I just want to know the scoring mechanism(similarity) used in the given index.For example, if I have a index called test_es, then I want to know which scoring mechanism is used in test_es index. Also, I wanted to know by default in elasticsearch 8.3 which scoring mechanism is used.
My usecase is I have a field called subjects which is a list. This field will be having multiple values. For example one doc has ['subject one', 'subject two', 'subject three'], another doc has ['one test', 'one example', 'two'] in field name. So when I search for subject one in field name, I should get the first document first since it is most relevant, but I was getting the second doc first, even though I am sorting the result by _score Thank you