Hi David, I implemented bm25f for Europeana on Solr 4.x a couple of years ago, you can find it here:
https://github.com/europeana/contrib/tree/master/bm25f-ranking maybe I should contribute it back.. Please do not hesitate to contact me if you need help :) Cheers, Diego From: solr-user@lucene.apache.org At: Apr 14 2016 17:48:50 To: solr-user@lucene.apache.org Subject: Re: Solr Support for BM25F Hey David You can configure BM25 differently for each field by configuring the similarity per field type, as shown here in this example from the Solr tests https://github.com/sudarshang/lucene-solr/blob/master/solr/core/src/test-files/solr/conf/schema-bm25.xml#L32 On Thu, Apr 14, 2016 at 12:41 PM, David Cawley <david.cawl...@mail.dcu.ie> wrote: > Hello, > I am developing an enterprise search engine for a project and I was hoping > to implement BM25F ranking algorithm to configure the tuning parameters on > a per field basis. I understand BM25 similarity is now supported in Solr > but I was hoping to be able to configure k1 and b for different fields such > as title, description, anchor etc, as they are structured documents. > I am fairly new to Solr so any help would be appreciated. If this is > possible or any steps as to how I can go about implementing this it would > be greatly appreciated. > > Regards, > > David > > Current Solr Version 5.4.1 > -- *Doug Turnbull **| *Search Relevance Consultant | OpenSource Connections <http://opensourceconnections.com>, LLC | 240.476.9983 Author: Relevant Search <http://manning.com/turnbull> 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.
