Suggestion for Multilingual search evaluation

Hi all,

Assume I designed a set of analyzer for different language and I am capable
of assign the analyzer to the corresponding document.
And also assume there are documents of different language inside ES, which
means It's ready to perform search.

Are there any ways to test the ability or correctness of these analyzer?
Are there any rules or test cases to know the amount of error?
I wanna know the metric or something to know the search is reasonable.

Suggestions ?



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