Linked Data 1 : Hva og hvorfor KoG31 Uke 6, 2011.

Presentasjon om: "Linked Data 1 : Hva og hvorfor KoG31 Uke 6, 2011."— Utskrift av presentasjonen:

1 Linked Data 1 : Hva og hvorfor David.massey@jbi.hio.no KoG31 Uke 6, 2011

2 Metadata is King!

3 Objekt Egenskap Verdi

4 Hvorfor?

5 Identifiserer

6 Gjenfinner

7 Bruker

8 Vi velger egenskaper etter objektet vi skal beskriver og hva beskrivelsen skal brukes til

9 Metadata semantikk Hva betyr Tittel?

10 Metadata struktur Må Tittel være med? Kan vi gjenta Tittel? Hvordan skal verdien for Tittel utformes?

11 Metadata syntaks Hvordan skal Tittel nedtegnes?

12 Syntaks

13

14

15 Standards are also Kings!

16 Kommunikasjon

17 Datamaskiner kommuniserer vha Internett – slutten 1960-tallet

18 Men hva skulle Internett brukes til?

19 Cern, Sveits – 1990 – Tim Berners-Lee

20 Utveksling av dokumenter

21

22 Dokumenter + lenker

23 U2

24

25

26

27 HTML Beskriver struktur i dokumenter

28 Hovedoverskrift Avsnitt Usortert liste Listepunkt Tabell Rad i en tabell Datacelle i en tabell …

29 http://en.wikipedia.org/wiki/Norway

30

31 … Population 2011 estimate 4,936,000 (116th) …

32 Linked data Beskriver objekter med egenskaper og verdier

33

34 4,936,000

35 DokumentData tableDescription trabout thpopulationEstimate td

36 Dokumenter er for menneske, data er for datamaskiner

37 Hvorfor? ”We need to help machines to understand the web so machines can help us understand things.” Raimond og Smethurst, BBC, 2009 (http://www.bbc.co.uk/blogs/radiolabs/s5/linked-data/s5.html)

38 Semantisk Web ”I have a dream for the Web [in which computers] become capable of analyzing all the data on the Web – the content, links, and transactions between people and computers. A ‘Semantic Web’, which should make this possible, has yet to emerge, but when it does, the day-to-day mechanisms of trade, bureaucracy and our daily lives will be handled by machines talking to machines. The ‘intelligent agents’ people have touted for ages will finally materialize." Tim Berners-Lee, Scientific American, 2001 (http://www.scientificamerican.com/article.cfm?id=the-semantic-web)

39 Science Fiction?

40 Men, hva har dette med bibliotek å gjøre?

41 Siloer

42 "Nobody else frets over whether Google 'wants' their data. They just put it on the real web, not on some bullshit mid-90s dark web." Tim Spalding, Skaperen av LibraryThing, 2009 (http://serials.infomotions.com/ngc4lib/archive/2009/200910/1678.html)

43 "The coolest thing to do with your data will be thought of by someone else." Rufus Pollock (http://blog.paulwalk.net/2007/07/23/%E2%80%9Cthe-coolest-thing-to-do- with-your-data-will-be-thought-of-by-someone-else%E2%80%9D/)

44 http://bokelskere.no/

45 Neste gang: Linked data 2 : Hvordan

46 Flickr fotoer: Lego 713Avenue (http://www.flickr.com/photos/seven13avenue/) King Gruhn (http://www.flickr.com/photos/gruhn/) Record Olivander (http://www.flickr.com/photos/olivander/) Katalog mightymightymatze (http://www.flickr.com/photos/mightymightymatze/) Vinyl Steve Snodgrass http://www.flickr.com/photos/stevensnodgrass/ Spotify Dekuwa http://www.flickr.com/photos/dekuwa/ Ikea Dougbelshaw http://www.flickr.com/photos/dougbelshaw/ Catalog card - Circulating - http://www.flickr.com/photos/circulating/ MARC - Xmacex - http://www.flickr.com/photos/xmacex/ XML - Will Pate - http://www.flickr.com/photos/willpate/ Plugs - Keith Williamson - http://www.flickr.com/photos/elwillo/ Bench - L.A. Nolan - http://www.flickr.com/photos/lanolan/ Cables - Neil T. - http://www.flickr.com/photos/neilt/ Computer screens - ecastro - http://www.flickr.com/photos/ecastro/ TBL - campuspartybrasil - http://www.flickr.com/photos/campuspartybrasil/ Post - F Photography - http://www.flickr.com/photos/21873449@N07/ Girls - Jason Hudson - http://www.flickr.com/photos/jasonhudson/ Robots - Don Solo - http://www.flickr.com/photos/donsolo/ Castle - Wolfgang Staudt - http://www.flickr.com/photos/wolfgangstaudt/ Lego City - Eirik Newth - http://www.flickr.com/photos/eiriknewth/