Text vectorization

You'll now transform the desc column in the UFO dataset into tf/idf vectors, since there's likely something we can learn from this field.

Deze oefening maakt deel uit van de cursus

Preprocessing for Machine Learning in Python

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Oefeninstructies

Print out the .head() of the desc column.
Instantiate a TfidfVectorizer() object.
Fit and transform the desc column using vec.
Print out the .shape of the desc_tfidf vector, to take a look at the number of columns this created.

Praktische interactieve oefening

Probeer deze oefening eens door deze voorbeeldcode in te vullen.

# Take a look at the head of the desc field
print(____)

# Instantiate the tfidf vectorizer object
vec = ____

# Fit and transform desc using vec
desc_tfidf = vec.____

# Look at the number of columns and rows
print(____.shape)

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