전문가토크릴레이 2탄 Open data and linked data (김학래 박사)


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전문가 토크릴레이 2탄 Open data and linked data : 웹사이언스 워크그룹 김학래 박사

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전문가토크릴레이 2탄 Open data and linked data (김학래 박사)

  1. 1. Making Emergent CreativityOpen
  2. 2.  Data
  3. 3.  and
  4. 4.  Linked
  5. 5.  Data
  6. 6.   김학래,
  7. 7.  코리아데이터허브,
  8. 8.  2012
  9. 9.  
  10. 10. Let’s  Think  “This  led  to  changes  in  the  cons6tu6on  and  the  establishment    of  a  more  open  government”  –  WikiLeaks   WikiLeaks   Data.gov  
  11. 11. Quick SummaryOpen Data vs Linked Data Open Data starts with making available the data that you already have, in whatever format. •  Equal access for all Open Data •  Licensing, legal issues •  Transparency •  Changing the way government works •  URIs Linked Data •  HTTPs •  RDF vocabularies •  Standards 3
  12. 12. TodayThis Presentation ..... Open Data and The Semantic Web Introduction What We Will Do Open Government Linked Data Data 4
  13. 13. Let’s StartWeb in Evolution“a steady progression from a document-centric Web to one that is data-centric, including the mediation of semantics” (Source: Mike, 2007) 5
  14. 14. QuestionWhat is the Semantic Web for? Standards Inference Search Intelligence 6
  15. 15. Case StudiesGoogle’s Semantic SearchPeople should be able to ask questions and we should understand their meaning, or they should be able totalk about things at a conceptual level. ... A lot of people will turn to things like the semantic Web as a possibleanswer to that.“ - Google Vice President of Search Products User Experience Marissa Mayer an initiative launched on 2 June 2011 by Bing, Google and Yahoo!to create and support a common set of schemas forstructureddata markup on web pages.Freebase is an open, Creative Commons licensed repositoryof structured data of almost 22 million entities. An entity is asingle person, place, or thing connected by a graph.The Knowledge Graph is a collection of information sources thathelp discern a user’s specified intent with each individual query.The graph is actually an encyclopedia with structured http://schema.org/docs/full.html information obtained from the web. (currently, 200 millionentities) 7
  16. 16. Case StudiesApple’s SiriAsk Siri how Apple recorded the best quarter in history for a tech company, and her answer should be: Me. Siri (Speech Interpretation and Recognition Interface) is Knowledge Navigator (1987)an intelligent personal assistant and knowledge a concept described by former Apple Computer CEO Johnnavigator which works as an application for Apples iOS. Sculley in his 1987 book, Odyssey. A Brief History- In December 2007 Siri, Inc. was formed by Dag Kittlaus(CEO), Adam Cheyer (VP Engineering), and Tom Gruber(CTO/VP Design).- Siri Inc. went after funding and by November 2009 it hadsecured $15.5 million investment, resulted in the creation ofthe first Siri application, which debuted on the iPhone 3GS inFebruary 2010.- Siri acquired by Apple; iPhone becomes the Virtual PersonalAssistant (Source: http://www.youtube.com/watch?v=QRH8eimU_20) 8
  17. 17. Case StudiesActive OntologyA processing formalism where distinct processing elements are arranged according to ontology notions;an execution environment. Basic concepts * Ontology : A data structure - Formal representation for domain knowledge - Classes, attributes, relations * Active Ontology : A processing environment - Processing elements arranged according to ontology notions - Communication channels P movie P genre P actor P rating rule set rule rule rule condition condition condition action action action (Baur et al., 2007) 9
  18. 18. TodayThis Presentation ..... Open Data and The Semantic Web Introduction What We Will Do Open Government Linked Data Data 10
  19. 19. Let’s StartBig Data“data that becomes large enough that it cannot be processed using conventional methods” “Big Data is like Sex in High School–Lots of people are talking about it, but few are having it.” -Eric Hansen, SiteSpect founder and CEO 11
  20. 20. Best PracticesLondon 2012: Open Data Olympics 12
  21. 21. OpenStreetMap - Project Haiti
  22. 22. DefinitionWhat is Open (Government) Data? “Open” material (data) is open if it can be freely used, reused and redistributed by anyone “Government data” data and information produced or commissioned by government or government controlled entities. Source: Open Knowledge Foundation, 2010 14
  23. 23. •  Transparency•  Participation•  Collaboration“My administration is committed to creating an unprecedentedlevel of openness in Government.” – Barack Obama “Memorandum for the Heads of Executive Departments and Agencies – Transparency and Open Government” Jan 2009
  24. 24. Data.gov  Launched  on  May  21,  2009,  Data.gov  allows  ci;zens  to  par;cipate  by  leveraging  federal  data  sets  to  build  applica;ons,  conduct  analysis,  and  perform  research.  •  The  first  phase  of   Data.gov  features   downloadable  federal   data  sets  organized  by   category  and  federal   organiza6on.  •  Data  sets  are  available   for  download  in  XML,   CSV,  and  shape  file   formats.   16  
  25. 25. Data.gov.uk  Prime  Minister,  David  Cameron,  writes  to  all  government  departments,  31  May  2010:  instruc;ng  them  to  free  up  more  datasets  as  part  of  Transparency  Agenda  Establishment  of  the  Public  Sector  Transparency  Board  chaired  by  Francis  Maude,  Minister  for  the  Cabinet  Office    The  Board  will  be  responsible  for  seRng  open  data  standards  across  the  public  sector,  publishing  further  datasets  on  the  basis  of  public  demand   17  
  26. 26. 18  hTp://www.prac6calpar6cipa6on.co.uk/odi/wp-­‐content/uploads/2010/06/Open-­‐Data-­‐Impacts-­‐Timeline-­‐Dra[-­‐0.1.png  
  27. 27. Case StudiesApplications Where Does My MoneyPostcode Newspaper World Events Visualiser EU Public Data Go 19
  28. 28. Public Sector DatasetThe State of Open Government Data Source: http://tinyurl.com/44rub56 20
  29. 29. Open Data StrategiesOpen data instruments“The application of the four types of instruments by the five countries is depicted – the largerthe circle the more instruments are applied” – Huijboom Van den Broek, 2011. Education and training Voluntary approaches US AU ES UK DK DK UK ES AU US ES DK US ES DK AU AU UK UK US Economic instruments Legislation and control 21
  30. 30. Critical factors Drivers and barries of open data policy implementation 1 Strategies and experience in front runner countries Closed government culture 2 Political leadership Privacy legislation 3 Regional initiatives Limited quality of data 4 Citizen initiatives Limited user-friendliness/information overload 5 Market initiatives Lack of standardization of open data policy 6 Emerging technologies Security threats 7 European legislation Existing charging models 8 Thought leaders Uncertain economic impact 9 Possibility of monitoring government Digital divide 10 Budgets cuts Network overloadSource:  Huijboom  and  Van  den  Broek,  2011   22
  31. 31. Open Data PortalsCKAN – Open Source Data PortalMakes it easy to publish, share, and find dataset. Integrated data storage, processing,viewing and visualization 23
  32. 32. TodayThis Presentation ..... Open Data and The Semantic Web Introduction What We Will Do Open Government Linked Data Data 24
  33. 33. Let’s StartThe Web as a Global Data Platform .. a system of interlinked hypertext documents accessed via the Internet 25
  34. 34. World Wide WebHTTP URI HTML 26
  35. 35. All data including documents, services, people ... DATA DATA linksThe Semantic Web is not about links between web pages. 27
  36. 36. OverviewLinked Data The Semantic Web“The Semantic Web isnt just about putting data on the web. It is about making links, so that a person ormachine can explore the web of data. With linked data, when you have some of it, you can find other,related, data” - TBL. 5 Stars Open linked data ★ Make your stuff available on the Web ★★ Make it avaiable as structured data ★★★ Use open, standard formats (instead of excel) ★★★★ Use a open data format – URLs, ★★★★★ descriptions Link your data to other people’s data 28
  37. 37. OverviewGrowth of Interlinks… Linked Data provides the means to reach the goal of the Semantic Web – “theemergence of a Web of Data” 2007-05-01 2007-10-08 2007-11-10 2008-02-28 2008-03-31 2008-09-18 2009-03-05 2009-03-27 2009-07-14 2010-09-22 29
  38. 38. Structured Wikipedia Multimedia Content DBpedia BBC Commercial Product Government Data Best Buy UK Gov October, 2011 30  295 interlinked datasets, approximately 31 billions triples
  39. 39. WhyLinked Data and Open Government Data 31
  40. 40. Case StudiesApplications DBPedia BBC New York Times thedatahub 32
  41. 41. TodayThis Presentation ..... Open Data and The Semantic Web Introduction What We Will Do Open Government Linked Data Data 33
  42. 42. Conceptual Architecture Roadmap of linked open government data “the combination of machine power and human power and deliver higher-quality data to a wide range of data consumers via visualization, mashups, and more.” 34(Ding et al., 2012)
  43. 43. How to Start“We won’t get there tomorrow, but maybe the day after” –Rufus Pollock Low-hanging fruit, Less conversational data and quick wins. Fireout Rebuild Expand, with more….. Data Services Efficiency Costs saving Transparency Participation Inclusion 35  
  44. 44. References- Charles Baur, Adam Cheyer, Didier Guzzoni, Active, a platform for building intelligent software- Noor Huijboom and Tijs Van den Broek, Open Data: an international comparison of strategies, European journal of ePractices, March/April 2011- Li Ding, Vassilios Peristeras, and Michael Hausenblas, Linked Open Government Data, IEEE Intelligent Systems, May/June 2012-  Page 1: http://www.w3.org/DesignIssues/diagrams/websci/Marius%20Watz%20-%20Web%20Science%20artwork.png-  Page 4: http://www.go-gulf.com/60seconds.jpg-  Page 9: http://cloud.frontpagemag.com/wp-content/uploads/2012/03/obama11.jpg-  Page 27: http://www.patentlyapple.com/.a/6a0120a5580826970c0168e5ccdd81970c-800wi-  Page 29: http://programminggeeks.com/wp-content/uploads/2010/05/Programming-Geeks-Web-Science.jpg-  Page 29: http://3.bp.blogspot.com/-C0Kyck90Djo/T4KZTg3k1XI/AAAAAAAAAsE/RUp165S0FCQ/s1600/Commitment.jpegPage 2 Case Studies-  http://www.guardian.co.uk/commentisfree/2012/aug/03/london-2012-olympics-open-data-  http://www.bbc.co.uk/news/uk-19050139-  http://london2012.nytimes.com/results-  http://www.guardian.co.uk/sport/interactive/2012/jul/23/could-you-be-a-medallist-  http://www.guardian.co.uk/sport/datablog/2012/aug/13/olympics-2012-data-journalism-  http://www.guardian.co.uk/sport/datablog/interactive/2012/jul/26/london-2012-price-olympic-games-visualised 36
  45. 45. For more informationcontact Haklae Kim viahaklae.kim@gmail.comTwitter: haklaekimOr see more activitiesat:http://blogweb.co.krhttp://thedatahub.krhttp://getthedata.kr