towards semantic standards

Semantic standards

paul@proxml.be

Semantics

JAGUAR

2

CONTEXT

Semantics

3

ID’s on the web

4

Data on the web

5

talking in triples (RDF)

6

http://data.kbodata.be/organisation/0314_595_348#id

afkorting "FOD Economie"

http://data.kbodata.be/organisation/0314_595_348#id

is een Overheidsorganisatie

http://data.kbodata.be/organisation/0314_595_348#id

adres "Vooruitgangsstraat 50, 1210 Sint-Joost-ten-Node"

triples RDF

7

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.mrpaul.be/ns/bedrijf#afkorting>

"FOD Economie"@nl .

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>

<http://www.mrpaul.be/ns/bedrijf#Overheidsorganisatie> .

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.mrpaul.be/ns/bedrijf#adres>

"Vooruitgangsstraat 50, 1210 Sint-Joost-ten-Node" .

RDF using standards

8

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.w3.org/ns/regorg#legalName>

"Federale Overheidsdienst Economie, KMO, Middenstand en Energie"@nl .

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>

<http://www.w3.org/ns/regorg#RegisteredOrganization> .

<http://data.kbodata.be/organisation/0314_595_348#id> <http://www.w3.org/ns/org#hasSite>

<http://data.kbodata.be/organisation/2_146_815_183#id> .

<http://data.kbodata.be/organisation/0314_595_348#id> <http://schema.org/startDate>

"1968-01-01"^^<http://www.w3.org/2001/XMLSchema#date> .

<http://data.kbodata.be/organisation/2_146_815_183#id> <http://www.w3.org/2000/01/rdf-schema#label>

"RAC Verwilghen"@nl .

Big Semantics

10

Something is a spicy-pizza if-and-only-if-it is a pizza and has-topping a spicy-topping.

Something is a vegetarian-pizza if-and-only-if-it is a pizza and is not a thing that has-topping a fish-topping and is not a thing that has-topping a meat-topping.Every four-seasons has-topping nothing-but things that are anchovies-toppings and-or are caper-toppings and-or are mozzarella-toppings and-or are mushroom-toppings and-or are olive-toppings and-or are peperoni-sausage-toppings and-or are tomato-toppings.

Practical semantics“cooperation without coordination”

David Wood

11

RDFS++

Linked semantics

12

Linked Datadata published on the web in such a

way that• it is machine-readable• its meaning is explicitly defined• it is linked to other external datasets• can in turn be linked to from external

datasetsBizer (2009)

13

Linked Data

14

QA

15