1. A method for classifying character strings, comprising: receiving at least one character string, wherein each character string comprises a word or a phrase; clustering a first character string with another character string into a first group, when said first character string satisfies a predetermined degree of commonality with said another character string; and selecting at least one of said character strings in each of said groups to be a topic.
1. A method for classifying character strings, comprising: receiving at least one character string, wherein each character string comprises a word or a phrase; clustering a first character string with another character string into a first group, when said first character string satisfies a predetermined degree of commonality with said another character string; and selecting at least one of said character strings in each of said groups to be a topic. 5. The method of claim 1 , wherein said topic is a predetermined selection of at least one of said character strings.