Invitation to a research survey Hello Tznkai I am Allen Lin a computer science PhD student at the University of Minnesota Twin Cities Currently we are working on a project studying the main article and sub article relationship in a purpose of better serving the Wikipedia article structure We noticed that you ve created main sub article relationship in Chinese ceramics for Pinner So it would be appreciated if you could take 4 5 minutes to finish the survey questions Thanks in advance We will not collect any of your personally information Thank you for your time to participate this survey Your response is important for us