Hi All, We are using Solr 7.3.1 in PROD and have a few thousand blogs indexed in Solr along with other types of documents. I am working on a requirement where we need to give more weight to the author field if someone is searching for "Author name + topic".
For example, let's say we have three fields - author, title, text. If we search "Brian marketing" then those "marketing" blogs where "Brian" is the author should be ranked higher than other blogs where "Brian" is mentioned in either title or text fields. In order to achieve this, I thought of giving more weight to the author field. This looks ok but I also had to update mm (minimum match) parameter from 100% to 1 in solrconfig.xml file otherwise the author field wouldn't even be matched in case of phrase queries. Now as a side effect of this mm change, total hit count has increased dramatically which affects precision. I did something like this in solrconfig.xml, I tried to use conditional mm to minimize the impact of this change for other fields especially in case of larger phrase query :- <str name="defType">edismax</str> <str name="qf">title^2 author^3 text</str> <str name="mm">1<50% 4<-1</str> <str name="tie">0.1</str> Now, here are my questions :- 1) Is there any way to just override mm(=1) for the author field and keep mm = 100% for all other fields? 2) Is my approach correct? Is there any better way to achieve the desired result? Thanks in advance. Regards, Vinay
