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High-cardinality classification

This story is from 2026-08-22. It is preserved in the archive; the latest stories are on the live feed.

I need to classify tax documents (forms, receipts, etc.) into 150 classes, and likely once we achieve that we’ll want a more granular classification into 800+ classes. How would you approach a problem like this? We tried training a direct NLP classifier (text -> TF-IDF features -> class) and it doe…

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  1. 2026-08-22 10:32 · r/MLQuestions
    High-cardinality classification

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