12. The method as recited in claim 11 , further comprising: ranking the candidate queries using a co-occurrence double-check measure; selecting a set of top candidate queries based on ranking result.
11. The method as recited in claim 1 , wherein the providing the plurality of candidate queries in target language comprises: mining candidate queries in the target language on the Web, the each candidate query being a translation of the input query in source language or semantically related to the input query in source language.