Welcome to the official GitHub organization of NCUSI — a research group at the Faculty of Mathematics and Computer Science, Nicolaus Copernicus University in Toruń. We explore the intersection of Software Engineering, Artificial Intelligence, and Data Mining.

Our work focuses on:

• Mining and understanding software repositories
• Software vulnerability analysis and security
• Automated program repair and LLM-based coding support
• High-performance computing and data-intensive systems

We publish in top-tier venues like:

• IEEE/ACM MSR
• IEEE Transactions on Software Engineering
• Journal of Intelligent Information Systems

A few of our recent contributions:

• Out of Sight, Still at Risk: The Lifecycle of Transitive Vulnerabilities in Maven
  • Replication package
• HaPy-Bug - Human Annotated Python Bug Resolution Dataset
  • Replication package
• How I Learned to Stop Worrying and Love ChatGPT
  • Replication package
• The Secret Life of CVEs
  • Replication package
• Tracking Buggy Files: New Efficient Adaptive Bug Localization Algorithm
• Profile based recommendation of code reviewers
• Fast JSON Parsing with GPU Metaprogramming

A tool for automated patch analysis and fine-grained classification of bug fixes. Used in our MSR 2025 studies to analyze the XZ Utils supply chain attack and other security-related commits.

We’re a collaborative team and often work across universities and disciplines. Get in touch if you're interested in research collaboration!

Piotr Przymus