Matrix factorization
Matrix G is provided here as a Pandas dataframe. View it to understand what it looks like. Look at the possible factor matrices H, I, and J (also Pandas dataframes), and determine which two matrices will produce the matrix G when multiplied together.
Cet exercice fait partie du cours
Building Recommendation Engines with PySpark
Instructions
- Take a look at matrix
Gusing theprintcommand - Take a look at the matrices
H,I, andJand determine which pair of those matrices will produceGwhen multiplied together. - Input your answer into the
np.matmul()code provided.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Take a look at Matrix G using the following print function
print("Matrix G:")
print(____)
# Take a look at the matrices H, I, and J and determine which pair of those matrices will produce G when multiplied together.
print("Matrix H:")
print(____)
print("Matrix I:")
print(____)
print("Matrix J:")
print(____)
# Multiply the two matrices that are factors of the matrix G
prod = np.matmul(____, ____)
print(G == prod)