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Virtual Language Observatory Facetted Browsing

This presentation discusses the implementation of facetted navigation in the Virtual Language Observatory, presented at the CLARIN Information Day in Nijmegen. Facetted navigation allows users to browse resources across multiple dimensions, such as author, subject, and date, facilitating a refined search experience. The approach enhances data insights and usability while managing scalability challenges. With a collection of 828 records and 42 attributes across 9 facets, the Virtual Language Observatory demonstrates effective techniques for resource classification and metadata integration.

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Virtual Language Observatory Facetted Browsing

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  1. 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

  2. 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

  3. 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

  4. 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)

  5. Yahoo Autos

  6. Europeana

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