Well, this is very interesting. Looking at the documentation provided in the link it seems like the synonym definitions must be in a file. We would define the concept expansions in another format. My question is thus; Is it possible to perform a synonym replacement based on not the file but another mechanism? I guess no. The answer would thus be to create new TokenFilters and coresponding factory, and implement it to access our format. Right? Would there be a way to enable / disable the expasion filter at runtime, i.e. for example through special parameters in the query sring? Cheers, Gert.
________________________________ Von: Shalin Shekhar Mangar [mailto:shalinman...@gmail.com] Gesendet: Sa 05.09.2009 23:23 An: solr-user@lucene.apache.org Betreff: Re: Concept Expansion On Sun, Sep 6, 2009 at 2:17 AM, Villemos, Gert <gert.ville...@logica.com>wrote: > > We would like to support concept expansion in searches, i.e. when a user > searches for 'software' then the system should also search for keywords / > phrases such as program, computer , system, package and class. > > I imagine that the right way of doing this is a request handler, which > expands a query into its conceptual similar entries and aggregates the > results. > Have you looked at SynonymFilterFactory? http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters#head-2c461ac74b4ddd82e453dc68fcfc92da77358d46 -- Regards, Shalin Shekhar Mangar. Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei, die Umwelt zu schützen. / Por favor ajude a Logica a respeitar o ambiente nao imprimindo este correio electronico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.
