Wongyu Jeon
Junior BI Analyst | Data cleaning, analysis & visualization
Who really took advantage on US-China trade war?
Data from June 2024 to May 2025 suggests:
- CPI, PPI, Employment data has not shifted dramatically for both countries, after levying tariff to each other.
- China had enormous amount of trade surplus against US; it slightly declined...
😊 True Factors of Happiness (Tableau • Data Analysis)
A interactive project exploring what truly drives happiness, contrasting common beliefs with scientifically supported findings.
Key work:
- Integrated data from GDP, ESS11 survey, and personality datasets (extraversion, social...
📊 AdventureWorks KPI Dashboard (SQL Server • Tableau BI Dashboard)
A professional KPI dashboard built on the AdventureWorks database, designed to mimic real-world BI workflows.
Key work:
- Wrote all SQL extract queries for: Revenue, Profit, Orders, KPIs, Inventory, HR metrics.
-...
🏀 NBA Salary Prediction (Python • ML/DL)
A full end-to-end data science project predicting next-season NBA player salaries using machine learning and deep learning.
Key work:
- Collected and cleaned 2010–2025 NBA traditional stats and salary data.
- Built linear regression, random...
