I have the following simplified setting: My schema contains one text field, named "text". When I perform a query, I need to get the scores for the same text field but for different similarity functions (e.g. TFIDF, BM25..) and combine them externally using different weights. An obvious way to achieve this is to keep multiple copies of the text field in the schema for each similarity. I am wondering though whether there is a more space-efficient way of doing this.
Thanks, Nikos
