> The maxScore is 772 when I remove the description. > I suppose the actual question, then, is if a low relevancy score on one field hurts the rest of them / the cumulative score,
This depends a lot on how you're searching over these fields. Is this a (e)dismax query? Or a lucene query? Something else? Across fields there's query normalization, which attempts to take a sum of squares of IDFs of the search terms across the fields being searched. Adding/removing a field could impact query normalization. By removing a field, you also likely remove a boolean clause. By removing the clause, there's less of a chance the coordinating factor (known as coord) would punish your relevancy score. Otherwise, don't know -- perhaps you could give us more information on how you're searching your documents? Perhaps a sample Solr URL that shows how you're querying? Cheers, -- *Doug Turnbull **| *Search Relevance Consultant | OpenSource Connections, LLC | 240.476.9983 | http://www.opensourceconnections.com Author: Relevant Search <http://manning.com/turnbull> from Manning Publications This e-mail and all contents, including attachments, is considered to be Company Confidential unless explicitly stated otherwise, regardless of whether attachments are marked as such. On Mon, May 18, 2015 at 1:57 PM, John Blythe <j...@curvolabs.com> wrote: > Background: > I'm using Solr as a mechanism for search for users, but before even getting > to that point as a means of intelligent inference more or less. Product > data comes in and we're hoping to match it to the correct known product > without having to use the user for confirmation/search. > > Problem: > I get a maxScore (with the correct result at the top) of 618.22626 using > the manufacturer's name, the product number, and the product description. > All of these items are coming from a previous purchaser so we have to > account for manufacturer name variations, miskeying of product numbers, and > variances of descriptions. The maxScore is 772 when I remove the > description. > > My initial question is regarding relevancy scoring ( > https://wiki.apache.org/solr/SolrRelevancyFAQ). I get that many of the > description's tokens will be found throughout the other documents, thus > keeping the relevancy at bay per the IDF portion of the relevancy score. I > suppose the actual question, then, is if a low relevancy score on one field > hurts the rest of them / the cumulative score, or if it simply keep that > field's contribution lower than it'd otherwise be. I thought it was the > latter, but the results I mention above are making me think that the first > scenario is actually the case. > > Based on what I hear about the above, a follow up question may be what in > the world is wrong with my analyzer :) > > Thanks for any thoughts! > > Best, > John >
