27. The method of claim 26 , wherein vectorizing tokenized sentences of the reference document and of the archived document is performed using a k-skip-n-gram vectorization, wherein skip-grams of a length n with a maximum number of skipped tokens k are generated; and wherein each skip-gram is separately vectorized.
27. The method of claim 26 , wherein vectorizing tokenized sentences of the reference document and of the archived document is performed using a k-skip-n-gram vectorization, wherein skip-grams of a length n with a maximum number of skipped tokens k are generated; and wherein each skip-gram is separately vectorized. 28. The method of claim 27 , wherein the corresponding weight is determined based on the length of the skip-gram, and the number of skipped tokens.