Lasso context-elicitation-framework- demo

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Project LASSO intends to deploy, improve and extend Linked Data (LD) infrastructure in three different use cases. Central feature of all use cases is a lookup service which helps to augment already existing, formalized knowledge with facts from the Linked Open Data (LOD) cloud. These three use cases are Semantic Desktop, Enterprise Collaboration and Inspiration Services. Currently available systems in all of these application domains are sparsely using data from the Semantic Web. http://www.lassoproject.org/

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KnowSe 2.0Context Elicitation Framework Knowledge Management Institute TU Graz Contact: alfred.wertner@tugraz.at 09.09.11 www.lassoproject.org 1

Motivation 09.09.11 www.lassoproject.org 2 „Can we build an open source framework which easily allows to explore the current situation the user is in?“

Collect Data From different sources Using various formats Possible sources? Sensors, crawlers, agents… … which provide user related data For example: Software sensors capturing user machine interactions e.g. mouse clicks, keyboard input Hardware sensors capturing physical conditions e.g. heartbeat pulse, body temperature 09.09.11 www.lassoproject.org 3

Infer Knowledge Apply context elicication methods Depend on the application Take low-level data and generate higher level concepts Use knowledge For further analysis For visualization 09.09.11 www.lassoproject.org 4

ArchitecturalBuilding Blocks 09.09.11 www.lassoproject.org 5

Generic Framework Components 09.09.11 www.lassoproject.org 6

Router 09.09.11 www.lassoproject.org 7 Concurrent request handling Data is dispatched for interested triplificators only The others remove themselves from the list of candidates As soon as data is available, data is read and dispatched One or more interested triplificators possible If none is interested connection request is not processed

Generic Framework Components 09.09.11 www.lassoproject.org 8

Registry 09.09.11 www.lassoproject.org 9 Lists the orchestra of available components E.g. router, triplificators, elicitation components etc. Registration is done upon system start

Generic Framework Components 09.09.11 www.lassoproject.org 10

Knowledge Base 09.09.11 www.lassoproject.org 11 Storage format: RDF Behind the scenes: Sesame as RDF Framework API Modes of editing: Triples level Model level Model level supports working with ontologies in an object oriented fashion Cross language compiler converts OWL into Java interfaces ModelEditor provides a simple way of accessing entities in the ontology

Generic Framework Components 09.09.11 www.lassoproject.org 12

Notificator 09.09.11 www.lassoproject.org 13 Behind the scenes: Equinox implementation of the OSGI Event Administration Service Provides sending/receiving notifications Between bundles Synchronous/asynchronous fashion

ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 14

Triplificator 09.09.11 www.lassoproject.org 15 Accept or deny requests from router Multithreaded request processing Converts data into triples Transaction based storage If successful then commit Otherwise rollback Broadcasts notifications via Notificator component

ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 16

Elicitation Components 09.09.11 www.lassoproject.org 17 Get active upon notifications sent by other components Execute queries over the knowledge space Sparql 1.1 Query Language Support Generate higher level concepts

ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 18

Sink 09.09.11 www.lassoproject.org 19 End of a processing chain Transfer knowledge outside “Refinder Sink”: Send information about resource similarity Via HTTP Post Payload contains the RDF graph

ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 20

Orchestration 09.09.11 www.lassoproject.org 21 Application developer defines Set of components Initialization of components Shutdown of components Each application has its own orchestration

Wiki Visualization 09.09.11 www.lassoproject.org 22

Wiki Visualization 09.09.11 www.lassoproject.org 23

Wiki Visualization 09.09.11 www.lassoproject.org 24

Wiki Visualization 09.09.11 www.lassoproject.org 25

Wiki Visualization 09.09.11 www.lassoproject.org 26

Future work 09.09.11 www.lassoproject.org 27 Develop first release candidate Make it publicly available as Open Source Software We want to provide a ready to use set of components Including sensors Visualizations And more to come

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Lasso context-elicitation-framework- demo

1. KnowSe 2.0Context Elicitation Framework Knowledge Management Institute TU Graz Contact: alfred.wertner@tugraz.at 09.09.11 www.lassoproject.org 1

2. Motivation 09.09.11 www.lassoproject.org 2 „Can we build an open source framework which easily allows to explore the current situation the user is in?“

3. Collect Data From different sources Using various formats Possible sources? Sensors, crawlers, agents… … which provide user related data For example: Software sensors capturing user machine interactions e.g. mouse clicks, keyboard input Hardware sensors capturing physical conditions e.g. heartbeat pulse, body temperature 09.09.11 www.lassoproject.org 3

4. Infer Knowledge Apply context elicication methods Depend on the application Take low-level data and generate higher level concepts Use knowledge For further analysis For visualization 09.09.11 www.lassoproject.org 4

5. ArchitecturalBuilding Blocks 09.09.11 www.lassoproject.org 5

6. Generic Framework Components 09.09.11 www.lassoproject.org 6

7. Router 09.09.11 www.lassoproject.org 7 Concurrent request handling Data is dispatched for interested triplificators only The others remove themselves from the list of candidates As soon as data is available, data is read and dispatched One or more interested triplificators possible If none is interested connection request is not processed

8. Generic Framework Components 09.09.11 www.lassoproject.org 8

9. Registry 09.09.11 www.lassoproject.org 9 Lists the orchestra of available components E.g. router, triplificators, elicitation components etc. Registration is done upon system start

10. Generic Framework Components 09.09.11 www.lassoproject.org 10

11. Knowledge Base 09.09.11 www.lassoproject.org 11 Storage format: RDF Behind the scenes: Sesame as RDF Framework API Modes of editing: Triples level Model level Model level supports working with ontologies in an object oriented fashion Cross language compiler converts OWL into Java interfaces ModelEditor provides a simple way of accessing entities in the ontology

12. Generic Framework Components 09.09.11 www.lassoproject.org 12

13. Notificator 09.09.11 www.lassoproject.org 13 Behind the scenes: Equinox implementation of the OSGI Event Administration Service Provides sending/receiving notifications Between bundles Synchronous/asynchronous fashion

14. ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 14

15. Triplificator 09.09.11 www.lassoproject.org 15 Accept or deny requests from router Multithreaded request processing Converts data into triples Transaction based storage If successful then commit Otherwise rollback Broadcasts notifications via Notificator component

16. ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 16

17. Elicitation Components 09.09.11 www.lassoproject.org 17 Get active upon notifications sent by other components Execute queries over the knowledge space Sparql 1.1 Query Language Support Generate higher level concepts

18. ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 18

19. Sink 09.09.11 www.lassoproject.org 19 End of a processing chain Transfer knowledge outside “Refinder Sink”: Send information about resource similarity Via HTTP Post Payload contains the RDF graph

20. ApplicationDependend Framework Components 09.09.11 www.lassoproject.org 20

21. Orchestration 09.09.11 www.lassoproject.org 21 Application developer defines Set of components Initialization of components Shutdown of components Each application has its own orchestration

22. Wiki Visualization 09.09.11 www.lassoproject.org 22

23. Wiki Visualization 09.09.11 www.lassoproject.org 23

24. Wiki Visualization 09.09.11 www.lassoproject.org 24

25. Wiki Visualization 09.09.11 www.lassoproject.org 25

26. Wiki Visualization 09.09.11 www.lassoproject.org 26

27. Future work 09.09.11 www.lassoproject.org 27 Develop first release candidate Make it publicly available as Open Source Software We want to provide a ready to use set of components Including sensors Visualizations And more to come

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