Portrait of Hong Yao Koh

Data Science • AI

Building practical tools

I’m Hong Yao. I build practical ML-focused projects and enjoy creating visual stories through photography and basketball edits.

Technical Projects

Things I’ve been building

Explore the skjson Toolkit

Learn to simplify your predictive analytics workflow, and how to easily bridge your Python Sci-Kit Learn models with JavaScript application.

View skjson Toolkit

skjson Latest

Export scikit-learn models to JSON format. Supports numerous models, preprocessing, Joblib, and ONNX conversions natively in Python.

Python Machine Learning Scikit-Learn

skjson-js Latest

Universal inference library to parse JSON models and predict efficiently directly in JS with 100% mathematical accuracy and zero dependencies.

JavaScript Node.js Cross-Language

SGHumidity

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Machine learning pipeline for Singapore humidity prediction, including feature engineering, model comparison, and visualized outputs.

Python Machine Learning Data Processing Ensemble learning

EZtrip

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Collaborative trip-planning web app with user auth, shared itineraries, voting, and invite workflows for group decision making.

Flask Supabase Google OAuth Google Maps API Full Stack

h4g2025 (SBC-PA)

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Team scheduling platform with task planning, invitations, notifications, and chat, built with separate frontend and backend apps.

React Flask API Scheduling Chat System Hackathon Build

Burn-Captions

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Personal subtitle automation tool that generates captions with Whisper and burns them into video output using a Dockerized workflow.

Python Whisper FFmpeg Docker Video Processing