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Jiyoon-B

PROFILE

Jiyoon-b

Jiyoon Kim developed robust data analysis and preprocessing solutions in the HUFS-DAT/2024-2_Seminar repository, focusing on reproducibility and analytical depth. They built a PCA-based Jupyter Notebook for Fashion MNIST, applying multi-component dimensionality reduction and visualizing results with Matplotlib and Seaborn to enhance interpretability. Kim also improved reliability in baseball analytics notebooks by correcting file paths and standardizing preprocessing for metrics like woba. In December, they delivered an end-to-end data preparation pipeline for the model1 dataset, implementing missing value checks, correlation analysis, and scaling using Pandas and Scikit-learn, which streamlined data quality and accelerated experimental workflows.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
5,394
Activity Months2

Work History

December 2024

1 Commits • 1 Features

Dec 1, 2024

Month: 2024-12 | Repository: HUFS-DAT/2024-2_Seminar | Focus: Feature delivery in data preprocessing notebook for model1 dataset with end-to-end data prep pipeline.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024 performance highlights focused on delivering a reproducible, analytics-ready environment in HUFS-DAT/2024-2_Seminar. Key features delivered a PCA-based image data notebook for Fashion MNIST with multi-component PCA, variance analysis, reconstruction error, and label-colored 2D visualization, enabling deeper dimensionality reduction experiments. Major fixes addressed notebook reliability in Baseball Analytics by correcting file paths, execution counts, and preprocessing/model parameters for metrics like woba and exit_velocity_avg. Collectively, these efforts improved data exploration capabilities, reliability, and onboarding for analysts, with tangible business value in faster insights and more robust analytics pipelines.

Activity

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Quality Metrics

Correctness66.6%
Maintainability66.6%
Architecture66.6%
Performance66.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

Jupyter NotebookPython

Technical Skills

Data AnalysisData PreprocessingData VisualizationDimensionality ReductionMachine LearningMatplotlibPCAPandasPythonScikit-learnSeaborn

Repositories Contributed To

1 repo

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

HUFS-DAT/2024-2_Seminar

Nov 2024 Dec 2024
2 Months active

Languages Used

Jupyter NotebookPython

Technical Skills

Data AnalysisData PreprocessingData VisualizationDimensionality ReductionMachine LearningMatplotlib

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