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Karpathy: Do you know if prof. Ng will cover the issue of sparse data in his lectures? When the number of dimensions is much greater than the number of samples
by zeratul 15y ago
Karpathy: Do you know if prof. Ng will cover the issue of sparse data in his lectures?
When the number of dimensions is much greater than the number of samples and most of your cells in a matrix are equal to zero then most of the ML algorithms don't behave too well. It's very common problem in NLP to have sparse matrices.
- Ecio78 15y agoit seems there will be a specific class on NLP: http://www.nlp-class.org/ http://www.nlp-class.org/