ZOE CHEN
Zoe Chen
Zoe Chen

hey! welcome to my page.
zoec@uchicago.edu

[cs + computational & applied math @ uchicago '30]
works
pieta AI, a poem sentiment classifier: built and deployed a full-stack web app (Next.js, React, Vercel, Supabase) that analyzes and classifies a poem's sentiment. fine-tuned a BERT encoder on 6k+ texts for a 4-class task (no impact/pos/neg/mixed) with Hugging Face's Trainer API, then built the evaluation pipeline and custom metrics. reached ~88.6% accuracy and a 0.83 F1-score. also fine-tuned a second model via QLoRA.
fraud detector on an imbalanced dataset: built a 3-layer neural network in PyTorch to detect fraud across ~284,800 transactions, only 0.17% of them fraudulent. engineered custom features with Pandas/NumPy, trained with BCEWithLogitsLoss + Adam, and evaluated with precision-recall curves rather than accuracy, achieving 80% precision and 75% recall on the fraud class.
netflix user activity data analysis: cleaned a multi-csv dataset with missing values, misaligned indices, and duplicate entries using Pandas, then engineered features for a binary classification model predicting user churn.
previously
awards: united states academic decathlon individual competition two-time national champion; john locke global essay finalist (econ category); national latin exam golds & silvers
internships: climate change research @ both nasa's gsfc and the smithsonian institution NESST summer internships
hs highlights: salutatorian, cum laude society junior inductee, admission ambassador, model un club prez
about
based in: corona del mar, CA
two dogs: yasu (yorkie) and bruiser (shih-tzu)
i love: traveling, pilates, nyt crosswords, and beach bonfires
my game recs: balatro, stardew valley, stray, reigns (the inspo for this page!), and any indie game.
skills: pytorch, tf, pandas, matplotlib, numpy, seaborn, css, html, sql
currently learning: how to implement RAGs, NLPs, and GANs