weaving the economic linked open data michalis vafopoulosmichalis vafopoulos and marios meimaris...
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Weaving the economic Linked
Open Data
Michalis Vafopoulos and Marios Meimarisvafopoulos.org
SMAP2012
Multimedia Technology Laboratory, School of ECE, NTUA
medialab.ntua.gr
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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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