Changing similarity
Most times, the default way to calculate the score of your documents is what you need. However, sometimes you need more from Solr than just the standard behavior. For example, you might want shorter documents to be more valuable compared to longer ones. Let's assume that you want to change the default behavior and use different score calculation algorithms for the description field of your index. This recipe will show you how to leverage this functionality.
Getting ready
Before choosing one of the score calculation algorithms available in Solr, it's good to read a bit about them. The detailed description of all the algorithms is beyond the scope of this recipe and the book (although a simple description is mentioned later in ...
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