do we stem the words for ES while harvesting and in the query

[kohlhase]

or does ES do that itself? Concretely, do we find "arithmetic progressions" and "arithmetical progression" when looking for "arithmetic progression"?

[kohlhase]

I think this is still an issue.

[kohlhase]

actually, this is primarily a question, if I know the answer, then we can decide what we want to do.

[a-hambasan]

Elasticsearch's analyzer doesn't do stemming by default. If we want to stem the words, we have to set it accordingly (which we didn't). So no, at the moment, ES doesn't stem the words.

[kohlhase]

thanks.