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Semantic search

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Semantic search based on thesaurus management. The use of thesauri improves search engines. Scenarios will be shown in this presentation.

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Semantic search

  1. 1. Semantic Search Andreas Blumauer powered by
  2. 2. Agenda <ul><li>Semantic search scenarios </li></ul><ul><li>The role of thesauri in semantic search </li></ul><ul><li>PoolParty Semantic Search </li></ul><ul><ul><li>Live Demo – http://bit.ly/semantic_search </li></ul></ul>
  3. 3. Semantic search scenarios Semantic search has many faces http://www.flickr.com/photos/techburst/2796421248/
  4. 4. Situations in which semantic search can help I can´t remember how to spell the search term I can´t remember exactly what I was looking for I want to gain background knowledge to a certain document I want to know more about this entity in a certain context. I want to see facts from different sources describing this entity. I want to search in different languages simultaneously I forgot some of the names for the entity I´m looking for I want the software to understand what I mean by „Jaguar“
  5. 5. Types of Search <ul><ul><li>(1) Pinpoint-Search (factual knowledge) i.e. „Eyjafjallajökull“ </li></ul></ul><ul><ul><li>(2) Collecting and Research i.e. „volcanoes in Iceland“ </li></ul></ul><ul><ul><li>(3) Associative Search / Discovery of interrelations i.e. Volcanic eruptions and climate change </li></ul></ul><ul><ul><li>(4) Questions & Answers i.e. „Which volcanoes in Iceland erupted in 2010?“ </li></ul></ul><ul><ul><li>(5) Serendipity Discovery of unexpected, but relevant contexts and coherences </li></ul></ul>Learning /Navigating Search
  6. 6. Four demands for a smarter search <ul><li>Find information faster  Provide search assistants </li></ul><ul><li>Reveal hidden information  Enrich the search index with background knowledge </li></ul><ul><li>Find more specific information Query the semantic web </li></ul><ul><li>Find linked information Integrate data sources </li></ul>
  7. 7. Find information faster – Auto-Complete I can´t remember how to spell the search term To provide powerful auto-complete also for enterprise search scenarios you need to establish an enterprise vocabulary.
  8. 8. Find information faster – Status quo hydropower plants Search I can´t remember exactly what I was looking for Small hydro Search
  9. 9. Find information faster with related search terms hydropower plants Search http://www.reegle.info/clean-energy-search
  10. 10. Reveal hidden information – Status quo SNCR Search SNCR OR „Selective non- Search I forgot some of the names for the entity I´m looking for
  11. 11. Reveal hidden information with query expansion SNCR Search OR &quot;selective non catalytic reduction&quot; SNCR selective non catalytic reduction alternative Label preferred Label
  12. 12. Multi-lingual search based on a thesaurus clean energy Search OR energía limpia clean energy energía limpia preferredLabel @es preferred Label @en I want to search in different languages simultaneously
  13. 13. Reveal hidden information and relations Find documents or images related to any other text. http://poolparty.punkt.at/demozone I want to gain background knowledge to a certain document
  14. 14. Find more specific information – Status quo Goldman Sachs Search <ul><li>3 different contexts for </li></ul><ul><li>„ Goldman Sachs“: </li></ul><ul><li>Bond issuer </li></ul><ul><li>Analyst </li></ul><ul><li>Stock </li></ul>I want to know more about this entity in a certain context.
  15. 15. Find more specific information with faceted search facets support structured queries facets help to drill down search results, adapt dynamically Zero-result queries won´t happen anymore
  16. 16. Complex queries with faceted search over linked data „ Show me all airlines whose parent company is Lufthansa“ http://dbpedia.neofonie.de/
  17. 17. Find linked information – Status quo My Energy-Dossier about I want to see facts from different sources describing this entity. The user has to put together manually energy-related information about a country.
  18. 18. 360 O views: Find linked information Energy-related information about countries are „mashed“ automatically by using „linked data“ http://www.reegle.info/countries
  19. 19. Add personal context to the search I want the software to understand what I mean by „Jaguar“ Jaguar Search
  20. 20. The role of thesauri in semantic search How vertical search can benefit from knowledge models http://www.flickr.com/photos/techburst/2796421248/
  21. 21. The role of thesauri in semantic search
  22. 22. The role of thesauri in semantic search (contd.) <ul><li>Thesaurus as the central point </li></ul><ul><li>to control: </li></ul><ul><li>labels & query expansion </li></ul><ul><li>facets </li></ul><ul><li>refine search mechanisms </li></ul><ul><li>metadata integration </li></ul>
  23. 23. Data integration and schema mapping based on thesauri <person> Thomas Miller </person> Source 1 <employee> Tom Miller </employee> Source 2
  24. 24. PoolParty Semantic Search (PPSS) Make semantic search come true! http://www.flickr.com/photos/techburst/2796421248/
  25. 25. PoolParty System Architecture Search Services Search Application Collector <xml> Semantic Indexer Document Index Cartridge
  26. 26. Indexing and Mapping with PoolParty <ul><li>Metadata Standards </li></ul><ul><ul><li>Rich metadata in a standardized, extensible format (SKOS / RDF) </li></ul></ul><ul><ul><li>Document metadata is mapped to concepts in the thesaurus </li></ul></ul><ul><li>Cost efficient metadata management </li></ul><ul><ul><li>Thesaurus is managed with PoolParty´s easy-to-use Thesaurus Manager </li></ul></ul><ul><ul><li>One central metadata repository </li></ul></ul><ul><li>Improved end-user experience </li></ul><ul><ul><li>Semantic information improves search experience </li></ul></ul>
  27. 27. PoolParty Search API & Standard GUI <ul><li>Available web services: </li></ul><ul><ul><li>Search Service </li></ul></ul><ul><ul><li>Suggest Service </li></ul></ul><ul><ul><li>Similarity Service </li></ul></ul><ul><li>Supported formats: </li></ul><ul><ul><li>JSON </li></ul></ul><ul><ul><li>XML </li></ul></ul><ul><ul><li>RSS </li></ul></ul>http://bit.ly/semantic_search
  28. 28. PoolParty Semantic Search Demo – Background Info Search Services Search Application Collector Semantic Indexer Document Index Cartridge Thesaurus Projects DB Web catalogue of actors Actors DB
  29. 29. Data integration based on Reegle thesaurus <sector> Hydro Power small scale </sector> Actors DB <category> Micro Hydro </category> Web catalogue
  30. 30. PoolParty Semantic Search Demo – Result http://bit.ly/semantic_search select proper facets store queries with search basket facets support structured queries find similar documents for relevant results specify your query with categorised auto-complete
  31. 31. Contact <ul><li>Andreas Blumauer Managing Director [email_address] +43-1-8974122-27 </li></ul><ul><li>Alexander Kreiser System Architect [email_address] +43-1-8974122-38 </li></ul>punkt. netServices GmbH Lerchenfelder Guertel 43 A—1160 Wien / Austria http://www.punkt.at/ http://poolparty.punkt.at/ http://bit.ly/semantic_search http://lod2.eu/ http://twitter.com/PoolParty_Team http://www.facebook.com/pages/PoolParty/134189476633941 powered by

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