Re: How to Create a weighted function (dismax or otherwise)
good -- View this message in context: http://lucene.472066.n3.nabble.com/How-to-Create-a-weighted-function-dismax-or-otherwise-tp3119977p4138411.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: How to Create a weighted function (dismax or otherwise)
good. -- View this message in context: http://lucene.472066.n3.nabble.com/How-to-Create-a-weighted-function-dismax-or-otherwise-tp3119977p4138401.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: How to Create a weighted function (dismax or otherwise)
> Are there any best practices or > preferred ways to accomplish what I am > trying? People usually prefer multiplicative boosting. But in your case you want additive boosting. Dismax's bf is additive. There is also _val_ hook. http://wiki.apache.org/solr/SolrQuerySyntax > Do the params for defType, qf and bf belong in a solr > request handler? They can be defined in defaults section in request handler as well as via query parameters. q=test&pf=...&qf=... > Is it possible to have the weights as variables so they can > be tweaked till > we find the optimum balance in showing our results? Yes you can try different settings on the fly using query parameters.
Re: How to Create a weighted function (dismax or otherwise)
Are there any best practices or preferred ways to accomplish what I am trying? Do the params for defType, qf and bf belong in a solr request handler? Is it possible to have the weights as variables so they can be tweaked till we find the optimum balance in showing our results? Thanks! -- View this message in context: http://lucene.472066.n3.nabble.com/How-to-Create-a-weighted-function-dismax-or-otherwise-tp3119977p3122630.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: How to Create a weighted function (dismax or otherwise)
> I am trying to create a feature that > allows search results to be displayed by > this formula sum(weight1*text relevance score, weight2 * > price). weight1 and > weight2 are numeric values that can be changed to influence > the search > results. > > I am sending the following query params to the Solr > instance for searching. > > q=red > defType=dismax > qf=10^name+2^price Correct syntax of qf and pf is fieldName^boostFactor, i.e, qf=name^10 price^2 However your query is a word, so it won't match in price field. I assume price field is numeric. You can simulate sum(weight1*text relevance score, weight2 * price). with bf parameter and FunctionQueries. q=red&defTypeedismax&qf=name&bf=product(price,w1/w2) http://wiki.apache.org/solr/FunctionQuery http://wiki.apache.org/solr/DisMaxQParserPlugin#bf_.28Boost_Functions.29
How to Create a weighted function (dismax or otherwise)
I am trying to create a feature that allows search results to be displayed by this formula sum(weight1*text relevance score, weight2 * price). weight1 and weight2 are numeric values that can be changed to influence the search results. I am sending the following query params to the Solr instance for searching. q=red defType=dismax qf=10^name+2^price My understanding is that when using dismax, Solr/Lucene looks for the search text in all the fields specified in the "qf" param. Currently my search results are similar to those I get when "qf" does not including a price. I think this is because price is a numeric field and there is not text match. Is it possible to rank search results based on this formula - sum(weight1*text relevance score, weight2 * price). Thanks! -- View this message in context: http://lucene.472066.n3.nabble.com/How-to-Create-a-weighted-function-dismax-or-otherwise-tp3119977p3119977.html Sent from the Solr - User mailing list archive at Nabble.com.
