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Research Interests:  Software engineering, software evolution, source code analysis, exploration, and manipulation

The research program focuses on the construction of methods, tools, and environments to assist in the evolution of large-scale software systems.  Topics of investigations include source code representations, syntactic differencing, textual analysis of software artifacts, program understanding, reverse engineering, program transformation, traceability link recovery and maintenance, mining software repositories, and software visualization to support understanding of large-scale systems.