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Machine Learning Techniques Unit 3 – Decision Tree Learning and Instance-Based Learning: important questions for AKTU

Unit 3 (Decision Tree Learning and Instance-Based Learning) questions that AKTU repeats most often. This unit carries about 25 marks per paper. Start with the repeated questions, then the most asked topics.

Most repeated Unit 3 questions

  • Explain the ID3 algorithm for Decision Tree learning. (7 marks, 2026, ID-3 Algorithm) – also asked in 2024, 2025
  • Illustrate the steps of the ID3 algorithm, including how it selects attributes and constructs the tree. (7 marks, 2025, ID-3 Algorithm) – also asked in 2024, 2026
  • Provide a detailed explanation of the ID3 algorithm used for constructing decision trees. Discuss the key steps involved in the iterative process of feature selection and node splitting. (10 marks, 2024, ID-3 Algorithm) – also asked in 2025, 2026

Most important Unit 3 topic

  • Issues in Decision Tree Learning (Unit 3: Decision Tree Learning and Instance-Based Learning) – asked 7 times in 2021, 2022, 2023, 2025, 2026

Most asked Unit 3 topics

  • Issues in Decision Tree Learning – asked 7 times
  • k-Nearest Neighbour Learning – asked 6 times
  • ID-3 Algorithm – asked 4 times

More Unit 3 previous year questions

  • Explain the concept of overfitting in Decision Trees? (2 marks, 2026, Issues in Decision Tree Learning)
  • What is Entropy in Decision Tree Learning? (2 marks, 2026, Entropy and Information Theory)
  • Define k-Nearest Neighbor algorithm. (2 marks, 2026, k-Nearest Neighbour Learning)
  • Discuss Information Gain and its role in Decision Tree Learning. (7 marks, 2026, Information Gain)
  • Explain k-Nearest Neighbour (k-NN) algorithm and its limitations. (7 marks, 2026, k-Nearest Neighbour Learning)

Unit 3 syllabus topics

  • Decision Tree Learning Algorithm
  • Inductive Bias
  • Inductive Inference with Decision Trees
  • Entropy and Information Theory
  • Information Gain
  • ID-3 Algorithm
  • Issues in Decision Tree Learning
  • k-Nearest Neighbour Learning
  • Locally Weighted Regression
  • Radial Basis Function Networks
  • Case-Based Learning