> I agree with the issues with NGramFilterFactory you pointed > out and I really want to avoid using it. But the problem is > that I have Chinese tags like "电吉他" and multi-lingual > tags like "electric吉他".
I got your point. You want to retrieve "electric吉他" with the query 吉他. That's why you don't want EdgeNGram. If this is the only reason for NGram, I think you can transform "electric吉他" into two tokens "electric" "吉他" in TokenFilter(s) and apply EdgeNGram approach.
