Jimin Yu

Applied AI Research/Data Science intern @ WillowTree (TELUS Digital), Student researcher at NC State University, and ex-data/full stack engineering intern @ Fidelity Investments

Role
Applied Ai Research Intern at Willowtree
Location
Raleigh, NC, US
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Jimin Yu

I am a student at North Carolina State University pursuing a Bachelor\'s and Master\'s…

Experience

  1. Applied Ai Research Intern

    Willowtree

    May 2025 — Present · Durham, NC, US

    Conducted active research with GRPO, DPO, and SFT using Hugging Face’s TRL library to fine-tune a standard LLM for automated red teaming tasks- Performed extensive exploratory data analysis on training datasets for DPO, focusing on measuring the diversity of the dataset and clustering text based on semantic similarity- Designed and implemented an evaluation pipeline for testing the usability of attack models against a benchmark- Experimented with zero-shot, one-shot, and few-shot prompting techniques for using LLM as a judge- Built custom DNN’s to classify multilingual prompt and generation alignment in LLM’s- Delivered an LLM that improved benchmark scores by over 430% than the baseline

Education

  • North Carolina State University

    Bachelor's degree

    2021 — 2025

  • North Carolina State University

    Master's degree

    2025 — 2026

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Jimin Yu — Applied Ai Research Intern at Willowtree in Raleigh, NC, US | Unifers