This presentation highlights some of the ways in which Argus Labs uses semantic technologies to power Jini, its platform to enable context-aware services in third-party applications. Ontologies, JSON-LD and Linked Data principles all work together to create a flexible system with a powerful RESTful API for situational understanding. Presented in the Industry Track at the International Semantic Web Conference 2013, Sydney, Australia.

1. How Semantic
Technologies
Supercharge a Platform
for Context-Aware
Applications
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

2. Data Architect
Argus Labs
Belgian Startup
Jini
Contextualization Platform
Who am I?
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

3. What is context?
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

4. Context Pyramid
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

5. Data that is semantic
means exactly the same thing
to any system or person
that uses it
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

6. Sydney
Reduce Ambiguity
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

7. Enrichment
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

8. Self-describing data model
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

9. Contextualization
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

10. TopBraid Composer
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

11. Event Ontology - Structure
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

12. event:product
a
owl:ObjectProperty ;
rdfs:label "product" ;
rdfs:domain event:Event .
ctx:observation
a
owl:ObjectProperty ;
rdfs:label "observation"^^xsd:string ;
rdfs:domain ctx:Event ;
rdfs:range ctx:Observation ;
owl:equivalentProperty event:product .
Event Ontology - Domain
Adaptation
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

13. Location
Subject
place
DataEntry
subject
Event
time
Temporal
Entity
RawData
producer
Producer
time
Structured
Data
observation
Observatio
n
data
Data
Aggregate
DataAtom
producer
observation
Enrichment
MusicTrack
Atom
MusicSession
PhotoAtom
...
WeatherAtom
Context Ontology - Excerpt
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

14. Schema.org
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

15. • URIs
• HTTP for dereferencing
• Standard representations
• Link out
Linked Data
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

16. Data Representation
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

17. Results
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

18. • JSON-LD:
– Developer-friendly
– Facilitates integration
• Ontology as living documentation
• REST
Linked Data
Conclusions
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

19. • Tool support
– Symbol clashes: ‘@’
• Data model versioning
– Named Graphs
– ctx:VersionInfo
– owl:Deprecated
Challenges
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

20. David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

21. David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co

22. Jini
• www.jini.co
• www.facebook.com/GetJini
• @GetJini
Me
• david@jini.co
• @dafmetal
More...?
David Damen
How Semantic Technologies Supercharge a Platform for Context-Aware Applications
www.jini.co