,003

5540 [GND]!041910117!Zohar [Tu1]$K0,003$D2016-04-22$R2$T2016-5540 [GND]!041336992!Talmud [Tu1]$K0,003$D2016-04-22$R1$T20165540 [GND]!11900173X!Akiba ben Joseph [Tp1]$K0,002$D2016-04-22$R5540 [GND]!040291057!Kabbala [Ts1]$K0,615$D2016-04-22$R3$T20165540 [GND]!04041003X!Mystik [Ts1]$K0,300$D2016-04-22$R3$T2016-5540 [GND]!042243726!Sefirot [Ts1]$K0,016$D2016-04-22$R2$T2016[…]











pica3://cbs.dnb.de:1035,1,7803508/?/zoe+/12+04041003X















A further source is to import links from third parties (e. g. Wikipedia)

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ikip

edia

.org

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mar_

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ogen

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16446706


The data in our CBS can be exported in several different formats

Conversion Seriali-

sation

ILS

Data Conversion Service

Conversion

I

n

d

e

x Enrichment

Database

Wikidata

RDFMARC 21EntityFactsPDF

------------http://d-nb.infoSRUOAIData DumpsData Shop

VIAFClassification

Alignments

GND-ID-ListsSlide adapted from Jana Hentschke


MARC 21 is still a very important format

024 7 $ahttp://d-nb.info/gnd/116446706 $2uri[…]100 1 $aElbogen, Ismar$d1874-1943375 $a1$2iso5218[…]548 $a01.09.1874-01.08.1943

$94:datx$wr$iExakte Lebensdaten548 $a1874-1943$94:datl$wr$iLebensdaten550 $0(DE-101)040250989

$0(DE-588)4025098-2$0http://d-nb.info/gnd/4025098-2$aHistoriker $94:berc$wr$iCharakteristischer Beruf

551 $0(DE-101)943330920$0(DE-588)4363227-0$0http://d-nb.info/gnd/4363227-0$aOstrzeszów $94:ortg $wr $iGeburtsort

551 $0(DE-101)040420116$0(DE-588)4042011-5$0http://d-nb.info/gnd/4042011-5$aNew York, NY $94:orts $wr $iSterbeort

100 1 $0(DE-588)116446706$0http://d-nb.info/gnd/116446706$0(DE-101)116446706$aElbogen, Ismar$d1874-1943$4aut

245 00$aJewish liturgy$ba comprehensive history$cby Ismar Elbogen. [Transl. by Raymond P. Scheindlin. Based on the orig. 1913

250 $a1. Engl. ed.259 $a11264 1$aPhiladelphia$aJerusalem$bJewish Publ. Soc.

$aNew York$aJerusalem$bJewish Theological Seminary of America$c1993

300 $aXXI, 501 S.$c27 cm500 $aLiteraturverz. S. 461 - 473648 7$aGeschichte$2gnd650 7$0(DE-588)4021671-8

$0http://d-nb.info/gnd/4021671-8$0(DE-101)040216713$aGottesdienst$2gnd

650 7$0(DE-588)4114087-4$0http://d-nb.info/gnd/4114087-4$0(DE-101)041140877$aJudentum$2gnd


<http://d-nb.info/gnd/116446706> a gndo:DifferentiatedPerson ;foaf:page <http://de.wikipedia.org/wiki/Ismar_Elbogen> ;owl:sameAs <http://dbpedia.org/resource/Ismar_Elbogen> , <http://viaf.org/viaf/71500476>;gndo:gndIdentifier "116446706" ;gndo:oldAuthorityNumber "(DE-588a)116446706" , "(DE-588a)130915076" , "(DE-588c)7558592-3" ;gndo:gndSubjectCategory <http://d-nb.info/standards/vocab/gnd/gnd-sc#16.1p> ;gndo:geographicAreaCode <http://d-nb.info/standards/vocab/gnd/geographic-area-code#XA-

DXDE> ;gndo:biographicalOrHistoricalInformation "Breslau, Univ., Phil. Diss., 1898"@de , "Dt. Historiker; Berlin;

Prof. f. judische Geschichte, geb. in Schildberg <Posen>"@de ;gndo:placeOfBirth <http://d-nb.info/gnd/4363227-0> ;gndo:placeOfDeath <http://d-nb.info/gnd/4042011-5> ;gndo:placeOfExile <http://d-nb.info/gnd/4078704-7> ;gndo:gender <http://d-nb.info/standards/vocab/gnd/gender#male> ;gndo:dateOfBirth "1874-09-01"^^<http://www.w3.org/2001/XMLSchema#date> ;gndo:dateOfDeath "1943-08-01"^^<http://www.w3.org/2001/XMLSchema#date> ;gndo:professionOrOccupation <http://d-nb.info/gnd/4025098-2> ;gndo:variantNameForThePerson "Elbogen, Yishạq Mose" ;gndo:variantNameEntityForThePerson [

gndo:forename "Yishạq Mos e" ;gndo:surname "Elbogen" .

] ;gndo:variantNameForThePerson "Elbogen, Jishaq Mo seh" ;gndo:variantNameEntityForThePerson [

gndo:forename "Jishaq Mo seh" ;

Non-libraries are more keen on the RDF representation


{"@context" : "http://hub.culturegraph.org.appr/entityfacts/context/v1/entityfacts.jsonld","@type" : "person","@id" : "http://d-nb.info/gnd/116446706","preferredName" : "Ismar Elbogen", "surname" : "Elbogen", "forename" : "Ismar","variantName" : [ "Yishạq Mos e Elbogen", "יצחק משה אלבוגן " ],"dateOfBirth" : "1. September 1874","dateOfDeath" : "1. August 1943","placeOfBirth" : [{ "@id" : "http://d-nb.info/gnd/4363227-0", "preferredName" : "Ostrzeszow" } ],"placeOfDeath" : [{ "@id" : "http://d-nb.info/gnd/4042011-5", "preferredName" : "New York, NY" } ],"professionOrOccupation" : [ {

"@id" : "http://d-nb.info/gnd/4025098-2", "preferredName" : "Historiker„ } ],"gender" : { "@id" : "http://d-nb.info/standards/vocab/gnd/gender#male", "label" : "Mann" },"depiction" : {

"@id" : "https://commons.wikimedia.org/wiki/Special:FilePath/Ismar_Elbogen.jpg", },

"sameAs" :[ { "@id" : "http://catalogue.bnf.fr/ark:/12148/cb12521261q","collection" : {

"abbr" : "BNF", "name" : "Bibliotheque nationale de France","publisher" : "Bibliotheque nationale de France", "icon" : http://www.bnf.fr/bnf_dev/icono/favicon.ico" },

{ "@id" : "http://kulturportal-west-ost.eu/persons/elbogen-ismar/","collection" : {

"abbr" : "OSTDEBIB", "name" : "Ostdeutsche Biographie", "publisher" : "Kulturportal West-Ost" }},

EntityFacts offers fact sheets about persons, places and things from the GND

htt

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ulture

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ph.o

rg.a

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entity

facts

/116446706


The exported data is used in a plethora of contexts

15


museum-digital has an interesting use of the RDF data fromthe GND

16

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The geospatial coordinates have been exploited by game-creators


And EntityFacts help people find and display authoritativefacts

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/116446706


So where do all those links take us?

Photo

by

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(CC

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Librarians continuously create links that often are visible only in the library catalogue

By Š

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edia

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Libraries must be part of a global link infra-structure, not restricted to their own data

Photo

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Library data

Otherdata

Somedata


Third parties can enchance the data fromlibraries and re-publish that information

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And by doing this we contribute to a global infrastructure of well-curated facts

Pic

ture

by

Dave G

ray (

CC B

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D):

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/flic.k

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Because after all, everything is somehow related toeverything else!

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