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What is the Semantic Web? (A mostly pictorial tour)

What is the Semantic Web? (A mostly pictorial tour). Prof. James Hendler Hendler@cs.umd.edu http://www.cs.umd.edu/~hendler http://www.mindswap.org. Presentations, Downloads and Demos:. Information Convergence. Convergence not just in devices, also in “information”

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What is the Semantic Web? (A mostly pictorial tour)

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  1. What is the Semantic Web?(A mostly pictorial tour) Prof. James Hendler Hendler@cs.umd.edu http://www.cs.umd.edu/~hendler http://www.mindswap.org Presentations, Downloads and Demos:

  2. Information Convergence • Convergence not just in devices, also in “information” • Your personal information (phone, PDA,…) Calendar, photo, home page, files… • Your “professional” life (laptop, desktop, … Grid) Web site, publications, files, databases, … • Your “community” contexts (Web) Hobbies, blogs, fanfic, social networks… • The Web teaches us that people will work to share • How do we CREATE, SEARCH, and BROWSE in the non-text based parts of our lives?

  3. Getting there: Make Web content more “machine-readable!” Lassila et al, 2002

  4. The Semantic Wave YOU ARE HERE (Berners-Lee, 03)

  5. Now. • RDF, RDFS and OWL are ready for prime time • Designs are stable, implementations maturing • Major Research investment translating into application development and commercial spinoffs • Adobe 6.0 embraces RDF • IBM releases tools, data and partnering • HP extending Jena to OWL • Tucana announces results for 1B triple queries • Proprietary OWL ontologies for vertical markets • c.f. pharmacology, HMO/health care, ... Soft drinks • Several new starts in SW space

  6. Now: huge potential • Data integration identified as $100Bs world-wide market • with significant govt interest creating a user-pull • Ontology development efforts, in OWL, aimed at information mgt ongoing in US govt include • NIST, NLM, EPA, DHS, DoD, DOJ, FDA, NIH, USGS, NOAA • Huge potential follow-on market - EAI for the small business • making external data and info resources integrable • Could do for integration what Visicalc (excel) did for report generation

  7. Now: Tools for tool builders • Like the pre-MOSAIC WWW… • …but, it is much easier to get started than it was even a year ago, • Parsers, APIs, triple-stores • http://www.daml.org/tools • http://www.w3.org/RDF • End to end no longer takes a “miracle” • Prototype OWL website took three undergraduates about 1 month. • End user tools just starting to emerge • “Metaphors” growing

  8. Tools for markup... PhotoStuff Demo

  9. Not tied to specific domains Photo from Grecia

  10. Not tied to specific domains Photo from Grecia

  11. Semantic Web Application Portals

  12. Info views…

  13. Not tied to specific domains

  14. Not tied to specific domains

  15. Not tied to specific domains

  16. With Info Contexts

  17. Shared calendars

  18. Calendar + photos + …

  19. Social networks:e.g. Friend of a Friend (FOAF) • Say stuff about yourself (or others) in OWL files, link to who you “know” <foaf:Person> <foaf:name>Jim Hendler</foaf:name> <foaf:title>Dr</foaf:title> <foaf:firstName>Jim</foaf:firstName> <foaf:surname>Hendler</foaf:surname> <foaf:mbox_sha1sum> be972c7a602683f7cf3c7a1fd0949c565debe4d3 </foaf:mbox_sha1sum> <foaf:homepage rdf:resource="http://www.cs.umd.edu/~hendler"/> <foaf:depiction rdf:resource="http://www.semanticgrid.org/q-iantbljim.jpg"/> <foaf:workplaceHomepage rdf:resource="http://owl.mindswap.org"/> <foaf:knows>http://www.cs.umd.edu/~jen/foaf.rdf</foaf:knows> </foaf:Person> Estimates of the number of Foaf users range from 2M-5M

  20. Using FOAF in other contexts JenniferGolbeck http://trust.mindswap.org

  21. Coming sooner than you may think…

  22. … and this…

  23. …and this?

  24. Emerging:Semantic Web Services Information management capabilities Discovery, Filtering, Composition

  25. Semantics and services input xsd:complex=”oncogene” Oncogene(MYC): Found_In_Organism(Human). Gene_Has_Function(Transcriptional_Regulation). Gene_Has_Function(Gene_Transcription). In_Chromosomal_Location(8q24). Gene_Associated_With_Disease(Burkitts_Lymphoma). output xsd:complex=”RiskType” <owl:Class rdf:about="http://annotation.semanticweb.org/iswc/iswc.daml#RiskIndicator"> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="http://annotation.semanticweb.org/iswc/iswc.daml#name"/> <owl:allValuesFrom rdf:resource="http://www.w3.org/2000/10/XMLSchema#string"/> </owl:Restriction> </rdfs:subClassOf> </:Class> OWL-S grounding (coming to WSDL 2.0)

  26. Get a B&N price (In Euros)

  27. Of a particular book

  28. In its German edition?

  29. Later: Automated composition

  30. Longer term?: Adding Proof

  31. The “Policy Aware Web”

  32. Conclusion • The Semantic Web is here • The question isn’t if, but “how much” • Semantic Web technologies have a promising future and an exciting potential • The business case is emerging • Enterprise integration on the Web • Database, image, and services as 1st class Web citizens • Portal technology “in the small” • The future feed is exciting • Rules and Proof -> “Policy Aware” Web

  33. MIND SWAP • Maryland Information and Network Dynamics Laboratory, Semantic Web and Agents Project • J. Hendler • B. Parsia • Jennifer Golbeck • Aditya Kalyanpur • David Wang • Daniel Krech • Evren Sirin • Corporate Research Partners: • Fujitsu Laboratory of America, College Park • Lockheed Martin Advanced Technology Laboratories • NTT Corp • SAIC Corp., Kevric Corp, Top Quadrant, Tucana, Semaview • Govt Funding: • US Army Research Laboratory, NSF, DARPA, DoD, NIST, • http://www.mindswap.org (OWL-powered Semantic Web page) • Ronald Alford • Jordan Katz • Amy Alford • Matt Westhoff • Kendall Clark • Nada Hashmi

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