AliceO2Group/O2Physics
Jun 2025 – Jul 2025
2 Months active
Languages Used
C++
Technical Skills
Data AnalysisHigh Energy PhysicsSoftware EngineeringC++ Development
Jan Fiete
PROFILE
Jan Fiete
During a two-month period, Jan implemented targeted improvements in the AliceO2Group/O2Physics and AliceO2Group/AliceO2 repositories, focusing on data analysis and reliability in high energy physics workflows. He enhanced tracking efficiency histograms by increasing species bin granularity and introduced a new track count histogram with flexible statistics range, enabling more precise correlation studies. Using C++ and statistical methods, Jan addressed numerical correctness by fixing weight variance calculations in StepTHn, clarifying Sumw2 usage to reduce inaccuracies. His work improved the robustness of axis handling and data quality, supporting more reliable and maintainable analysis pipelines for physics research and collaboration.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
5Total
Bugs
2
Commits
5
Features
2
Lines of code
18
Activity Months2
Your Network
517 peopleSame Organization
@cern.ch317
Work History
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025 performance snapshot focusing on data-analysis features and numerical correctness across O2Physics and AliceO2. Delivered a new Track Count Histogram with an optional statistics-range restriction, enabling granular data analysis and more precise PWGCF correlations. Fixed a bug in StepTHn weight variance calculation by correcting the initialization of mSumw2 and the sum of squared weights, and by clarifying explicit Sumw2 usage. These changes enhance data quality, reliability of physics analyses, and maintainability across repos.
3 Commits • 1 Features
Jul 1, 2025July 2025 performance snapshot focusing on data-analysis features and numerical correctness across O2Physics and AliceO2. Delivered a new Track Count Histogram with an optional statistics-range restriction, enabling granular data analysis and more precise PWGCF correlations. Fixed a bug in StepTHn weight variance calculation by correcting the initialization of mSumw2 and the sum of squared weights, and by clarifying explicit Sumw2 usage. These changes enhance data quality, reliability of physics analyses, and maintainability across repos.
July 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 - AliceO2Group/O2Physics: Reliability improvements in axis handling and enhanced granularity in tracking efficiency histograms. Delivered concrete changes that increase the robustness of data visualizations and the precision of efficiency measurements, supporting faster analysis and more reliable physics conclusions for June 2025.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 - AliceO2Group/O2Physics: Reliability improvements in axis handling and enhanced granularity in tracking efficiency histograms. Delivered concrete changes that increase the robustness of data visualizations and the precision of efficiency measurements, supporting faster analysis and more reliable physics conclusions for June 2025.
Activity
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Quality Metrics
Correctness88.0%
Maintainability88.0%
Architecture84.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Bug FixingC++C++ DevelopmentData AnalysisHigh Energy PhysicsSoftware DevelopmentSoftware EngineeringStatistical Methods
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
AliceO2Group/AliceO2
Jul 2025 – Jul 2025
1 Month active
Languages Used
C++
Technical Skills
Bug FixingC++Data AnalysisSoftware DevelopmentStatistical Methods