Junseong Lee

Projects

A plain index of software and technical work, separate from the XP desktop UI, so it remains easy to read and easy to index.

episteme

Live SiteOpen Repository

A cognitive-governance kernel that makes AI agents show their work before they act. Before any high-impact action (git push, deploy, migration), a deterministic hook requires the agent to commit its reasoning to disk — knowns, unknowns, assumptions, and a falsifiable disconfirmation — and refuses to proceed until the artifact is real. Verified lessons become hash-chained, context-scoped protocols that resurface at the next matching decision, so the agent gets sharper on your codebase over time. Ships as a Claude Code plugin and a Python kernel with a vendor-neutral adapter layer.

PythonClaude Code plugin (hooks / skills / agents)TypeScriptNext.jsVercel

Gaze-VQA: Multi-View Spatial Reasoning Benchmark

A benchmark probing how well vision-language models understand human gaze, across four tasks: gaze target recognition, relative orientation reasoning, cross-view visibility estimation, and viewpoint-based accessibility. Built at MONET Lab (UIUC) from the MVGT dataset, with an evaluation harness that combines standard text metrics with an LLM-as-a-judge scorer so semantic correctness counts for more than exact match.

PythonVision-Language ModelsBenchmark designLLM-as-a-Judge

Web Application for 2nd Infantry Division, 8th U.S. Army

Open Repository

An event-management web application built and deployed for my battalion, processing 800+ participants across 32 events. It cut manual reconciliation by 75% and data-entry errors by 95%, and earned an Army Commendation Medal.

Python (Flask, SMTP, pandas)HTML, CSS, JavaScriptOAuth2AWS EC2NginxGunicorn

Heart Disease Prediction using UCI Medical Data

Open Repository

Built ML models to predict heart disease. Learned about non-parametric approaches and their tradeoffs.

Pythonpandasnumpymatplotlibscikit-learnStatistical Modeling

Facial Recognition using PCA

Open Repository

Learned how facial recognition systems work through Principal Component Analysis in Linear Algebra.

Dimensionality ReductionLinear AlgebraStatistical Modeling

S&P Index Prediction using Macroeconomic Indicators

Open Repository

First project to understand statistical modeling, predicting the S&P index from 15 macroeconomic indicators extracted from TradingView.

Time Series AnalysisLinear RegressionAugmented Dickey-Fuller TestGranger Causality Test

Will You Be My Valentine?

Open Repository

Made a website for my partner with Bugcat-Capoo GIFs.

HTML, CSS, JavaScript

Main site experience: https://junjslee.github.io