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Summary of Gradient Dynamics For Low-rank Fine-tuning Beyond Kernels, by Arif Kerem Dayi et al.


Gradient dynamics for low-rank fine-tuning beyond kernels

by Arif Kerem Dayi, Sitan Chen

First submitted to arxiv on: 23 Nov 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: Statistics Theory (math.ST); Machine Learning (stat.ML)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
This research paper investigates LoRA, a popular method for fine-tuning foundation models with minimal computational requirements and memory usage. LoRA modifies the pre-trained model’s weights by adding a low-rank perturbation, which is trained on supervised data for a specific task. Although LoRA has shown promising results, its underlying mathematical principles are still not well understood. The paper aims to shed light on what learning mechanisms drive gradient descent to converge to useful low-rank perturbations.
Low GrooveSquid.com (original content) Low Difficulty Summary
This study looks into LoRA, a way to make pre-trained models better for specific tasks using just a little extra computing power and memory. LoRA adds small changes to the original model’s weights, which are trained on labeled data for that task. Despite being successful, it’s unclear why this works mathematically. The researchers want to figure out what makes LoRA good at finding useful changes.

Keywords

» Artificial intelligence  » Fine tuning  » Gradient descent  » Lora  » Supervised