Referred by: ASKOSI jar

Searching with Lucene in DSpace:#

To integrate SKOS within DSpace, we added:

  • indexation expansion: every concept reference is expanded in the Lucene search indexes:
    • to all translations of the preferred term
    • to all synonyms
    • to all alias of the identification code (including the main concept identification code)
    • to all notations in other coding scheme for the concept
  • auto-complete to help the user select a term and provide the corresponding code to the search engine
  • translation of the stored code for the concept reference, taking into account the user language
  • faceted browsing
  • improved result display and sort options.

We had to modify the tokenizers to ensure that a code following the syntax: ConceptScheme_ConceptId is indexed as one word and left untouched (no stemming for instance).

This work was presented at OAI7 in Geneva.

SolR, a future project?#

Making similar additions / adaptations /plugins to SolR would ensure that we can use SolR instead of Lucene (DSpace Discovery) and have a "pluggable" indexing engine with a known interface, powerful functions (facetted browsing, n-gram indexing, etc.) and nice user interfaces (BlackLight, ViewFind).

Any SolR based application would then benefit from ASKOSI benefits.

Add new attachment

Only authorized users are allowed to upload new attachments.
« This page (revision-5) was last changed on 01-déc.-2011 13:59 by Christophe Dupriez  
Referred by: ASKOSI jar