Suppose that you decide to convert the decision stump in figure 1 to a scoring t

Question

Suppose that you decide to convert the decision stump in figure 1 to a scoring tree. Which ranking would best reflect the data in table 1? Explain your answer!

Decision Trees After this week of gruelling exams, you plan to relax with a good book. To decide what book to buy, you have compiled your experiences of books in table 1 on which you will build a decision tree (Genre) z2 (Recommendation) T3 (Part of a series y (Enjoyed the book) r1 Literary Fiction Yes Yes No Literary Fiction No No No Yes Yes Science Fiction No Yes Yes Yes Science Fiction Yes Yes Thriller No Thriller No No No Science Fiction Yes No No Yes Thriller Yes No Table 1: Books you read

Explanation / Answer

Ranking D, i.e., None of the above.

Reason:

1. As per the decision stump, decision taking attribute is y

2. If you look at the weightage of y in table for all the genres, then

Science fiction = 2

Literature = 1

Thriller = 1

Hence, Science fiction should be ranking one, which is not in any of the row.

Hence, none of the above

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