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Our project is looking to transition to a new search engine to handle our bibliographic databases (5.5M records of bibliographic article metadata + 0.6M fulltext articles). What we are looking for is something easily tweakable, which offers fielded searches, boolean/simple search logic, customizable relevance ranking, proximity, highlighting, synonym/stemming matching. Needs to run on a linux 64-bit box. The packages I am aware of are: 1. lucene/clucene/lucy 2. kinosearch 3. xapian 4. zebra 5. invenio Am I missing any from the list? Are any of these to be excluded based on our requirements? I'd like to hear experiences from people who are using or have used these packages. TIA -- Alberto ******************************************************************** Dr. Alberto Accomazzi aaccomazzi(at)cfa harvard edu NASA Astrophysics Data System ads.harvard.edu Harvard-Smithsonian Center for Astrophysics www.cfa.harvard.edu 60 Garden St, MS 67, Cambridge, MA 02138, USA ********************************************************************