6. The method of claim 3 , further comprising automatically performing a predetermined action in response to the weightings increasing such that the values of the second topic nodes exceed a threshold.
6. The method of claim 3 , further comprising automatically performing a predetermined action in response to the weightings increasing such that the values of the second topic nodes exceed a threshold. 7. The method of claim 6 , wherein the predetermined action includes pushing information to at least one of the first and second terminals.