Ka Ming Fung
Data Scientist · notes on forecasting, geospatial analysis & Python tooling
I'm Victor — a data scientist writing up the things I learn along the way: time series forecasting, geospatial analysis, and the Python tooling that makes it all less painful. Before this, I did climate & atmospheric science research (Ph.D. @ CUHK, postdoc @ MIT) — that work now lives on my academic archive.
Topics
Recent Posts
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🔬 Wave Theory 101: From Ripples and Strings to Light and Sound
A comprehensive, visual foundation in classical wave mechanics — exploring wave equations, transverse vs longitudinal motion, interference, standing wave...
Read article · Aug 2026
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📈 The Case of the Sneaky Comma: Why Inlay Type Hints Are Your IDE's Greatest Superpower
A frustrating debugging story that reveals how Python type hinting — and especially IDE Inlay Type Hints — catches subtle syntax bugs and type mutations before...
Read article · Aug 2026
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🔬 Why Triangles? Stress, Topology & 3D-Printed Cast Geometry
A decade after my first funded grant on 3D-printed orthopedic casts, we explore finite element stress mechanics, conformal surface tiling, and interactive...
Read article · Aug 2026
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📈 Setting up Colorbar Colors Using R and ggplot2
How to configure colorbar colors and scales in ggplot2 for publication-quality plots.
Read article · Aug 2026
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📈 Shadow Detection via HSV Chromaticity & Otsu Thresholding
An automated computer vision pipeline using HSV color space decoupling, Otsu thresholding, and morphological filtering to segment cast shadows with scikit-image.
Read article · Aug 2026
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🌍 Regional Analysis Using R
How to append geographic information to gridded data for regional analysis in R.
Read article · Aug 2026
Highlights
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📈 Forecast Series
Feature engineering, ensemble models, and SHAP explainability for time series forecasting.
1 · Feature Engineering · 2 · Ensemble Models · 3 · SHAP Explainability
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🌎 Plotting US PM2.5
Interactive air quality maps with geopandas and folium.
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🌤️ Finding Shadows with scikit-image
A computer-vision approach to detecting shadows in satellite imagery.
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🌡️ Detrending HK Temperature
Time series detrending with pandas and scipy.
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🐍 Harness Engineering
Notes on building agentic coding harnesses.
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💰 Investment Comparator
A Streamlit app comparing total return with dividend reinvestment across tickers.