DUNE/sandreco
Apr 2025 – Jul 2025
2 Months active
Languages Used
C++
Technical Skills
C++C++ DevelopmentData AnalysisGeometry ProcessingKalman FilterParticle Physics
Giulia Lupi
PROFILE
Giulia Lupi
During their work on the DUNE/sandreco repository, Lupi developed a noise matrix computation tool and enhanced the Kalman filter to improve tracking accuracy in particle physics simulations. They introduced geometry-aware modeling and digitization alignment, expanding the testing and visualization framework to validate these improvements. Lupi also integrated a BVH-based spatial indexing system, enabling efficient geometry mapping and adjacent-cell searches across the SANDGeo/SANDRECO stack. Their contributions included a refactor for internal ID type consistency and the resolution of merge conflicts, demonstrating depth in C++ development, data structures, and performance optimization while ensuring robust, maintainable code for complex scientific workflows.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
11Total
Bugs
1
Commits
11
Features
2
Lines of code
2,147
Activity Months2
Your Network
20 people
Work History
July 2025
7 Commits • 1 Features
Jul 1, 2025July 2025 performance-focused milestone for DUNE/sandreco: Implemented a BVH-based spatial indexing system with complete build, search, and cross-stack integration. BVH library usage includes tree construction, geometry-to-BVH mapping, and adjacent-cell search enhancements, with BVH now managed under SANDGeoManager for reuse across the SANDGeo/SANDRECO stack. Also fixed BVH search reliability and removed noisy debug prints. In addition, performed an internal ID type consistency refactor from unsigned long to signed long across tracker components to unify representations and better support negative IDs.
7 Commits • 1 Features
Jul 1, 2025July 2025 performance-focused milestone for DUNE/sandreco: Implemented a BVH-based spatial indexing system with complete build, search, and cross-stack integration. BVH library usage includes tree construction, geometry-to-BVH mapping, and adjacent-cell search enhancements, with BVH now managed under SANDGeoManager for reuse across the SANDGeo/SANDRECO stack. Also fixed BVH search reliability and removed noisy debug prints. In addition, performed an internal ID type consistency refactor from unsigned long to signed long across tracker components to unify representations and better support negative IDs.
July 2025
April 2025
4 Commits • 1 Features
Apr 1, 2025April 2025 – DUNE/sandreco: Delivered Noise Matrix Computation tool and Kalman filter enhancements for tracking, with improved innovations evaluation, covariance initialization, and tracklet matching. Added geometry-aware support, digitization alignment, and enhanced testing/visualization. Integration work resolved merge conflicts and cleanup (Cell Adjacency).
April 2025
4 Commits • 1 Features
Apr 1, 2025April 2025 – DUNE/sandreco: Delivered Noise Matrix Computation tool and Kalman filter enhancements for tracking, with improved innovations evaluation, covariance initialization, and tracklet matching. Added geometry-aware support, digitization alignment, and enhanced testing/visualization. Integration work resolved merge conflicts and cleanup (Cell Adjacency).
Activity
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Quality Metrics
Correctness80.0%
Maintainability78.2%
Architecture78.2%
Performance67.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Algorithm OptimizationAlgorithmsBuild SystemC++C++ DevelopmentCode RefactoringData AnalysisData StructuresData TypesGeometry ProcessingKalman FilterParticle PhysicsPerformance OptimizationPhysics SimulationROOT Framework
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