OpenImagingLab / OpenImagingLab/FlashVSR

Model fine-tuning with lora

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Dominant language
Python
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Description

Thank you for your amazing work. However, we have identified some limitations in certain high-frequency specific scenarios. Therefore, we attempted further fine-tuning (LoRA, scenario-specific datasets) on the basis of your model. Yet, we also found that the top-k Mask of Block-Sparse-Attention used in the inference code has no gradients. We would like to consult you: how did you implement this in Step 2 of the training?

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  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the inference implementation of the top-k Mask of Block-Sparse-Attention and the Step 2 training path. Compare how gradients are handled in those paths for LoRA fine-tuning. The issue does not define a concrete completion condition, so maintainer clarification is needed.

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Assessment

Tech stack
python
Domain
machine-learning
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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