How big does a dataset have to be to fine-tune a transformer model for NER.

Hello, I am doing this university project where I will make a resume parser, I plan on using a bert transformer or another and fine-tune it using the spacy pipeline, the issue is I have a one really mediocre (indian based) database that's not as broad as I would like it to be and that contains only 200 resumes but is labelled, and I have other huggingface databases that are fine but isn't labelled, now I can't possible imagine myself …

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