simple knowledge organisation system (skos) as the core of enterprise knowledge graphs

Andreas BlumauerCEO & Managing Partner

Semantic Web Company &PoolParty Semantic Suite

TAXONOMY BOOT CAMP LONDON 2016

SKOS as the core of Enterprise Knowledge Graphs

1

INTRODUCTION

2Semantic Web

Company

founder & CEO of

Andreas Blumauer

developer and vendor of

2004founded

5.5

current Version

active at

based on

Vienna

located

part ofTaxonomies Knowledge

Graphs

managed with

standard for part of

is a

>200serves customers

Taxonomies, Ontologies,

Knowledge GraphsHow do they fit together?

3

Benefiting from Knowledge Graphs

▸ Knowedge Discovery & Visualisation (‘follow your nose’)

▸ Analytics and complex queries (beyond search for ‘Pizza’)

▸ 360O views on business objects (systemic views)

▸4

Description (rather than a definition) of a Knowledge Graph

▸ Knowledge graphs provide holistic knowledge (multi-domain, source, granularity), including

▹ instance data (ground truth), either open, private, or closed

▹ schema data (vocabularies, ontologies)

▹ metadata (e.g. provenance, versioning, licensing)

▹ comprehensive taxonomies to categorize entities

▹ links between internal and external data

▹ mappings to data and documents stored in other systems and databases

Source: Prof. Sören Auer, Fraunhofer IAIS

5

Instance data

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

Schema data

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

http://schema.org/City

http://schema.org/TouristAttraction

http://schema.org/ArtGallery

Monday through Sunday, all day

openingHours

image

CC BY-SA 3.0

Metadata

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

http://schema.org/City

http://schema.org/TouristAttraction

http://schema.org/ArtGallery

Monday through Sunday, all day

openingHours

CC BY-SA 3.0

Taxonomies and Thesauri

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

http://schema.org/City

http://schema.org/TouristAttraction

http://schema.org/ArtGallery

Monday through Sunday, all day

prefLabel

Piazza

altLabelTown Square

broader

related

related

openingHours

CC BY-SA 3.0

Links between internal and external data

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

http://schema.org/City

http://schema.org/TouristAttraction

http://schema.org/ArtGallery

Monday through Sunday, all day

prefLabel

Piazza

altLabelTown Square

broader

related

related

same as

openingHours

The Peggy Guggenheim Collection is a modern art museum on the Grand Canal in the Dorsoduro sestiere of Venice, Italy.

same as

CC BY-SA 3.0

Mappings to data and documentsstored in other systems

prefLabel

VeniceprefLabel

St. Mark’s Square

altLabel

Piazza San Marco

Peggy Guggenheim

Museum

http://schema.org/City

http://schema.org/TouristAttraction

http://schema.org/ArtGallery

Monday through Sunday, all day

prefLabel

Piazza

altLabelTown Square

broader

related

related

openingHours

Generic Use CasesBenefiting from Knowledge Graphs

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Knowledge Discovery

Charles Crupelandt

won stages at

depicted

Jean Metzinger

painted by

Niels Bohr

inspired

exhibited atPeggy

Guggenheim Museum

Demo

Analytics and complex queries

Demo

360O views on business objects

More info

Essential FeaturesDevelop and sustain Knowledge

Graphs in Enterprises

16

From Simple to Complex

17 Taxonomy

Ontology

Ontology 1from library

Ontology 2(imported)

Ontology 3(custom-made)

Custom Schema

Integrated Machine Learning

18Content Manager

Integrator

Taxonomist/Ontologist

ThesaurusServer

Extractor

PowerTagging

uses API

is user of

is user of

is basis of

is basis of

Index

annotates

enriches

Corpus Learning/ Semantic Analysis

CMS

extends

is basis of

analyzesuses API

Data Quality

19

Determining the Knowledge Graph ‘Completeness’ for a given Domain

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21

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CONNECT

Andreas BlumauerCEO, Semantic Web Company

▸ a.blumauer@semantic-web.at▸ http://at.linkedin.com/in/andreasblumauer▸ https://twitter.com/semwebcompany ▸ https://ablvienna.wordpress.com/

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