How do you know if you have a sparse matrix? Visualize it! Many areas in machine learning commonly employ the use of a sparse matrix.
Many areas in machine learning commonly employ the use of a sparse matrix. If you have ever vectorized a NLP dictionary using One-Hot-Encoding, CountVectorizing or TfidVectorizing you know what I’m pertaining to.
In simplest terms, a sparse matrix is one containing many zeros and a dense matrix which does not.
import scipy.sparse as sparse import matplotlib.pyplot as plt %matplotlib inline ## adjust the density parameter sparse = sparse.random(10,10, density=0.015) sparse.toarray()
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