14. The method of claim 13 , wherein a semantic matching degree is determined based on the query and the one or more pieces of content for each coincidence between the global weighted semantic representation of the query and the global semantic representation of the one or more pieces of content as the coincidence for the reliability of matching of the one or more pieces of content.
15. The method of claim 14 , wherein the response to the query is selected as the one or more pieces of content having a highest semantic matching degree.