Weaving the economic Linked Open Data Michalis VafopoulosMichalis Vafopoulos and Marios Meimaris...
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Transcript of Weaving the economic Linked Open Data Michalis VafopoulosMichalis Vafopoulos and Marios Meimaris...
Weaving the economic Linked
Open Data
Michalis Vafopoulos and Marios Meimarisvafopoulos.org
SMAP2012
Multimedia Technology Laboratory, School of ECE, NTUA
medialab.ntua.gr
Economy after the Web
New form of property• Public, Private, Peer (e.g. Wikipedia)
The right to: • Use-modify-benefit-transfer
resources
• Energetic & connected consumption• Pro-sumption
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Research question
Web economy: from potential to actual
Enable new virtuous cycles in the economy through Linked Open Data
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Outline ① EU Unification: institutions-technology
② Why Linked Open Data? ③ Economic LOD
o the story so faro how to starto use caseso engineering
④ Government Budget⑤ Tenders ⑥ Spending⑦ Business Information ⑧ Next steps
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EU Unification: the institutions
Best in theory – poor in practicea (complicated) market example• monetary policy, currency,
eurozone • European Single Market • fiscal policy FORTHCOMING
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EU Unification: the technology
Linked Data or Web of data• “publish once, use many times”. • different consumers extract
different slices of the data for different purposes
• publish in context: value & “meaning”
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EU Unification: the technology
• Linked Data (LD) + Open Data =LOD
• Economic LOD as “data currency”
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Why LOD?
• Transparency & innovation
Network effects: enabling users to • bidirectional & massively processable
interconnections among data • re-using the existing infrastructure in
the government and business spheres
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Economic LOD: the story so far
• Isolated/fragmented behind technological & institutional barriers
• General statistics: Eurostat etc. • LOD2 case • LOTTED (Linked Open Tenders Electronic Daily)
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Economic LOD: how to start
A general model
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Economic LOD: use cases
• Business applications on top• Users: citizens, gov., EU, business• track the life-cycle of every financial
flow: evaluate budget allocation, tenders, spending and their efficiency
• pre-allocate resources on provisional public works
• receive & submit information in real-time
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Economic LOD: engineering
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Government Budget• heterogeneous repositories & methods (mainly
PDF)
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Tenders • Closed data in HTML• Public Contracts Ontology (PCO), e.g. – pco:Contract and pco:AwardCriterion
• Common Procurement Vocubulary• now working on linking our ontology
to:– Payments Ontology – GoodRelations – FOAF
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Spending • most dynamic & open part• increasing number of countries/cities• raw & structured data• leader: the Greek Clarity project• spending decisions ex-ante to
execution• Actually every decision
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www.publicspending.gr (*****)
• based on Greek Clarity & Tax information
• semantify, interconnect, clean, visualize, SPARQL endpoint, daily update
• PSGR ontology Links to–WESO products classif. – UK Payments Ontology– DBpedia and Geonames–…more to come
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Business Information
• Registries: mainly closed• Key standards– Classification of Products by Activity (CPA)– eXtensible Business Reporting Language
(XBRL)
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Business Information
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Next steps
• Working on our basic ontology• Real-life examples & apps• Bad news: A long way to go• Good news: we have started
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Thank you!
• More in vafopoulos.org
References• Weaving the Economic Linked Open Data• The Web Economy: Goods, Users, Models, an
d Policies
• Public Spending: Interconnecting and Visualizing Greek Public Expenditure Following Linked Open Data Directives
• A Framework for Linked Data Business Models
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appendix
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