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LUCENE IN RUBY (name: Ferret) - this is big - pay attention - O'Reilly ONLamp Blog

    • If you are planning to use Ruby in any project that will need to search anything, pay close attention to Ferret - a Ruby port of Lucene.



      Back in January, I started my rewrite of CD Baby in Rails - but one of the biggest unsolved problems was search :


      • over 100,000 albums (and adding 200 new albums a day!)
      • over 1,000,000 songs
      • need to be searchable not just by exact-match, but partial-match and mis-spelling
      • results need to be weighted so that exact-match result comes before partial-match
      • every search must search these six fields: artist, album, style, description, mis-spellings, similar-artists
      • result matches need to be weighted in this order of fields: artist, mis-spellings, similar-artists, album, style, description
      • all this has to happen in under 1 second

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