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KoreyoshiE/README.md

Han

Data Science Undergraduate

I work on machine learning, research software and data systems. My public projects focus on traceable data processing, out-of-sample evaluation and clear limits on what the results support.

Selected research

  • WDCGG Data Pipeline — Python workflows for acquiring, screening and analysing long-term WDCGG CO₂ and CH₄ observations. The repository includes source manifests, offline tests and frozen result summaries; third-party observations are not redistributed.
  • Shanghai Ozone ML — A 2021–2025 Shanghai ozone study using ERA5 fields, repeated SOM weather typing, leave-one-year-out Random Forest evaluation and out-of-fold SHAP. The public code documents data-access limits and seasonal uncertainty in the weather catalogue.

Selected projects

  • Huawei LLM Agent Router — Competition work on Qwen3 tool selection, direct and two-stage prompting, synthetic examples and evaluation. The current code proposes tool calls; it does not execute them.
  • OmniStream Database Project — PostgreSQL coursework covering relational design, constraints, JSONB, analytical SQL and transaction handling.

Technical focus

Python · SQL/PostgreSQL · pandas/NumPy · scikit-learn · PyTorch · Git

I study Data Science and Big Data Technology at Xi'an Jiaotong-Liverpool University. Research code and project context are linked above.

Pinned Loading

  1. ERA5-SOM-Weather-Typing ERA5-SOM-Weather-Typing Public archive

    Earlier ERA5/SOM weather-typing workflow; current research in shanghai-ozone-ml.

    Python

  2. Huawei-LLM-Agent-Router Huawei-LLM-Agent-Router Public

    Qwen3 prompt baselines for tool selection and evaluation in the Huawei LLM Agent Competition.

    Python

  3. OmniStream-Database-System OmniStream-Database-System Public

    PostgreSQL coursework covering relational schema design, JSONB, analytical SQL and transactions.

    PLpgSQL

  4. shanghai-ozone-ml shanghai-ozone-ml Public

    Machine-learning analysis of Shanghai ozone pollution using ERA5 synoptic fields, SOM weather typing, LOYO Random Forest and SHAP.

    Python

  5. wdcgg-data-pipeline wdcgg-data-pipeline Public

    Reproducible data acquisition, quality control and analysis pipeline for long-term WDCGG CO₂ and CH₄ observations.

    Python