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LOD2 CKAN WS Vienna: PoolParty für semantische Suche und Vokabular Management für CKAN, Thomas Schandl (SWC)
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LOD2 CKAN WS Vienna: PoolParty für semantische Suche und Vokabular Management für CKAN, Thomas Schandl (SWC)

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Folien vom LOD2 CKAN Workshop Vienna am 15.6. 2011 in Wien - Metadaten Management und Semantic Search in Open Data Katalogsystemen mittels PoolParty (http://www.poolparty.biz) von Thomas Schandl …

Folien vom LOD2 CKAN Workshop Vienna am 15.6. 2011 in Wien - Metadaten Management und Semantic Search in Open Data Katalogsystemen mittels PoolParty (http://www.poolparty.biz) von Thomas Schandl (Semantic Web Company - SWC).
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  • 1. PoolParty fürsemantische Suche undVokabular Management für CKAN Mag. Thomas Schandl Semantic Web Company
  • 2. Agenda• Live Demo PoolParty Semantic Search• Szenarios für semantische Suche• Die Rolle von Thesauri bei semantischer Suche• PoolParty Demo am Beispiel OpenData und CKAN 2
  • 3. OGD/CKAN Herausforderungen• Wo suchen? Verteilte nationale und internationale Datenbestände• Welche Suchbegriffe verwenden? Uneinheitliche Metadaten und Verschlagwortung, verschiedene Sprachen und Begrifflichkeiten• Verschiedene andere Katalogsysteme © Semantic Web Company – http://www.semantic-web.at/ 3
  • 4. Some thoughts on the Semantic Web “In the Semantic Web, it is not the Semantic which is new, it is the Web which is new”Dr. Chris Welty, IBMWatson Research Center 4
  • 5. Some thoughts on the Semantic Web “A little Semantics Goes a Long Way”Prof. Jim HendlerRensselaer Polytechnic Institute 5
  • 6. PoolParty Überblick• Hauptanwendungsgebiete: – SKOS Thesaurus Management – Linked Data (publishing & consuming) – Semantic Search & Semantic Indexing• Verbindung CKAN und PoolParty in LOD 2 Projekt 6
  • 7. Semantic Search Demohttp://bit.ly/semantic_search http://www.flickr.com/photos/techburst/2796421248/ Semantic search has many faces 7
  • 8. Weitere Semantic Search Szenarios http://www.flickr.com/photos/techburst/2796421248/ Semantic search has many faces 8
  • 9. Situations in which semantic search can help I want to see facts from different sources describing I can´t this entity. remember how I want to know to spell the more about this search term entity in a certain context. I want to search in different languages I want to gain simultaneously background knowledge to acertain document I can´t remember I want the exactly what I software to I forgot some of was looking for understand what I the names for mean by „Jaguar“ the entity I´m looking for 9
  • 10. Find information faster – Auto- Complete I can´t remember how to spell the search termTo provide powerful auto-complete also for enterprise searchscenarios you need to establish an enterprise vocabulary. 10
  • 11. Reveal hidden information – Status quo I forgot some of the names for the entity I´mSNCR Search looking for SNCR OR „Selective non- Search 11
  • 12. Reveal hidden information with query expansionSNCR OR "selective non catalytic reduction" Search SNCR preferred Label alternative Label selective non catalytic reduction 12
  • 13. Multi-lingual search based on a thesaurus I want to search in different languages simultaneouslyclean energy OR energía limpia Search preferred Label @en clean energy energía limpia preferredLabel @es 13
  • 14. Reveal hidden information and relations I want to gain background knowledge to acertain document http://poolparty.punkt.at/demozone Find documents or images related 14 to any other text.
  • 15. Find more specific information with faceted search Zero-result queries won´t happen anymorefacets supportstructured queriesfacets helpto drill downsearch results,adapt dynamically 15
  • 16. Complex queries with facetedsearch over linked data „Show me all airlines whose parent company is Lufthansa“ http://dbpedia.neofonie.de/16
  • 17. Find linked information – Status quo I want to see facts from different sources describing this entity.My Energy-Dossier about The user has to put together manually energy-related information about a country. 17
  • 18. 360O views: Find linked information Energy-related information about countries are „mashed“ automatically by using „linked data“ http://www.reegle.info/countries18
  • 19. 19 The role of thesauri in semantic search http://www.flickr.com/photos/techburst/2796421248/
  • 20. SKOS – Open Standard for Thesauri• SKOS = Simple Knowledge Organisation System(s)• Goal … – Simple, flexible, extensible, machine- understandable representation for… • Thesauri • Classification Schemes • Taxonomies • Subject Headings • Other types of ‘controlled vocabulary’… © Semantic Web Company – http://www.semantic-web.at/ 20
  • 21. The role of thesauri in semanticsearch 21
  • 22. The role of thesauri in semanticsearch (contd.) Thesaurus as the central point to control: • labels & query expansion • facets • refine search mechanisms • metadata integration 22
  • 23. Content annotation: Traditional approachApple is in theprocess of launching merchandise Applean application toallow iPhone, iPadand iPod Touch users applicationto purchase Apple iPod touchmerchandise straightfrom their devices. iPad iPhone http://www.punkt.at/ 23
  • 24. Semantic Web approach: Concepts, NOT simply textApple is in the Appleprocess of launching http://my.com/Applean application toallow iPhone, iPad Apple Inc.and iPod Touch usersto purchase Applemerchandise straight http://my.com/smartphonefrom their devices. http://my.com/iPhone iPhone iPhone 3G http://my.com/iPhone3G iPhone 3GS http://www.punkt.at/ 24
  • 25. PoolParty Tag Suggestions• Support of different formats (html, doc, pdf, ppt, …)• Thesaurus based extraction• Integrable with CMS, CRM etc. http://www.punkt.at/ 25
  • 26. Zusammenspiel CKAN und PoolParty Service für Tagvorschläge aus Thesaurus CKAN Norway CKAN UK CKAN NetherlandsCKAN Austria Andere Datenquellen © Semantic Web Company – http://www.semantic-web.at/ 26
  • 27. Zusammenspiel CKAN und PoolParty Indizierung der Metadaten CKAN Norway CKAN UK CKAN NetherlandsCKAN Austria Andere Datenquellen © Semantic Web Company – http://www.semantic-web.at/ 27
  • 28. PoolParty System Architecture Search Application Search ServicesCKAN UK Semantic Collector Index Indexer CKAN RDFAustria Cartridge 28
  • 29. Verbindung CKAN und PoolParty in LOD 2 Projekt• Wo suchen? Zentrale Suche über verteilte Systeme• Welche Suchbegriffe? Harmonisierte Metadaten durch mehrsprachige, semantische Tags• Weitere Features – Kategorisierung – Autocomplete – Recommender für ähnliche Datenquellen © Semantic Web Company – http://www.semantic-web.at/ 29
  • 30. PoolParty Demo• HP: http://poolparty.punkt.at/PoolParty/• Doku: https://grips.punkt.at/display/POOLDOKU/Latest Update:Version 2.9.2, May 2011 http://www.punkt.at/ 30
  • 31. Danke für Ihre Aufmerksamkeit! Mag. Thomas Schandl t.schandl@semantic-web.at Semantic Web Company GmbH Lerchenfelder Gürtel 43 A-1160 Wien Tel. +43 1 402 12 35 office@semantic-web.at© Semantic Web Company – http://www.semantic-web.at/ 31

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