Moreover, we use a normalized generation probability to indicate the initial bias of sentences towards the query q, i.e., [o] We mark cosine measure as cosine − based, mark Equation 11 based generation probability method as T F − based, and label our proposed generation probability approach based on Equation 12 as wei ght − based.
s 1 is supposed to be more similar with s 2 because it has content s 2 more concerns.