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Virtual Language Observatory Facetted Browsing. Claus Zinn Max Planck Institute for Psycholinguistics Nijmegen, The Netherlands Claus.Zinn@mpi.nl. Clarin Information Day, Nijmegen, July 1st 2009. Facetted Navigation.

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Virtual language observatory facetted browsing

Virtual Language ObservatoryFacetted Browsing

Claus Zinn

Max Planck Institute for Psycholinguistics

Nijmegen, The Netherlands

Claus.Zinn@mpi.nl

Clarin Information Day, Nijmegen, July 1st 2009


Facetted navigation
Facetted Navigation

  • Help users browse/find resources based on more than one dimension, or facet

    • clearly defined, mutually exclusive, collectively exhaustive

    • E.g, book collection classified using an author facet, a subject facet, a date facet etc.

  • Selecting a facet refines the result set

  • Can see breakdown and projections of the items along the dimensions (given prior facets selection)

  • Helps gathering insights about the data they are exploring

  • Used by many commercial sites

  • Computationally intensive: #contexts in browsing space grows exponentially with #items, #facets, #values


Virtual language observatory s
Virtual Language Observatory(s)

  • CLARIN LRT Resources

    • 42 attributes

    • 9 facets, with up to 196 values (organisations)

    • 828 records

    • DEMO

  • CLARIN LRT Tools, DEMO

  • DFKI NLP Software Registry, DEMO

  • IMDI Metadata

    • 32 attributes

    • 13 facets, with up to 365 values (language)

    • Ca. 190.000 IMDI records, all corpora

    • DEMO


Challenges
Challenges

  • Merge various DBs

    • Get on board the various existing content providers

    • Unify/map between metadata schemas

    • Use facets as focus points

    • Indicate origin of information provider

  • Scalability issues

    • #items, #facets, #values

  • Usability issues

    • Which facets, when?

  • Curation

    • Local/central & synch.

    • e.g., organisation names, language names

  • Integration with other access methods

    • IMDI Browser, Geographical Browser, Lexical Space (LEXUS), Conceptual Space (ViCoS)