✦ Jack Yu Dev
Projects About Me Contacts
in

CMU QPA Plus

FastAPI, Python, JavaScript, HTML/CSS

Full-stack academic metrics system that formalizes CMU's official QPA/GPA policy into a deterministic computation engine. Features FastAPI backend with Pydantic validation and responsive JavaScript frontend with real-time updates.

Sept 2025 – Present

CarbonTrack Org

Co-Founder & CEO

Led end-to-end product and technical development of CarbonTrackApp, a research-backed system converting eco-friendly actions into gamified carbon credits. Built and managed a team of 21 students, scaling to 145 active users across 12+ partner schools globally.

Nov 2023 – Present

Occupancy Detection via Statistical Classification

R, Statistical Learning, Binary Classification, Decision Trees

Framed room occupancy prediction as a binary classification problem using environmental sensor data. Implemented and compared LDA, QDA, logistic regression, and classification trees, achieving 98% accuracy with CO₂ as the most informative feature.

Nov 2025

Statistical Modeling of Article Virality

R, Regression Modeling, Feature Analysis

Modeled social media article shares using Mashable data, framing content virality as a regression problem. Constructed and validated a multiple linear regression model with log-transformed response, uncovering statistically significant weekday effects.

Oct 2025

EchoMinder

Python, LLM Agents, Memory Systems, Prompt Engineering

Hierarchical memory system for LLM agents spanning short-, mid-, and long-term layers to enable persistent cross-session contextual awareness. Engineered automated summarization and memory retrieval pipelines for context-aware prompt construction.

Oct 2025

Pillulu

Python, Flask, LLM APIs, AWS, Docker, REST APIs

AI-powered medication management system to assist users in identifying medications, understanding usage instructions, and managing daily intake. Architected scalable backend on AWS using Flask, Docker, Nginx, and Gunicorn with HTTPS-enabled service delivery.

June 2025 – Aug 2025

@2026 Jack Yu
in