Usually you don't require a proposal for conferences. But I would avoid exposing your data until after it is published in HI journals :)

Write an abstract instead of a proposal

I think it depends on the guidelines that the conference provides. Most of the conferences that I saw their calls asked for an abstract of the research paper.

Here are the below points help to answer your question:

• Write a clear and succinct abstract (usually 200-300 words).
• Include the purpose, methodology, key findings, and implications of your research.
• Clearly state the significance of your work.

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