Learning with Trees — past-year questions
Machine Learning (CSC701) · Semester 7 · Module 2 · Comps
6 past-year questions on Learning with Trees have appeared in Mumbai University CSC701 papers between 2024–2026, 6 times in total. Every question is shown in full below with its marks and repeat count. Model answers require a free account.
Questions asked on Learning with Trees
- 1.
Describe Decision Trees. Explain how trees are constructed using Gini Index along with an example.
10M1× seenlast asked 2026 - 2.
Demonstrate CART method along with an example.
10M1× seenlast asked 2025 - 3.
Explain the concepts of entropy and Gini.
5M1× seenlast asked 2025 - 4.
Explain Gini index along with an example.
5M1× seenlast asked 2024 - 5.
Consider the dataset given below with 3 features Color, Wig, Num. Ears and one output variable Emotion. | Color | G | G | G | B | B | R | R | R | R | |---|---|---|---|---|---|---|---|---|---| | Wig | Y | N | N | N | N | N | N | N | Y | | Num. Ears | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 3 | | Emotion | S | S | S | S | H | H | H | H | H | i) Find root node of decision tree using GINI index. ii) Explain techniques that can be used to handle over fitting in decision trees.
10M1× seenlast asked 2024 - 6.
Suppose we want Gini index to decide whether the car will be stolen or not. The target classification is "car is stolen?" which can be Yes or No, create a decision tree for the given data below. | Car no | Colour | Type | Origin | Stolen? | |---|---|---|---|---| | 1 | Red | Sports | Domestic | Yes | | 2 | Red | Sports | Domestic | No | | 3 | Red | Sports | Domestic | Yes | | 4 | Yellow | Sports | Domestic | No | | 5 | Yellow | Sports | Imported | Yes | | 6 | Yellow | SUV | Imported | No | | 7 | Yellow | SUV | Imported | Yes | | 8 | Yellow | SUV | Domestic | No | | 9 | Red | SUV | Imported | No | | 10 | Red | Sports | Imported | Yes |
10M1× seenlast asked 2024
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