📚 node [[sparsity|sparsity]]
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📓 garden/KGBicheno/Artificial Intelligence/Introduction to AI/Week 3 - Introduction/Definitions/Sparsity.md by @KGBicheno

sparsity

Go back to the [[AI Glossary]]

The number of elements set to zero (or null) in a vector or matrix divided by the total number of entries in that vector or matrix. For example, consider a 10x10 matrix in which 98 cells contain zero. The calculation of sparsity is as follows:

The equation for sparcity

Feature sparsity refers to the sparsity of a feature vector; model sparsity refers to the sparsity of the model weights.
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