National Engineering Research Center of Digital Life;
School of Data and Computer Science;
Sun Yat-sen University Guangzhou 510006;
China;
School of Information Engineering;
Hebei GEO University;
Shijiazhuang 050031;
China;
Guangdong Key Laboratory for Big Data Analysis and Simulation of Public Opinion;
School of Communication and Design;
Sun Yat-sen University;
Guangzhou 510006;
China;
School of Information Science and Technology;
Guangdong University of Foreign Studies;
Guangzhou 510006;
China;
Guangdong Key Laboratory of Big Data Analysis and Processing;
Guangzhou 510006;
China;
commit message recommendation; code syntax similarity; code semantic similarity; code change comprehension;