Faceted navigation relies on metadata to organize and navigate large collections of information. Users are becoming an important source of metadata in the form of user-generated tags and annotations. By combining user-generated metadata with traditional subject indexing, new applications of faceted navigation can be created that bridge folksonomies and taxonomies to provide more compelling ways to explore and discover online information.

1. Faceted Navigation of User-Generated Metadata Bradley P. Allen Founder & CTO Siderean Software, Inc. Calit2 2006 Rescue Seminar Series, UC Irvine, July 28 th 2006

2. When search fails RAWLSTON Here's a man who might have been President. He's been loved and hated and talked about as much as any man in our time - but when he comes to die, he's got something on his mind called "Rosebud." What does that mean? GIRL What about Rosebud? Don't you think that explains anything? THOMPSON No, I don't. Not much anyway. Charles Foster Kane was a man who got everything he wanted, and then lost it. Maybe Rosebud was something he couldn't get or lost. No, I don't think it explains anything. I don't think any word explains a man's life. No - I guess Rosebud is just a piece in a jigsaw puzzle - a missing piece. RAYMOND Throw that junk in, too. Camera travels to the pile that he has indicated. It is mostly bits of broken packing cases, excelsior, etc. The sled is on top of the pile. As camera comes close, it shows the faded rosebud and, though the letters are faded, unmistakably the word "ROSEBUD" across it. The laborer drops his shovel, takes the sled in his hand and throws it into the furnace. The flames start to devour it.

3. When search fails

6. Faceted navigation in the enterprise Intelligence analysts, systems engineers Commitment to RDF/OWL as solution for cross-agency interoperability, actively using RSS Scads of all types, with unstructured information often preprocessed to boot Search, analyze and monitor complex, dynamic intelligence, project and problem information across organizations and projects (Columbia, Iraq, 9/11) Federal Government Traders, industry analysts, investment bankers Adoption of RSS for market intelligence and content delivery emerging News feeds, financial DBs, market data, client data Search, analyze and monitor dynamic financial and market data, 360-degree view of clients Financial Services Consumers, marketers Pervasive adoption of XML standards for moving product and customer data across value chains Product catalogs, customer reviews, customer service data, advertising Search and browse catalogs of products and services, consumer-generated information E-Commerce Business users Adopting metadata technologies Metadata Strong identified application fit Vertical

7. Building a faceted navigation application (in Seamark) Transformed into a unified information architecture expressed in RDF/OWL Term Event Person Place Text Analyzed to generate an application profile for faceted navigation of the aggregated metadata Presented as an end-user navigation application Metadata about data and content is aggregated

14. fac.etio.us

15. Faceted navigation + tagging

16. Faceted navigation + tagging

18. Reduce/eliminate lexical variation (before) ConceptScheme1 (Folksonomy) Resources skos:subject skos:subject skos:prefLabel skos:prefLabel “ Blogs” “ Blog”

19. Reduce/eliminate lexical variation (after) ConceptScheme1 (Folksonomy) Resources skos:subject skos:subject skos:subject skos:prefLabel skos:altLabel “ Blog” “ Blogs”

20. Relate tags to terms ConceptScheme2 (Taxonomy) skos:exactMatch “ Weblog” ConceptScheme1 (Folksonomy) Resources skos:subject skos:subject skos:prefLabel skos:altLabel “ Blog” “ Blogs” ConceptScheme2 (Taxonomy)

21. Compensate for ambiguous tags with term indexing ConceptScheme2 (Taxonomy) skos:exactMatch “ Weblog” skos:subject skos:subject ConceptScheme1 (Folksonomy) Resources skos:subject skos:subject skos:prefLabel skos:altLabel “ Blog” “ Blogs” ConceptScheme2 (Taxonomy)

22. fac.etio.us

23. fac.etio.us

27. Poptonic faceted navigation

28. Poptonic event entry

29. Modeling events in RDF <Manifestation> <Entity> 1 <Entity> 2 <Entity> n <Event> <Text> skos:broaderInstantive skos:subjectOf <Role> 2 <Role> 3 <Role> 1 <Role> 1 <Role> 2 <Role> 3 jup:hasRole jup:hasRole jup:hasRole skos:related rdfs:subPropertyOf Jup:Agent Jup:Instrument Jup:Object rdfs:subPropertyOf rdfs:subPropertyOf rdfs:subPropertyOf

30. Example event Wearing MISCHA BARTON JIMMY CHOO SHOES 2006-05-18T01:32:03-07:00 MISCHA BARTON JIMMY CHOO SHOES Wearing http:// news.search.yahoo.com / search/news?... skos:broaderInstantive skos:subjectOf jup:Wearer jup:WornItem jup:Wearer jup:WornItem jup:hasRole jup:hasRole skos:related rdfs:subPropertyOf jup:Agent jup:Object rdfs:subPropertyOf rdfs:subPropertyOf

32. Siderean Software, Inc. 390 North Sepulveda Blvd. Suite 2070 El Segundo, CA 90245-4475 USA +1 310 647-4266 http://www.siderean.com ballen at siderean dot com