📚 node [[sparse_feature|sparse feature]]
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📓 garden/KGBicheno/Artificial Intelligence/Introduction to AI/Week 3 - Introduction/Definitions/Sparse_Feature.md by @KGBicheno

sparse feature

Go back to the [[AI Glossary]]

Feature vector whose values are predominately zero or empty. For example, a vector containing a single 1 value and a million 0 values is sparse. As another example, words in a search query could also be a sparse feature—there are many possible words in a given language, but only a few of them occur in a given query.

Contrast with dense feature.
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