Crowdsourced testing, as a distinct testing paradigm, has attracted much\nattention in software testing, especially in mobile application (app) testing\nfield. Compared with in-house testing, crowdsourced testing shows superiority\nwith the diverse testing environments when faced with the mobile testing\nfragmentation problem. However, crowdsourced testing also encounters the\nlow-quality test report problem caused by unprofessional crowdworkers involved\nwith different expertise. In order to handle the submitted …