Chengyu Yu
M.S. student in Computer Science at Carnegie Mellon University
- Role
- Software Engineer at Privacy-Tech-Lab
- Location
- Pittsburgh, PA, US
- LinkedIn followers
- 500 followers
Experience
Software Engineer
Jun 2024 — Present · Middletown, CT, US
Designed and trained 10+ transformer-based TinyBERT models for real-time privacy analysis of network traffic, achieving 96% F1 score in detecting HTTP snippet that track user’s location. Fine-tuned hyperparameters using Ray Tune and Weights & Biases; developed scripts to convert models from PyTorch to TensorFlow.js to enable browser compatibility- Conducted performance testing on websites, creating automated scripts for generating standardized test lists incorporating diverse tracking technologies. Manually curated 200+ websites’ ground truth by analyzing network traffic data. Tested the extension’s performance using cloud virtual machines in 10+ countries- Improved extension’s classification accuracy by 40%+ by standardized escape sequences and optimizing tokenizer input pipelines for HTTP message preprocessing.
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