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Hannah Chen

PROFILE

Hannah Chen

Developed foundational background analysis tools for the CMSAnalysis repository, focusing on delivering new scripts for histogram processing, background estimation, and data handling using C++. The work included a targeted codebase refactor to improve include path readability for FitFunction.hh, supporting the integration of these new tools. Emphasis was placed on code quality and maintainability, with essential cleanup that contributed minor stability improvements. No major bugs were addressed during this period, but the changes established a more reliable analysis framework. This effort laid the groundwork for future enhancements in background modeling and streamlined the integration of additional features within the project.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
1
Lines of code
581,966
Activity Months1

Work History

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026: Delivered foundational background analysis tooling for CMSAnalysis (IMSA-CMS/CMSAnalysis). Implemented scripts for histogram processing, background estimation, and data handling, with a focused codebase refactor to improve include path readability for FitFunction.hh to support the new tools. Performed essential cleanup to enhance maintainability. No critical bugs were addressed this month; minor stability improvements came from the cleanup. Overall, the work strengthens analysis reliability, reduces future maintenance risk, and accelerates upcoming feature integration.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++

Technical Skills

C++ developmentC++ programmingCode refactoringbackground estimationdata analysishistogram processing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

IMSA-CMS/CMSAnalysis

Apr 2026 Apr 2026
1 Month active

Languages Used

C++

Technical Skills

C++ developmentC++ programmingCode refactoringbackground estimationdata analysishistogram processing