Your SlideShare is downloading. ×
0
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Web Science 01.12.2011 - Linked Data
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Web Science 01.12.2011 - Linked Data

864

Published on

Published in: Technology, Education
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
864
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
4
Comments
0
Likes
2
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • otrais no 3 semināriem: - īss LD atkārtojums - skatāmiescitupraksi - domājam par jautājumiem / LD pielietojumiem LNB
  • piezīme: vienlaikusizmantojam terminus “ontoloģija” un “vārdnīca”
  • http://richard.cyganiak.de/2007/10/lod/
  • Demo: - Tim Berners-Lee lapa -> DBLP raksti -> RDF books mashupdati - DBLP R2D endpoint -> http://dblp.l3s.de/d2r/data/authors/Uldis_Bojars -> ask SPARQL queriesAtkarība no Firefox versijām
  • http://www.w3.org/2005/Incubator/lld/wiki/Use_Case_NDNP
  • Demo: - Tim Berners-Lee lapa -> DBLP raksti -> RDF books mashupdati - DBLP R2D endpoint -> http://dblp.l3s.de/d2r/data/authors/Uldis_Bojars -> ask SPARQL queriesAtkarība no Firefox versijām
  • Transcript

    • 1. Linked Data Web Science seminārs2011. gada 1. decembris
    • 2. Web of Data ( Datu tīmeklis )• datoram saprotami dati – ne tikai tīmekļa lapas• globāli un publiski pieejami – to nodrošina tīmeklis• saistīti savā starpā (linked)
    • 3. Linked Data grāmatahttp://linkeddatabook.com/http://linkeddata.org
    • 4. Linked Data Principles1. Use URIs as names for things2. Use HTTP URIs so that people can look up those names.3. When someone looks up a URI, provide useful information, using the standards - RDF, SPARQL4. Include links to other URIs so that they can discover more things.
    • 5. Linking Open Data cloud diagram (Sept 2010),by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/
    • 6. RDF datu apskate• Firefox Extensions: – Semantic Radar • https://addons.mozilla.org/en- US/firefox/addon/semantic-radar/ – Tabulator Extension (Tim Berners-Lee et al.) • http://www.w3.org/2005/ajar/tab• Example: Tim Berners-Lee – http://www.w3.org/People/Berners-Lee/
    • 7. RDF vārdnīcu piemēri• Dublin Core Metadata Terms – http://dublincore.org/documents/dcmi-terms/ – Objektu metadatu informācija• Friend of a Friend (FOAF) Vocabulary – http://xmlns.com/foaf/spec/ – Informācija par cilvēkiem un to sociālajiem tīkliem• Semantically-Interlinked Online Communities (SIOC) – http://rdfs.org/sioc/spec/ – Informācija par cilvēku radīto saturu (sociālajā tīmeklī) skat. http://linkeddatabook.com/editions/1.0/#htoc538
    • 8. Datu avotu piemēri• http://linkeddata.org/data-sets• DBPedia – http://dbpedia.org – http://dbpedia.org/resource/Deus_Ex:_Invisible_War• GeoNames – http://sws.geonames.org/456172/about.rdf• WordNet: – http://www.w3.org/2006/03/wn/wn20/• VIAF: – http://viaf.org/viaf/77113948/#Rainis,_Jānis,_1865-1929
    • 9. RDF datu izmantošana• Liels rīku daudzums: – http://www.w3.org/2001/sw/wiki/Tools – http://linkeddata.org/tools• RDF Parsing• RDF Data stores• SPARQL Query language
    • 10. DBPedia izmantošana• http://wiki.dbpedia.org/OnlineAccess• Linked Data access• SPARQL Endpoints• ...
    • 11. Rīki dažādām valodām• PHP – ARC2 - https://github.com/semsol/arc2/• Python – Redland – http://librdf.org/ – RdfLib - http://www.rdflib.net/http://www.w3.org/2001/sw/wiki/Tools
    • 12. Piemērsinclude_once("./semsol-arc2/ARC2.php");$uri = http://dbpedia.org/resource/Deus_Ex:_Invisible_War;$parser = ARC2::getRDFParser();$parser->parse($uri);$triples = $parser->getTriples();foreach ($triples as $triple) { print_r($triple);}
    • 13. Jeni Tennison – “Data All the Way Down” prezentācijahttp://www.slideshare.net/JeniT/data-all-the-way-down/9
    • 14. Datu publicēšana• Kādus datus rada jūsu aplikācija?• Kā šos datus padarīt pieejamus citiem?• URI/URL, lai šiem datiem var piekļūt• datu formāts, kuru ir ērti “saprast” – text, HTML, … – structured / linked data • CSV, XML, … • RDF/XML, RDFa, …
    • 15. Mājas darbs• Linked Data izpēte – izvēlēties projekta vajadzībām atbilstošu Linked Data datu kopu – demonstrēt šīs datu kopas izmantošanu • apstrādāt šos datus • bagātināt projekta informāciju ar šiem datiem• Projekta datu publicēšana – Izdomāt kādi dati ir projekta lapā, kurus ir vērts padarīt pieejamus citiem – [ izvēlēties URI/URL, kurā publicēt šos datus ] – Padarīt datus pieejamus (RDFa, RDF/XML, …)
    • 16. Semantisko tehnoloģiju apskats• W3C prezentācija• Short introduction to the Semantic Web – Ivan Herman, 2010-06-04• http://www.w3.org/People/Ivan/CorePresent ations/IntroThroughExample/

    ×