Hi Leonardo, I've been using the synonym filter at index time (expand = true) and it works just fine. Also use OR as the default operator. Once you do it at index time there is no point doing it at query time (which in fact is likely to be the reason of your problems). Have a look at the Wiki page Yonik sent about it. Cheers, Daniel
________________________________ From: Leonardo Dias [mailto:leona...@catho.com.br] Sent: 31 March 2009 20:40 To: solr-user@lucene.apache.org Subject: Re: Problems with synonyms Hi, Vernon! We tried both approaches: OR and AND. In both cases, the results were smaller when the synonyms was set up, with no change at all when it comes to synonyms. Any other ideas? Is it likely to be a bug? Best, Leonardo Vernon Chapman escreveu: Leonardo, I am no expert but I would check to make sure that the DefaultOperator parameter in your schema.xml file is set to OR rather thank AND. Vernon On 3/31/09 3:24 PM, "Leonardo Dias" <leona...@catho.com.br> <mailto:leona...@catho.com.br> wrote: Hello there. How are you guys? We're having problems with synonyms here and I thought that maybe you guys could help us on how SOLR works for synonyms. The problem is the following: I'd like to setup a synonym like "dba, database administrator". Instead of increasing the number of results for the keyword "dba", the results got smaller and it only brought me back results that had both the keywords "dba" and "database administrator" at the same time instead of bringing back both "dba" and "database administrator" as expected since our synonym configuration is using expand=true. Since in the past this was not the expected behavior, I'd like to know whether something changed in the solr/lucene internals so that this functionality is now lost, or if I'm doing something wrong with my setup. Currently all fields pass through the Synonym filter factory. The analysis shows me that it tries to search for database administrator and DBA. A debug query also shows me that the query it's trying to do is something like this: +DisjunctionMaxQuery((title:"(dba datab) administr")~0.1) DisjunctionMaxQuery((title:"(dba datab) administr"^100000.0 | observation:"(dba datab) administr"^10.0 | description:"(dba datab) administr"^10.0 | company:"(dba datab) administr")~0.1) The problem is: when I search for this, I get 5 results. When I search for dba only, without the "dba, database administrator" line in the synonyms.txt file, I get more than 100 results. Do you guys know why this is happening? Thank you, Leonardo -- Leonardo Dias Gerente de Processos Estratégicos leona...@catho.com.br <mailto:ego...@catho.com.br> Tel.:(11) 3177.0742 Ramal: 742 www.catho.com.br <http://www.catho.com.br/> Antes de imprimir, pense no meio ambiente. Esta mensagem é destinada exclusivamente para a(s) pessoa(s) a quem é dirigida, podendo conter informação confidencial e legalmente protegida. Se você não for destinatário desta mensagem, desde já fica notificado de abster-se a divulgar, copiar, distribuir, examinar ou, de qualquer forma, utilizar a informação contida nesta mensagem, por ser ilegal. Caso você tenha recebido esta mensagem por engano, pedimos que responda essa mensagem informando o acontecido. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.
