W3C

- DRAFT -

WoT IG - TD TF

27 May 2015

Attendees

Present
Dan_Romascanu, Daniel_Peintner, Kan_Migamata, Joel_Vogt, Victor_Charpenay, Darko_Anicic, Sebastian_Kaebisch
Regrets
Chair
Sebastian
Scribe
dromasca

Contents


joel, Victor Charpenay also in the call

preso On JSON-LD by Souleiman Hasan

recommendation jan14

slide 3 - used for serialization

serialized linked data - can point whuch data is linked to

(sebastian presenting)

slide 4

the JSON part - two structures, widely used and supported by programming libraries

slide 5 - LD part

URIs as names for things

semantic web technologies

slide 6 - example diagram

slide 7 - JSON example

slide 8 - example LD

put more semantics - there is a way to underline the structure, use the RDF context

slide 9 - how to add to JSON to adapt it to the Web behavior (like the FOAF example)

slide 10 - JSON LD solution - create the name space with context pointed to by key value

slide 11 - context definition

slide 12 - use the context, just include in the JSON doc

slide 13 - how these come together, all constructs on the 'palyground'

playground

slide 14 - external semantics more infor

slide 15 - conclusion

sebastien - what do you think, how is it related?

sebastien - interesting, what is the difference from XML namespaces?

sebastien - proposed to postpone discussion for next call

continue to Darko - more details about SSN ontology

(Darko Presenting) - semantic sensor network preso

Ken Miyamoto also in the call

credits

semantic sensor network - was an xg

formally defining sensors, sensors networks

final report and ontology

work continues in a SSN CG

there is a WG on special data on the Web - is part of this group

14-16 institutions

(slides not numbered :-( )

in scope - sensors, accuracy, capabilites, etc. out of scope - units. location, hierarchies

different perspectives - focus on properties and observations

use cases perspective - 4 UCs reviewed - data discovery, device discovery, provenance, device operation

why semantic technologies? - ensure interoperability between various sensors and sensing systems

ssn ontology - key parts diagram

compatible w/ OGC standards

does not need to be fully reused - can use just sensors, or observations

may be used for WoT, describe Things, part of dictionaries

Things Ontology vs. Thingsonomies

ontology (SSN) / tags (Haystack)

q: no ongoing standardization of activity, research projects proposals for semantic definitions?

q: two types of contexts: based on ontologies, based on JSON-LD, are translations possible between one and the other?

a: thinks yes, small vocabulary, source of the information from schma,org, foaf

same concepts - relations, junctions?

json-ld is not used in this specific constructs yet - maybe small look on that would help, enjoy both worlds

continue discussions about jason-ld, with souleiman who travels today

also about ontology, transformations

joel present concept from everything - maybe also fits

Summary of Action Items

[End of minutes]

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