Leveraging automated sentiment analysis in software engineering.

Automated sentiment analysis in software engineering textual artifacts has long been suffering from inaccuracies in those few tools available for the purpose. We conduct an in-depth qualitative study to identify the difficulties responsible for such low accuracy. Majority of the exposed difficulties are then carefully addressed in developing SentiStrength-SE, a tool for improved sentiment analysis especially designed for application in the software engineering domain. Using a benchmark dataset consisting of 5,600 manually annotated JIRA issue comments, we carry out both quantitative and qualitative evaluations of our tool. SentiStrength-SE achieves 73.85% precision and 85% recall, which are significantly higher than a state-of-the-art sentiment analysis tool we compare with.