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Semantic Web - Technik und Einsatz

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A (german) talk given at webinale 2008 in Karlsruhe, Germany. Idea and examples of SemWeb technology

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  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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  • DOWNLOAD THAT BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download Full doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download PDF EBOOK here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download EPUB Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... Download doc Ebook here { http://bit.ly/2m6jJ5M } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer that is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story That Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money That the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths that Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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Semantic Web - Technik und Einsatz

  1. 1. Benjamin Nowack, semsol Semantic Web – Technik und Einsatz
  2. 2. Semantic Web – Technik und Einsatz • In dieser Session: – Informationsaustausch (allgemein und im Web) – Semantic Web: Idee und Ziele – Technische Anforderungen (+ Nice2Haves) – SemWeb konkret • (am Beispiel der webinale/DLW/IPC-Seiten) Benjamin Nowack, semsol 2008-05-27 2
  3. 3. Informationsaustausch Information Information Encoding Decoding Data Benjamin Nowack, semsol 2008-05-27 3
  4. 4. Dekodierung von Daten 1.(Er)kennen des Mediums – Ton, Bild, Text, Video, ... 2.Entschlüsselung der Strukturen/Signale – mehrschichtig (z.B. E-Mail - .doc - Text - deutsch) 3.Erkennen der Semantik (Bedeutung) – z.B. Einladung Information = Daten + Syntax + Semantik Benjamin Nowack, semsol 2008-05-27 4
  5. 5. Von Information zu Wissen • Wissen = Kombination von Informationen „Einladung zum 30sten“ + „Wir haben das Jahr 2008“ => „Geburtsjahr ist 1978“ + „Mein Geburtsjahr ist 1973“ + „1973 liegt vor 1978“ => „Ich bin älter“ Begriff der „Inferenz“ Benjamin Nowack, semsol 2008-05-27 5
  6. 6. Das Web vereinfacht Wissensprozesse • vereinheitlichtes Medium (Internet) • vereinheitlichte Basis-Formate (z.B. HTML) • vereinheitlichter Datentransfer (HTTP) • globaler Zugriff (URIs) • Verknüpung von Informationsquellen (Links) Computer helfen beim Datenaustausch und der Datenaufbereitung Benjamin Nowack, semsol 2008-05-27 6
  7. 7. Grenzen für Computer im Web (bisher) • Lediglich Zugriff auf Dokumente (= Daten), prinzipiell nicht auf Informationen in den Dokumenten – z.B. klassische Volltext-Suche • Semantik bestimmter Strukturen ist begrenzt und zentral vorgegeben – z.B. <title>, <hx>...</hx>, GET/POST „No Semantics - No Party“ (humans only) Benjamin Nowack, semsol 2008-05-27 7
  8. 8. Für Computer nur ein Dokument Menschen erschließt sich (u.U.) die Semantik Benjamin Nowack, semsol 2008-05-27 8
  9. 9. Semantic Web: Idee und Ziele Was wäre, wenn ... wir Web-Inhalte feiner strukturieren könnten als bisher, auch für Computer? Vom „Web of Documents“ zum „Web of Data“ Benjamin Nowack, semsol 2008-05-27 9
  10. 10. Semantic Web: Das Web als Datenbank • „The new bit in the Semantic Web isn't the semantics, it's the Web“ (Jim Hendler) – Bessere Filtermöglichkeiten – (teil-)automatisierte Informationsverarbeitung • z.B. Produktsuche und -vergleich – vereinfachter Datenaustausch – Erkennen relevanter Verknüpungen und Zusammenhänge • z.B. Expertensuche => Zeit- und Kostenersparnis (Eff zienz!) i Benjamin Nowack, semsol 2008-05-27 10
  11. 11. „A little semantics goes a long way“ • PageRank – Link = Relevanz • Bilder- und Video-Suche – Typisierung von Dateien + Tags oder Titel • News-Verteilung über RSS/Atom – Datum, Schlagworte, Quelle/Feed • ... ROI und Upgrade-Pfade beachten! Benjamin Nowack, semsol 2008-05-27 11
  12. 12. Neue technische Anforderungen • Feinere inhaltliche Strukturen – vorgegeben oder frei definierbar? • Syntax zur Kodierung der neuen Strukturen – einfach, universell, separat? • Bereitstellung der Semantik d. n. Strukturen – einheitlich, maschinenlesbar, verknüpfbar? • Dekodier-Software („Parser“ und Co.) – universell? – automatische anschließende Verarbeitung? Benjamin Nowack, semsol 2008-05-27 12
  13. 13. SemWeb konkret • Namen und Fotos aller Speaker von webinale, DLW und IPC • Alle Sessions von webinale, DLW und IPC • Alle Sessions zum Thema X • (Potentielle) Experten zum Thema X • ... Benjamin Nowack, semsol 2008-05-27 13
  14. 14. microformats • Nutzen und erweitern die Semantik von HTML-Elementen – (z.B. <img class=“photo“ ... />) • Vorgebene Menge an Formaten – hCard, hCalendar, hReview, geo, adr, hAtom... • zentralisierter „Prozess“ • gewisse Kombination („Nesting“) ist möglich • kleine Markup-Änderungen - große Wirkung Benjamin Nowack, semsol 2008-05-27 14
  15. 15. hCard-Markup für Speaker <div id=quot;speakerquot; class=“vcard“> <h3><span class=“fn“>Benjamin Nowack</span> <span class=quot;company org organization- namequot;>semsol web semantics</span> </h3> <p> <span class=quot;pic float_leftquot;> <img class=“photo“ src=quot;...2043.jpgquot; /> </span> Benjamin Nowack ist ... </p> ... </div> http://createordie.de/webinale/speaker.php Benjamin Nowack, semsol 2008-05-27 15
  16. 16. hCalendar-Markup für Sessions <td class=quot;webinale veventquot;> <div class=quot;language deutschquot;></div> <div class=quot;title summaryquot;> <a class=“url“ href=quot;javascript:NF('http://...id=7448')quot;> Semantic Web – Technik und Einsatz </a> </div> <div class=quot;speakerquot;>Benjamin Nowack </td> http://it-republik.de/konferenzen/planer/webinale08_zeitplaner.html Benjamin Nowack, semsol 2008-05-27 16
  17. 17. Operator microformats extractor Funktioniert super für einzelne Seiten Benjamin Nowack, semsol 2008-05-27 17
  18. 18. RDF - Resource Description Framework • Framework, nicht nur Format – Modell, Abfragesprache, Formate, ... • Beschreiben beliebiger Daten(-Strukturen) • Aggregation und Integration • Die Basis-Elemente sind „Triples“ (3-Tupel): – Subject, Predicate, Object – <#event12> dc:title „Semantic Web“ • Mehrere Tripel bilden einen Graph • URIs, URIs, URIs Benjamin Nowack, semsol 2008-05-27 18
  19. 19. RDF Modell und Turtle Syntax <#alec> foaf:name “Alec Tronnik” ; corp:attendsTo <kunden#x> . <kunden#x> corp:mainContact _:bn1 . _:bn1 foaf:name “Peer Schäck” . ... Benjamin Nowack, semsol 2008-05-27 19
  20. 20. RDF-Tools können µFormats einlesen • Speaker vCards z.B. als foaf:Person/Agent – foaf = http://xmlns.com/foaf/0.1/ • Sessions als RDF/iCal Vevents – cal = http://www.w3.org/2002/12/cal# • Es gibt Online-Konvertierer und µF-Parser in einigen RDF Toolkits – triplr.org – Virtuoso Sponger – ARC2 Benjamin Nowack, semsol 2008-05-27 20
  21. 21. SPARQL - SQL für das Web • „SPARQL Protocol and RDF Query Language“ • Erweitert das Tripel-Modell zu Quads – Kontext, Quelle, Container, ... • Lese-Zugriff auf RDF-Speicher – Select, Describe, Construct, Ask – Kann als Regelsystem verwendet werden • SPARQL Update entsteht derzeit noch Benjamin Nowack, semsol 2008-05-27 21
  22. 22. SPARQL LOAD (in ARC via SPARQL+) LOAD <http://localhost/webinale/run/speakers/webinale> 415 triples LOAD <http://localhost/webinale/run/speakers/ipc> 67 triples LOAD <http://localhost/webinale/run/speakers/dlw> 161 triples Benjamin Nowack, semsol 2008-05-27 22
  23. 23. SPARQL SELECT PREFIX foaf: <http://xmlns.com/foaf/0.1/> SELECT DISTINCT ?name WHERE { ?s a foaf:Agent . ?s foaf:name ?name . } ORDER BY ?name Aber: Keine richtige Möglichkeit, Speaker als solche zu identifizieren, oder ihre Sessions. Benjamin Nowack, semsol 2008-05-27 23
  24. 24. RDFa - Beliebige Strukturen in HTML • „a“ für „in Attributes“: – @typeof, @about, @rel, @resource, ... • frei wählbare Vokabulare (über XML Namespace Syntax) • komplizierter als µFs, eignet sich aber sehr gut für „glue data“ – z.B. Typisierung von Speakern, oder zur Verknüpfung von Speakern und Sessions • „Linked Data Enabler“ Benjamin Nowack, semsol 2008-05-27 24
  25. 25. RDF Schema • „RDF Vocabulary Description Language“ • Basis-Elemente „Class“ und „Property“ • Hierarchien (subClassOf, subPropertyOf) • Zuordnung von Eigenschaften zu Klassen • Klassif zierung durch Inferenz möglich i • Wird durch OWL (Web Ontology Language) erweitert Benjamin Nowack, semsol 2008-05-27 25
  26. 26. Swoogle: Index für RDF-Vokabulare Benjamin Nowack, semsol 2008-05-27 26
  27. 27. RDFa-Markup für Sessions/Speaker <!DOCTYPE html PUBLIC quot;-//W3C//DTD XHTML+RDFa 1.0//ENquot; quot;http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtdquot;> <html xmlns:cal=quot;http://www.w3.org/2002/12/cal#quot; xmlns:pres=quot;http://www.w3.org/2004/08/Presentations.owl#quot; xmlns:foaf=quot;http://xmlns.com/foaf/0.1/quot;> ... <td class=quot;webinalequot; typeof=quot;pres:Talkquot;> <div class=quot;titlequot; property=quot;cal:summaryquot;> <a rel=quot;cal:urlquot; href=quot;...id=7448quot;> Semantic Web ... </a> </div> <div class=quot;speakerquot; rel=quot;pres:presenterquot;> <span property=quot;foaf:namequot;>Benjamin Nowack</span> </div> </td> Benjamin Nowack, semsol 2008-05-27 27
  28. 28. Alle Speaker und Talks PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX cal: <http://www.w3.org/2002/12/cal#> PREFIX pres: <http://www.w3.org/2004/08/Presentations.owl#> SELECT DISTINCT ?name ?img ?talk_title WHERE { ?speaker foaf:img ?img ; foaf:name ?name . ?talk pres:presenter [foaf:name ?name ] . ?talk cal:summary ?talk_title . } ORDER BY ?name Benjamin Nowack, semsol 2008-05-27 28
  29. 29. SPARQL with a tiny bit of PHP Benjamin Nowack, semsol 2008-05-27 29
  30. 30. It's a menu – Just pick what you like! Benjamin Nowack, semsol 2008-05-27 30

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