Linked Data publiceren

Transcription

1 Linked Data publiceren Paul Hermans Henk Vanstappen Marco Streefkerk The Big Picture 2

2 The Big Picture 2 The Big Picture 3

3 The Big Picture 3 The Big Picture 3

4 The Big Picture 4 The Big Picture 4

5 The Big Picture 4 The Big Picture 4

6 The Big Picture 4 Datasets toelichting Henk 5

7 Datasets 6 Datasets 6

8 Use URI's as names for things Defining URI's for Entities 8

9 Defining URI's for Entities 8 Defining URI's for Entities 8

10 Defining URI's for Entities 8 Defining URI's for Entities 8

11 Defining URI's for Entities 8 Defining URI's for entities 9

12 Defining URI's for entities 9 URI 10

13 URI 10 Describing things with RDF

14 Data Model Subject Predicate Object 12 Data Subject Predicate Object 13

15 Data 14 Subject Predicate Object alternative_number description documentation related_object related_object physical_description current_owner content.motif.general content.motif.specific content.subject content.subject object.name priref title creator creator Data 14 Subject Predicate Object alternative_number description documentation related_object related_object physical_description current_owner content.motif.general content.motif.specific content.subject content.subject object.name priref title creator creator

16 Predicates: own namespace Subject Predicate Object Predicates: own namespace Subject Predicate Object

17 Choosing and using vocabularies Finding vocabularies 17

18 Finding vocabularies 17 Finding vocabularies 17

19 Finding vocabularies 17 Vocabs in the cultural domain Toelichting Henk 18

20 Predicates: existing vocabularies Subject Predicate Object or Prefixes to the rescue Subject Predicate Object dcterms:identifier dcterms:description dcterms:bibliographiccitation dcterms:relation dcterms:relation dcterms:extent dcterms:rightsholder dcterms:subject dcterms:subject dcterms:subject dcterms:subject dc:type dcterms:identifier dcterms:title dcterms:creator dcterms:creator rdf:type 20

21 Case: URIref - URIref - literal Subject Predicate object Subject Predicate Object 21 Case: URIref - URIref - literal Subject Predicate object Subject Predicate Object dcterms:identifier "LB 2115/1" dcterms:description "Maakt deel uit van..." dcterms:extent dcterms:subject "religieuze kunst" dc:type "schilderij" dcterms:title "Adam en Eva (naar Titiaan)" 22

22 Case: URIref - URIref - literal + language tag Subject Predicate object nl Subject Predicate Object 23 Case: URIref - URIref - literal + language tag Subject Predicate object nl Subject Predicate Object dcterms:title "Adam en Eva (naar Titiaan)"@nl dcterms:description "Maakt deel uit van..."@nl 24

23 Case: URIref - URIref - literal + datatype Subject Predicate object date Subject Predicate Object 25 Case: URIref - URIref - literal + datatype Subject Predicate object date Subject Predicate Object dcterms:created "1597^^xsd:gYear" 26

24 Data Quality 27 Case: URIref - URIref - URIref Subject Predicate Object Subject Predicate Object dcterms:extent dcterms:format dcterms:relation dcterms:bibliographiccitation dcterms:rightsholder dcterms:creator 28

25 Full description Subject Predicate Object "LB 2115/1" "siglo de Rubens en el Museo del Prado : catalogo razonado de pintura flamenca del siglo 17; Díaz Padrón, Matías; p ; nr. 1692" _:A "religieuze kunst" "Oud Testament" "Adam" "Eva" "schilderij" "1692" "Adam en Eva (naar Titiaan)" Several serializations 30

26 Several serializations 30 Several serializations 30

27 Conversion from source to RDF RDBMS to RDF 32

28 RDBMS to RDF 32 RDBMS to RDF 32

29 RDBMS to RDF 32 RDBMS to RDF 32

30 RDBMS to RDF 32 RDBMS to RDF 32

31 RDBMS to RDF 32 Spreadsheet, CSV to RDF 33

32 Spreadsheet, CSV to RDF 33 XML XSLT XML XSLT proces RDF/XML 34

33 Result: RDF 35 Defining URI's for RDF descriptions 36

34 Defining URI's for RDF descriptions 36 URI's 37

35 URI's 37 URI's 37

36 URI's.rdf 37 Relations between Thing and Description Subject Predicate Object rdf htm 38

37 RDF Validation 39 RDF Validation 39

38 Make sure people can lookup the names Make sure people can lookup the names

39 Publishing non-information resources 41 Publishing non-information resources 41

40 Publishing non-information resources 41 Publishing non-information resources 42

41 Publishing non-information resources 43 Publishing non-information resources 43

42 Publishing non-information resources 43 Publishing non-information resources 43

43 Publishing non-information resources 43 from SPARQL endpoint to Linked Data 44

44 Linked Data Validation 45 Include links to other URI's

45 Types of links Relationships 47 Types of links Relationships Identity 47

46 Types of links Relationships Vocabulary Identity 47 Identifying relevant sources 48

47 Identifying relevant sources 48 Identifying relevant sources 48

48 Relevant sources in our domain Henk 49 Reconciliation tools 50

49 Advanced topics Publish data about your dataset 52

50 Advertising your linked dataset 53 Advertising your linked dataset 53

51 Data Quality 54 What about semantics? 55

52 Q&A 56