Have you ever wondered what....

….Ghostface is SCREAMing about?

Janowicz & Hitzler; Semantics for Big Data, AAAI 2013 Fall Symposium; Nov. 2013

Have you ever wondered what....

….Ghostface is SCREAMing about?

(ANSI) Data Models

* There are many (slightly) different versions of this stack

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(ANSI) Data Models

(ANSI) Data Models

Ontologies as domain independent layer on top of conceptual models

(ANSI) Data Models

(ANSI) Data Models

For details, see: Janowicz and Hitzler (2013): Thoughts on the complex relation between linked data, semantic annotations, and ontologies.

Do We Need Ontologies?

Query to Google's Knowledge Graph in 2012

For details, see: Janowicz and Hitzler (2013): Thoughts on the complex relation between linked data, semantic annotations, and ontologies.

A Little Semantics Goes a Long Way...

Semantic Rule: stop counting years once a person dies ( ontological commitment!)→

…Try expressing this in OWL ;-)

Query to Google's Knowledge Graph in 2013

… But How much is 'A Little'?

Fluidops maps the Moon's Copernicus crater to the Chad due to Dbpedia's false use of the W3C Basic Geo specs.

* See: http://stko.geog.ucsb.edu/location_linked_data for details.

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How To Make Rule Generation Scale?