Tianhui (Hilda) Z.

Fine-tuning Thesis Work - Generative AI for Automating Software Uplifts

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Stockholm, Sweden

Experience

Jan 2024 - Aug 2024
8 months
Stockholm, Sweden

Fine-tuning Thesis Work - Generative AI for Automating Software Uplifts

Ericsson

  • Explored state-of-the-art Generative AI techniques, mining selected GitHub repositories with all versions from the last 3 years.
  • Built and maintained a cleaned dataset of 1M+ for LLM fine-tuning to detect breaking changes from third-party library updates.
  • Fine-tuned CodeT5+ and Code Llama with the QLoRA method, achieving an F1-score above 95%, highlighting GenAI’s potential in software upgrades.
Nov 2023 - Dec 2023
2 months
Stockholm, Sweden

Reinforcement Learning – Lunar Lander

KTH Royal Institute of Technology

  • Implemented Deep Q-Learning with a replay buffer and target networks.
  • Optimized hyperparameters (discount factor, buffer size, learning rate), improving average reward to 200+ after ~350 episodes.
  • Evaluated training curves, showing DQN outperforming the random agent.
Feb 2023 - May 2023
4 months
Stockholm, Sweden

Parallel Sobel Filtering for Fast Image Processing

KTH Royal Institute of Technology

  • Implemented image preprocessing and matrix transformation in Python.
  • Designed and parallelized the Sobel filter in C with MPI on Dardel (the top supercomputer), employing red-black communication to avoid deadlocks.
  • Achieved strong parallel efficiency and near-linear speed-up up to 128 processors on 150k+ pixel images.

Summary

Applied & Computational Mathematics graduate with expertise in Python, Machine Learning, and Generative AI. Experienced in fine-tuning LLMs and building large-scale datasets. Skilled in data preprocessing, feature engineering, and evaluation, with hands-on experience in ML pipelines and real-world projects.

Skills

  • Programming: Python (Pandas, Numpy), Sql (Bigquery, Mysql), R, Matlab

  • Ml Techniques: Fine-tuning, Hyperparameter Optimization, Model Evaluation

  • Tools & Platforms: Git, Jupyter, Google Colab, Fastapi, Databricks, Kubernetes

  • Visualization: Tableau, Matplotlib

  • Adaptability

  • Communication

  • Persistence

  • Teamwork

Languages

English
Advanced
Chinese
Advanced
Swedish
Intermediate

Education

Aug 2022 - Aug 2024

KTH Royal Institute of Technology

Master of Applied and Computational Mathematics · Applied and Computational Mathematics · Stockholm, Sweden

Aug 2018 - Jun 2022

University of Science and Technology Beijing

Bachelor of Mathematics and Applied Mathematics · Mathematics and Applied Mathematics · Beijing, China

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