If I search for with a query string that contains "extrahepatisch" i do not want to find documents with the word "intrahepatisch" which is a antonym.
I have a list with such antonym pairs. What is the best way to make elasticsearch use the antonym list?
You could achieve this with the Querqy Plugin and its Common Rules Rewriter.
To exclude "intrahepatisch" from the result list, you would have a rule like:
extrahepatisch => FILTER: -intrahepatisch
If you want to keep the results for "intrahepatisch" but you want them to have a lower relevance score so that they appear at the end of the result list, you could just "downvote" them:
extrahepatisch => DOWN(20): intrahepatisch
