Auf der Suche nach der besseren Suche

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Wie semantische Suche und Semantic Web unsere Arbeitsweisen verändert - präsentiert im April bei Digitalks #13 in Wien

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Auf der Suche nach der besseren Suche

  1. 1. Auf der Suche nach der besseren Suche Wie semantische Suche und Semantic Web unsere Arbeitsweisen verändert 21. April 2010 Mag. Andreas Blumauer Semantic Web Company
  2. 2. Agenda © Semantic Web Company – http://www.semantic-web.at/ 1. Wozu Semantische Suche? Prinzipien Semantischer Technologien & des Semantic Web 2. Anwendungen semantischer Technologien 3. Ganz kurze Einführung in das Semantic Web 4. Trends und Conclusio
  3. 3. Was heißt „Suchen“? © Semantic Web Company – http://www.semantic-web.at/ <ul><ul><li>(1) Punkt-Genaue Suche (Faktenwissen) z.B. „ Eyjafjallajökull “ </li></ul></ul><ul><ul><li>(2) Sammeln und Recherchieren z.B. „volcanoes in Iceland“ </li></ul></ul><ul><ul><li>(3) Suche in Assoziationsräumen / Erkennen von Zusammenhängen z.B. Vulkanausbrüche und Klimaveränderungen </li></ul></ul><ul><ul><li>(4) Fragen & Antworten z.B. „Which volcanoes in Iceland erupted in 2010?“ </li></ul></ul><ul><ul><li>(5) Serendipity Benutzer weiß nicht, was er/sie wissen muss  Erkennen neuer Möglichkeiten </li></ul></ul>Lernen /Navigieren Suchen
  4. 4. Wozu Semantische Suche? © Semantic Web Company – http://www.semantic-web.at/ Eyfafyell…..
  5. 5. Wozu Semantische Suche?? © Semantic Web Company – http://www.semantic-web.at/ Eyfafyell…..
  6. 6. Semantische Suche! © Semantic Web Company – http://www.semantic-web.at/ http://www.bing.com/reference/
  7. 7. Information, Metadata & Ontologies © Semantic Web Company – http://www.semantic-web.at/ Unstructured Information Structured Information Metadata Ontology has topic is author „ Eyjafjallajökull“ Robert is a is a is a Is located in is not Iceland Geographic entity volcano Greenland
  8. 8. Semantische Suche = Präzisere Resultate © Semantic Web Company – http://www.semantic-web.at/ https://www.astandis.at/shopV5/search/Search.action
  9. 9. Agenda © Semantic Web Company – http://www.semantic-web.at/ 1. Wozu Semantische Suche? Prinzipien Semantischer Technologien & des Semantic Web 2. Anwendungen semantischer Technologien 3. Ganz kurze Einführung in das Semantic Web 4. Trends und Conclusio
  10. 10. Anwendungsszenarien – Überblick © Semantic Web Company – http://www.semantic-web.at/ 1 2 3 4 5 6 Moderated / Faceted Search Creation of complex queries Navigation & Browsing Orientation in Documents Similarity (Recommender Systeme) Understanding relations Learning (Q&A-Machines) Discovering facts instead of Documents Dossiers & Trends Mashing Up Information Sentiment Detection Capturing moods about certain topics
  11. 11. Moderated / Faceted Search © Semantic Web Company – http://www.semantic-web.at/ 1 <ul><li>Challenge Keywords are not sufficient to define complex queries </li></ul><ul><li>Solution Categories allow to bring order to a collection of documents within predefined contexts </li></ul><ul><li>Demo http:// www.ecoi.net http://www.emteba.at http://www.gopubmed.com </li></ul>
  12. 12. Navigation & Browsing © Semantic Web Company – http://www.semantic-web.at/ 2 <ul><li>Challenge Working through large amounts of documents is energy and time intensive </li></ul><ul><li>Solution By Entity Extraction orientation and reading speed is enhanced. </li></ul><ul><li>Demo https://addons.mozilla.org/de/firefox/addon/3999 http://www.rsc.org/publishing/journals/projectprospect/index.asp </li></ul>
  13. 13. Similarity (Recommender Systeme) © Semantic Web Company – http://www.semantic-web.at/ 3 <ul><li>Challenge Traditional search techniques just make implicit statements about the relation between documents. </li></ul><ul><li>Solution By applying a semantic index the similarity of documents can be calculated with respect to different viewpoints. </li></ul><ul><li>Demo http://poolparty.punkt.at/ http://bookmarks.insuggest.com/ </li></ul>
  14. 14. Learning (Q&A Machines) © Semantic Web Company – http://www.semantic-web.at/ 4 <ul><li>Challenge Traditional search techniques just reference documents but not facts. </li></ul><ul><li>Solution A Semantic Index supports the extraction of facts </li></ul><ul><li>Demo http:// www.wolframalpha.com http://www.ask.com http://start.csail.mit.edu/ </li></ul>
  15. 15. Dossiers & Trends © Semantic Web Company – http://www.semantic-web.at/ 5 <ul><li>Challenge How can I collect information that is distributed over several databases? </li></ul><ul><li>Solution Mash it up (and use RDF)! </li></ul><ul><li>Demo http://trends.ellerdale.com/ http:// sig.ma http://www.silobreaker.com/ http://topics.nytimes.com/ </li></ul>
  16. 16. Sentiment Detection © Semantic Web Company – http://www.semantic-web.at/ 6 <ul><li>Challenge Traditional search techniques tell us little about the moods & motives of people </li></ul><ul><li>Solution Mine for information that give statements about the sentiment towards anything. </li></ul><ul><li>Demo http://www.wingify.com/labs.php </li></ul>
  17. 17. Sentiment analysis – further example © Semantic Web Company – http://www.semantic-web.at/
  18. 18. Agenda © Semantic Web Company – http://www.semantic-web.at/ 1. Wozu Semantische Suche? Prinzipien Semantischer Technologien & des Semantic Web 2. Anwendungen semantischer Technologien 3. Ganz kurze Einführung in das Semantic Web 4. Trends und Conclusio
  19. 19. Das „Triple“ – die „Grundwährung“ im Semantic Web <ul><li>Das Semantic Web ist ein globales Web von Fakten </li></ul><ul><li>Fakten werden hier als „Triples“ gespeichert </li></ul><ul><li>Jedes Triple gehorcht diesem Muster: subject , predicate , object </li></ul>© Semantic Web Company – http://www.semantic-web.at/ Java island is an subject object predicate
  20. 20. Uniform Resource Identifier (URI) <ul><li>Strings können mehrdeutig sein, z.B. „Java = island = programming language“ </li></ul><ul><li>Um „Java“ eindeutig bestimmen zu können, benötigen wir so genannte URIs: </li></ul>© Semantic Web Company – http://www.semantic-web.at/ http://dbpedia.org/resource/Java http://dbpedia.org/resource/Java_(programming_language)
  21. 21. Ja, das Semantic Web existiert … und es ist riesig! © Semantic Web Company – http://www.semantic-web.at/ LOD Cloud ~ 4.7 Mrd. Fakten
  22. 22. Agenda © Semantic Web Company – http://www.semantic-web.at/ 1. Wozu Semantische Suche? Prinzipien Semantischer Technologien & des Semantic Web 2. Anwendungen semantischer Technologien 3. Ganz kurze Einführung in das Semantic Web 4. Trends und Conclusio
  23. 23. Semantic Search: Market- & Technology Trends <ul><li>Search Engines start combining text mining with ontologies </li></ul><ul><li>Text Mining available as Web-Service </li></ul><ul><li>Enterprise Search starts to augment enterprise data with data from outside sources (LOD Cloud) </li></ul>© Semantic Web Company – http://www.semantic-web.at/
  24. 24. It´s not only about „searching“ but also about discovering „relations“ © Semantic Web Company – http://www.semantic-web.at/ Who knows whom? Who is interested in what? Who knows what? How do topics relate to each other? How do I find documents about a certain topic? Where are topics being discussed? Who belongs to which Community?
  25. 25. Get in touch – „Open Dialogue“ <ul><li>Kostenlose Webinare der SWC </li></ul><ul><li>Nächste Termine </li></ul><ul><ul><li>Donnerstag, 6.5.2010 09:00 – 10:30 </li></ul></ul><ul><ul><li>Donnerstag, 20.5.2010 09:00 – 10:30 </li></ul></ul><ul><li>Bitte melden Sie sich auf http://www.semantic-web.at/ an! </li></ul>© Semantic Web Company – http://www.semantic-web.at/
  26. 26. Zum sechsten Mal: <ul><li>– 3. September 2010, Graz </li></ul><ul><li>http://i-semantics.at/ </li></ul><ul><li>co-located with: </li></ul>© Semantic Web Company – http://www.semantic-web.at/
  27. 27. Andreas Blumauer Semantic Web Company <ul><li>[email_address] </li></ul>© Semantic Web Company – http://www.semantic-web.at/ Semantic Web Company GmbH Lerchenfelder Gürtel 43 A-1160 Wien Tel. +43 1 402 12 35 [email_address]

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