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semantic-web's Introduction

Ontologies

Syntax check

RDFS

Ontology about the characters of the BBC TV series 'Sherlock' taken from Bakerstreet Wiki in Turtle syntax.

rdfs.ttl

The generated RDF graph can be found here.

SPARQL

  1. Start apache fuseki server with docker: docker-compose up --build --detach
  2. Go to localhost:3030
  3. Sign in with credentials admin:admin
  4. Import rdfs.ttl into dataset
  5. Run queries in sparql.rq

OWL

Same ontology as in RDFS but more complicated.

owl.ttl

Conclusions

Type Natural speech DL query Result
Subsumption Does ActorPerson apply? Actor and Person 7 instances
Instance Does Sherlock_Holmes belong to class Person? Person and rdfs:label value "Sherlock Holmes" 1 instance
Property instance Is John Watson a friend of Eurus Holmes? rdfs:label value "John Watson" and friend value 'Eurus Holmes'
Property extension Which siblings are enemies? sibling some Character and enemy some Character 3 instances

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semantic-web's Issues

Create four OWL conclusions.

Geben Sie 4 konkrete Schlussfolgerungen (z.B. Instanz, Konsistenz, Subsumtion, ...) an, die mittels OWL-Reasoning abgeleitet werden koennen.

Create four SPARQL queries

Geben Sie hierzu mindestens 4 SPARQL-Anfragen an, die aus der Ontologie interessante Informationen ableiten.

Create OWL ontology

Erstellen Sie eine OWL-Ontologie zu einer Domaene Ihrer Wahl, die mindestens 50 Entitaeten (Klassen, Properties oder Individuen) enthaelt. Dies muss nicht dieselbe Domaene wie fuer Teil 1 sein. Wenn es dieselbe ist, muss ihre Modellierung deutlich anspruchsvoller als fuer Teil 1 sein.

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