Subject
Computer Science
Topic
Artificial Intelligence
In the figure, a split changes parent counts 6,4 into left 4,1 and right 2,3. What is information gain rounded to three decimals?
In the figure, a split changes parent counts 6,4 into left 4,1 and right 2,3. What is information gain rounded to three decimals?
a)
0.125b)
0.225c)
0.025d)
0.875Explanation
Parent entropy (6, 4) ≈ 0.971. Each child holds half the data: left (4, 1) ≈ 0.722 and right (2, 3) ≈ 0.971, average ≈ 0.846. Gain ≈ 0.971 − 0.846 = 0.125.Related questions
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