User talk:Zjl9191

November 2013
Welcome to Wikipedia. Although everyone is welcome to make constructive contributions to Wikipedia, at least one of your recent edits, such as the one you made to Data mining, did not appear to be constructive and has been reverted. Please use the sandbox for any test edits you would like to make, and read the welcome page to learn more about contributing constructively to this encyclopedia. Thank you.

Please refrain from such childish edits. They will be reverted in seconds, as we see thousands of them every day. --Chire (talk) 12:33, 27 November 2013 (UTC)