21. The method of claim 20 , wherein the decrement to the expected weight is a first value when the one or more knowledge base representations of the search content includes one or more additional entities as compared with the knowledge base representations of the search query.
21. The method of claim 20 , wherein the decrement to the expected weight is a first value when the one or more knowledge base representations of the search content includes one or more additional entities as compared with the knowledge base representations of the search query. 22. The method of claim 21 , wherein the decrement to the expected weight is a second value greater than the first value when the one or more knowledge base representations of the search query includes one or more additional entities as compared with the knowledge base representations of the search content.