Keyphrases
- source code
- graph grammars
- open source
- software systems
- context sensitive
- information extraction
- software maintenance
- software projects
- program understanding
- software repositories
- plagiarism detection
- context free
- text files
- natural language processing
- source files
- high level
- parameter learning
- bug localization
- artificial intelligence
- semantic analysis
- data model
- database systems
- case study