5.2 Turning Tweets into Knowledge: An Introduction to Text Analytics

Quick Question

For each of the following questions, pick the preprocessing task that we discussed in the previous video that would change the sentence "Data is useful AND powerful!" to the new sentence listed in the question.

New sentence: Data useful powerful!

Exercise 1

New sentence: data is useful and powerful

Exercise 2

New sentence: Data is use AND power!

Exercise 3

Explanation

The first new sentence has the stop words "is" and "and" removed. The second new sentence has the irregularities removed (no capital letters or punctuation). The third new sentence has the words stemmed - the "ful" is removed from "useful" and "powerful".