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CSE443: Bioinformatics · 2025

BioAlign-QLoRA: Biomedical Knowledge Graph Alignment

Curated 68,444+ gene-disease relationships and adapted Llama-, Mistral-, and Phi-style models with QLoRA to study changes in biomedical embedding alignment.

[ EVD ]

Engineering evidence

My contribution
Lead researcher · Data curation, QLoRA experiments, and evaluation
Outcome
Custom embedding-space separation metric and comparative model study
Decision record 01
Used parameter-efficient QLoRA to compare multiple model families within constrained research compute.
Knowledge Graph Separation methodology visualization
[ KEY ]

Technical highlights

  1. 01

    Introduced a novel 'Knowledge Graph Separation' score quantifying geometric alignment between LLM embedding space and biological knowledge structures.

  2. 02

    Achieved 83.8% accuracy with Mistral model, outperforming the pre-trained BioMistral-7B expert.

[ STK ]

Stack

  • Python
  • PyTorch
  • QLoRA
  • Llama-3
  • Mistral-7B
  • Knowledge Graphs