Sparql...

... Protocol and RDF Query Language

• 4 typer spørringer...
• WHERE for å begrense resultatsettet
• FILTER, ORDER, JOIN, SORT, AGGREGATE
• GRAPH for "containers"
• SERVICE for samlet søk

Tripler og prefix

Tripel

<http://ex.org/Book1> a bibo:Book ;
<http://purl.org/dc/terms/title> "Boka" .

Med prefix

prefix ex: <http://ex.org/Book1>
prefix dct: <http://purl.org/dc/terms/>

prefix bibo: <http://purl.org/ontology/bibo/>

ex:Book1 a bibo:Book ;
dct:title "Boka" .

SELECT

SELECT * 
WHERE
  { ?s ?p ?o }
LIMIT 1

ASK

ASK
WHERE
  { ?bok a bibo:Book }

ASK

prefix bs: <http://livedata.bibsys.no/>​

ASK
WHERE
  { ?bok bs:format "Bok" }

CONSTRUCT

prefix bs: <http://livedata.bibsys.no/>​

prefix bibo: <http://purl.org/ontology/bibo/>​

CONSTRUCT 
  { ?s a bibo:Book  } 
WHERE
  { ?s bs:format "Bok" }

DESCRIBE

DESCRIBE 
<http://livedata.bibsys.no/biblio/900563966>

Finne bestand 

prefix fabio: <http://purl.org/spar/fabio/>
prefix bs: <http://livedata.bibsys.no/>​

SELECT DISTINCT 
  ?location (COUNT(?holding) AS ?total) 
WHERE {
  ?holding bs:location ?location .
}
GROUP BY ?location

UBBs samlinger

prefix fabio: <http://purl.org/spar/fabio/>
prefix bs: <http://livedata.bibsys.no/>​

SELECT DISTINCT 
  ?ubbcol (COUNT(?holding) AS ?total) 
WHERE {
  ?holding bs:location "UBB" ;
    bs:collection ?ubbcol .
}
GROUP BY ?ubbcol

UBBSPES bestand

prefix fabio: <http://purl.org/spar/fabio/>
prefix bs: <http://livedata.bibsys.no/>​

SELECT 
  ?biblio ?title 
WHERE {
  ?holding bs:collection "1120109" ;
  fabio:isManifestationOf ?biblio .
  ?biblio dc:title ?title .
}
GROUP BY ?title ?biblio
ORDER BY ?title

Kortfattet jordbes...

prefix fabio: <http://purl.org/spar/fabio/>

DESCRIBE ?biblio ?holding
WHERE {  
  ?biblio dc:title "Kortfattet jordbeskrivelse eller 
                    geographie til brug i landsbyskolerne" .
  ?holding fabio:isManifestationOf ?biblio .
}

Hva er Marcus?

Spesialsamlingenes nye fellesløsning både for registrering og formidling av spesialsamlinger.

• Basert på lenkede data

• Henter data fra mange kilder

marcus.uib.no​ 

marcus.uib.no

sparql.ub.uib.no

<http://data.ub.uib.no/instance/photograph/ubb-kk-n-518-041>
        a       <http://data.ub.uib.no/ontology/Photograph> ;
        <http://data.ub.uib.no/ontology/cataloguer>
                <http://data.ub.uib.no/Cataloguer_4> ;
        <http://data.ub.uib.no/ontology/hasRepresentation>
                <http://data.ub.uib.no/instance/aggregation/ubb-kk-n-518-041> ;
        <http://data.ub.uib.no/ontology/hasThumbnail>
                "http://data.ub.uib.no/files/bs/ubb/ubb-kk/ubb-kk-n/ubb-kk-n-518/ubb-kk-n-518-041/jpg/ubb-kk-n-518-041_th.jpg"^^<http://www.w3.org/2001/XMLSchema#anyuri> ;
        <http://data.ub.uib.no/ontology/showWeb>
                true ;
        <http://purl.org/NET/c4dm/event.owl#producedIn>
                <http://data.ub.uib.no/instance/event/63d92c7d-74c9-4087-9969-af053f3fe1ee> ;
        <http://purl.org/dc/terms/available>
                "2014-08-19"^^<http://www.w3.org/2001/XMLSchema#date> ;
        <http://purl.org/dc/terms/created>
                "1922"^^<http://www.w3.org/2001/XMLSchema#gYear> ;
        <http://purl.org/dc/terms/identifier>
                "ubb-kk-n-518-041"^^<http://www.w3.org/2001/XMLSchema#string> ;
        <http://purl.org/dc/terms/isPartOf>
                <http://data.ub.uib.no/instance/collection/ubb-kk-n> ;
        <http://purl.org/dc/terms/spatial>
                <http://data.ub.uib.no/instance/spatialthing/959d4dca-8d38-46f4-8962-1d0c7c94688a> , <http://data.ub.uib.no/instance/spatialthing/cf717543-2ee5-48c6-9b83-016a16aedddc> ;
        <http://purl.org/dc/terms/subject>
                <http://data.ub.uib.no/topic/7b2d2fa6-73f5-4075-b394-20e64aa5fb54> , <http://data.ub.uib.no/topic/5a098fbd-c3dd-431d-a77e-5fc533081335> , <http://data.ub.uib.no/topic/bf4f6df5-05f7-4f0e-93ea-f1f1917a675a> , <http://data.ub.uib.no/topic/8a98f33f-8d85-461c-ad33-c248106bba07> , <http://data.ub.uib.no/topic/7d2b9388-8eba-4a4a-b72b-ab15c5c820e8> , <http://data.ub.uib.no/topic/f4086d26-fdcd-4d35-bbef-dc862ada345e> , <http://data.ub.uib.no/topic/f0c29c87-d2d5-4362-92b3-a6aa275d801d> ;
        <http://purl.org/dc/terms/title>
                "10de. nationale landsturnstevne i Bergen, juni 1922"^^<http://www.w3.org/2001/XMLSchema#string> ;
        <http://xmlns.com/foaf/0.1/maker>
                <http://data.ub.uib.no/instance/company/0d52fbb1-4cdd-4fae-8e5f-cc680f6764fe> .

Hvordan sy sammen data

"Signaturen"

URI

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 dct: <http://purl.org/dc/terms/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX bibo: <http://purl.org/ontology/bibo/>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX ubbont: <http://data.ub.uib.no/ontology/>

CONSTRUCT 
  { <http://data.ub.uib.no/instance/book/ubb-romertall-oktav-xii-1820> ?p ?o .
    <http://data.ub.uib.no/instance/book/ubb-romertall-oktav-xii-1820> owl:sameAs ?biblio .}
WHERE
  { GRAPH ?G
      { <http://data.ub.uib.no/instance/book/ubb-romertall-oktav-xii-1820> ?p ?o
        OPTIONAL  
          { <http://data.ub.uib.no/instance/book/ubb-romertall-oktav-xii-1820> ubbont:bibsysID ?bibsysId
            SERVICE <http://pallas.bibsys.no:9999/blazegraph/namespace/metadata/sparql> { 
              ?biblio dc:identifier ?bibsysId . }
          }
      }
  }

Binde alt sammen

Konklusjon!

• SPARQL er en standard "API"
• Bruker http
• Mulig å hente ut akkurat det du trenger
• På det formatet du foretrekker
• Ikke nødvendig å være enig om datamodell på forhånd

Besøk marcus.uib.no

Spørsmål eller kommentarer?

tarje.lavik@ub.uib.no

#tarjelavik

slides.com/tarjelavik/semweb2016-sparql

TIF File by mantisshrimpdesign from the Noun Project

Folder by Jevgeni Striganov from the Noun Project

JPG File by Chameleon Design from the Noun Project

XML File by mantisshrimpdesign from the Noun Project