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Linked(OpenData) vs Open(Linked Data): a voice from the industry
LOD 2014 – Rome 2014/02/20
Vittorio Di Tomaso – Matteo Ca...
projects
SaaS
consulti
ng
LD for Semantic Search
2
@copyright 2014 CELI / Me-Source / Cross Library
Lorem ipsum dolor sit ...
Objective
Linked/Open
Public/Private
What does
prevent LOD
publication?
2 dimensions
2 contexts
3
Linked Open Data
4
1.  use URIs
2.  use HTTP URIs
3.  use de-referentiable URIs,
using the standards
(RDF*, SPARQL)
4.  in...
Linked and/or Open Data
Linked Data
Open Data
?
5
LOD
The Public Sector: clear process
acquire
data
set open
license
open
formats
publish
6
Public sector: simple process…
LACK
OF MONEY
LACK
OF WILLINGNESS
USE OF “STANDARDS”
… hard
problems OPAQUE DATASETS
POOR R...
The Private Sector: diverse uses of LD
as user:
named entity recognition, content
enrichment, machine linking, discovery
s...
RDF KB
Crafting RDF artifacts
Exploration APISearch
The artifacts/datasets
produced are linked (they
o f t e n r e u s e s...
Why companies’ RDF is not published
HENCE à OVERFITTING:
Provocation
It would not be interesting nor usable
WAY OUTS:
hav...
Receipts
Public Sector: use “true” LOD technologies (RDF dumps or SPARQL endpoints)
Private companies: use standard data m...
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Linked(open data)vsopen(linked data) lod2014roma

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1 Linked(OpenData) vs Open(Linked Data): a voice from the industry LOD 2014 – Rome 2014/02/20 Vittorio Di Tomaso – Matteo Casu

2 LD for Semantic Search

3 Objective 2 contexts: Linked/Open - Public/Private.
What does prevent LOD publication?

4 Linked Open Data

5 Linked and/or Open Data

6 The Public Sector: clear process

7 Public sector: simple process…

8 The Private Sector: diverse uses of LD

9 Crafting RDF artifacts

10 Why companies’ RDF is not published

11 Receipts
Public Sector: use “true” LOD technologies (RDF dumps or SPARQL endpoints)
Private companies: use standard data models, internally and for their artifacts
OpenData Community: please stress the linked in LOD!

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Linked(open data)vsopen(linked data) lod2014roma

  1. 1. Linked(OpenData) vs Open(Linked Data): a voice from the industry LOD 2014 – Rome 2014/02/20 Vittorio Di Tomaso – Matteo Casu
  2. 2. projects SaaS consulti ng LD for Semantic Search 2 @copyright 2014 CELI / Me-Source / Cross Library Lorem ipsum dolor sit amet, soldatino consectetur, sed do eiusmod tempor incididunt ut labore et sed eiusmod tempor Luigi Einaudi aliqua. Roma, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat http://it.dbpedia.org/resource/Luigi_Einaudihttp://purl.org/bncf/tid/17802 http://sws.geonames.org/3169071/ livedIn
  3. 3. Objective Linked/Open Public/Private What does prevent LOD publication? 2 dimensions 2 contexts 3
  4. 4. Linked Open Data 4 1.  use URIs 2.  use HTTP URIs 3.  use de-referentiable URIs, using the standards (RDF*, SPARQL) 4.  include links to other URIs But: what does it count as standard? As open? As linked?
  5. 5. Linked and/or Open Data Linked Data Open Data ? 5 LOD
  6. 6. The Public Sector: clear process acquire data set open license open formats publish 6
  7. 7. Public sector: simple process… LACK OF MONEY LACK OF WILLINGNESS USE OF “STANDARDS” … hard problems OPAQUE DATASETS POOR RDF/SPARQL SUPPORT 7
  8. 8. The Private Sector: diverse uses of LD as user: named entity recognition, content enrichment, machine linking, discovery search… as provider for the Public Sector: publishing, data integration internal use: e.g. assets management crafting of RDF artifacts for a particular application 8
  9. 9. RDF KB Crafting RDF artifacts Exploration APISearch The artifacts/datasets produced are linked (they o f t e n r e u s e s t a n d a r d models) but not always inter-operable. Why? Linguistic Analysis Processing Index Ling Resource Data Storage Documents acquisition 9
  10. 10. Why companies’ RDF is not published HENCE à OVERFITTING: Provocation It would not be interesting nor usable WAY OUTS: having more standard models for particular micro-domains could permit their direct (re)use by the private company 10 •  It often reflects customers’ needs •  It often reflects internal data models
  11. 11. Receipts Public Sector: use “true” LOD technologies (RDF dumps or SPARQL endpoints) Private companies: use standard data models, internally and for their artifacts OpenData Community: please stress the linked in LOD! 11 The success of LOD is bound to the use of Linked Data as a technology The use of LD in the private sector will positively feedback on the diffusion of the necessary expertise and sensibility in the Public Sector too

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