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.
This exercise is part of the course
Preprocessing for Machine Learning in Python
Exercise instructions
- Print out the
.head()
of thedesc
column. - Instantiate a
TfidfVectorizer()
object. - Fit and transform the
desc
column usingvec
. - Print out the
.shape
of thedesc_tfidf
vector, to take a look at the number of columns this created.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# 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)