1. APPGRADER: AN APP QUALITY GRADING SYSTEM BASED ON CODE-LEVEL FEATURES Open Access Author: Li, Xi Title: APPGRADER: AN APP QUALITY GRADING SYSTEM BASED ON CODE-LEVEL FEATURES Graduate Program: Computer Science and Engineering Keywords: Mobile App RankingApp Quality EvaluationApp ViewGraph Convolutional NetworkDeep Learning File: Download Xi-thesis.pdf Committee Members: Sencun Zhu, Thesis Advisor/Co-Advisor