Semantic Segmentation
Seek to answer what's in the image, and where in the image is the class located
- Model/Algorithm used: pascal voc, ade20k
About Me
I'm a Data Scientist with expertise in machine learning and deep learning applications. My work spans across various domains including computer vision, natural language processing, and time series analysis.
Currently based in Seoul, South Korea, I specialize in developing and implementing data-driven solutions that help businesses make better decisions.
Experience
Big Data Research & Analysis
2021 - Present
ZIGBANG
Seoul, Republic of Korea
- Conducted research and applied ML/DL algorithms and advanced statistical methods to analyze real estate housing market to provide insights and improve decision making system.
- Prototyped, developed, and implemented research analysis on B2B web service to enable consumers in construction and financial industry to intuitively understand real estate markets.
- Developed ETL scripts in Python to load data from multiple sources and to clean and transform data for analysis.
- Developed interactive visualized dashboards to enable data exploration by clients.
- Python, MySQL, Presto, Kubeflow, Airflow, Git, API, Tableau, AppScript, Slackbot.
Senior Data Analyst
2019 - 2021
Welcome Digital Saving Bank
Seoul, Republic of Korea
- Developed alternative credit scoring system and oversaw model validation.
- Developed and implemented dashboards to support business decisions.
- Python, Oracle SQL, Tableau, Air Bridge.
Data Analyst Consultant
2018 - 2019
EY
London, U.K.
- Built solutions to extract and transform complex data sets to validate data and check information accuracy and integrity.
- Delivered tax advisory report for private equity executives and partners.
- Python, VBA, Power Pivot, Power Query, HTML, CSS.
Business Intelligence Intern
2018
Meero
Paris, France
- Implemented regression analysis on time series data and client segmentation analysis.
- Extracted and transformed raw data stored in SQL into actionable insights and business strategies using R.
- MySQL, Tableau, VBA
Data Specialist
2017
Mini Pharmacy Enterprise Inc.
L.A., C.A., U.S.A.
- Designed dashboards using QlikSense and PowerBI and eased the presentation of key business metrics.
- Created VBA modules to automate procedure of tracking and calculating balance status of account receivables.
- QlikView, QlikSense, PowerBI, VBA
Education
École Polytechnique
Masters 1 (completion of 1st year)
Economics, Data Analytics & Corporate Finance
Palaiseau, France
September 2017 - September 2018
University of California, Berkeley
B.A.
Economics, Sociology
Dean's Honors list for Fall semester 2013
Berkeley, C.A., U.S.A.
August 2010 - May 2014
Van Nuys Senior High
Math & Science magnet
Honors list
Van Nuys, C.A., U.S.A.
August 2007 - June 2010
Featured Projects
Machine Learning / Deep Learning Applications
Object Detection
Detect and classify objects using YOLO v3
- DL framework: OpenCV
- Model/Algorithm used: YOLO v3
Time Series Analysis
Stock price prediction and analysis using various models
- LSTM Keras
- Prophet
- Seasonal decomposition
Bankruptcy Prediction
Predict bankruptcies using machine learning models
- Models: Random Forest, GradientBoost, XGBoost, LightGBM
- Feature selection: RFECV
- Model interpretation: SHAP, Morris Sensitivity
Exploratory Data Analysis / Visualization
Uber Pickup Visualization
Korean Text Analysis
Web scraping and analysis of Google Play Store reviews
Project Demos
Technical Skills
Programming Languages
- Python
- Java
- JavaScript
- R
- HTML/CSS
Query Languages
- MySQL
- Oracle SQL
- Hive
- Presto
- Power Query
Machine Learning
- TensorFlow
- PyTorch
- Scikit-learn
- Computer Vision
- NLP
- Time Series Analysis
Big Data & Cloud
- AWS
- Docker
- Kubernetes
- Airflow
- Spark
- API Integration
BI & Visualization
- Tableau
- Power BI
- QlikView
- QlikSense
- Google Analytics
Other Tools
- Git
- VBA
- Excel
- Jupyter
- AppScript
- Slackbot
Certificates
SQL Developer
Completion ID: SQLD-044001484
Google Analytics Individual Qualification
Completion ID: 106382292
Object-oriented programming with Java
Certificate of Completion: An introduction
Completed in March 2019