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Ontologies in Neo4j: Semantics and Knowledge Graphs
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Ontologies in Neo4j: Semantics and Knowledge Graphs
1.
Ontologies in Neo4j Semantics
and Knowledge Graphs Jesús Barrasa PhD - Neo4j @BarrasaDV
2.
Context: Ontologies are
AI (AI ≠ ML!)
3.
Knowledge Rerpresentation +
Reasoning
4.
Ontologies
5.
Example ontology: FIBO
6.
Example ontology: schema.org @prefix
schema: <http://schema.org/> . @prefix ns0: <http://schema.googleapis.com/> . INSERT DATA { <http://g.co/kg/m/0567wt> schema:name "Sketches of Spain" ; a schema:MusicAlbum ; schema:description "Album by Miles Davis" ; schema:genre "Jazz" ; ns0:detailedDescription [ schema:license "Creative_Commons_Attribution-ShareAlike_3.0_License" ; schema:url "http://en.wikipedia.org/wiki/Sketches_of_Spain" ; schema:articleBody "...between Nov 1959 and Mar 1960 at the Columbia 30th St Studio in NY City" ] ; schema:award <http://g.co/kg/m/018xpp> ; schema:byArtist <http://g.co/kg/m/053yx> ; schema:producer <http://g.co/kg/m/01v1m8b>, <http://g.co/kg/m/02wvrn5> . <http://g.co/kg/m/018xpp> schema:name "Grammy Hall of Fame" . <http://g.co/kg/m/053yx> schema:name "Miles Davis" . <http://g.co/kg/m/01v1m8b> schema:name "Teo Macero" . <http://g.co/kg/m/02wvrn5> schema:name "Irving Townsend" . }
7.
What are ontologies
used for? • Interoperability • Definitions of shared vocabularies • Inferencing • Actionable knowledge fragments
8.
Interoperability: Exposing your Neo4j
data as RDF using standard vocabularies
9.
10.
Inferencing: Deriving new knowledge
from existing one
11.
12.
Demo Dataset: Lending Club
Loan data (https://www.kaggle.com/wendykan/lending-club-loan-data) Ontology: Financial Extension of schema.org (https://schema.org/docs/financial.html) Code: https://github.com/jbarrasa/datasets/tree/master/ontos
13.
Questions?
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