Hi, I'm James Yap.

contact [at: @] jamesyap [dot: .] org

I am a Polyglot software developer, a Vim Motions addict, and a Linux / FOSS aficionado. I make videos on web development technologies. My interests lie in the ethereal fields of 💻 Computer Science, ⚛ Physics, ➕ Mathematics, and 📡 Science Communication.

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Portfolio.

CORAL on non-linear multiphoton microscopy

Automated classification of intraductal carcinoma of the prostate (IDC-P) using deep learning on non-linear multiphoton microscopy images. Explored transfer learning and CORAL (Consistent Rank Logits) to improve classification accuracy, with attention heatmaps highlighting the image regions most influential to the model's decisions.

ouster-LiDAR-zone-occlusion-2d-webgl

A modern WebGL2-based viewer for point cloud data that applies polar unwrap on 3D LiDAR point clouds into 2D cylindrical projections with support for occlusion and Z-buffer depth testing.

ReLU, done beautifully

An interactive slide deck that dives into the beautiful mathematics behind ReLU, in 3D space. Built using WebGL and Three.js.

Notes.

Conditional IndependenceUpdated Oct 22, 2026
Maximum Likelihood and Cross-EntropyUpdated Oct 22, 2026
A mathematical textbook connecting likelihood, entropy, KL divergence, statistical estimation, and probabilistic machine learning, with worked examples and solved exercises.
Bayesian Inference: Alice’s Coin, Likelihood, MLE, and MAPUpdated Oct 21, 2026
One hidden coin connects conditional independence, Bayesian updating, prediction, Naive Bayes, and maximum-likelihood estimation.

Timeline.

2026

May 2026 - August 2026

Intern Engineer

Shopify Inc.

Shopify Inc. is a Canadian multinational e-commerce company headquartered in Ottawa, Ontario that operates a platform for retail point-of-sale systems.

2025

January 2025 - April 2025

Web Developer - Co-op/Intern

Nokia Corporation

Nokia Corporation is a Finnish multinational telecommunications, information technology, and consumer electronics corporation, originally established as a pulp mill in 1865.

2024

September 2024 - December 2024

Software Development Engineer

Ouster Inc

Ouster, Inc. is an American lidar technology company headquartered in San Francisco, California. It builds high-resolution, digital 3D lidar sensors for use in autonomous vehicles, industrial, robotics, drones, mapping, defense, and security systems.