The GATE Grind

GATE Machine Learning: Supervised learning: classification – Previous Year Questions

12 GATE previous year questions on Supervised learning: classification (Machine Learning, Data Science and Artificial Intelligence) with answers and explanations, from every paper.

  1. GATE 2024 DA Q17 (1 mark, Multiple choice) – Consider the dataset with six datapoints: \(x 1, y 1), (x 2, y 2), , (x 6, y 6)\, where x 1 = bmatrix1\\0bmatrix, x 2 = bmatrix0\\1bmatrix, x 3 =…
  2. GATE 2024 DA Q18 (1 mark, Multiple choice) – Match the items in Column 1 with the items in Column 2 in the following table: Column 1 Column 2 --- --- (p) Principal Component Analysis (i)…
  3. GATE 2024 DA Q20 (1 mark, Multiple choice) – Given a dataset with K binary-valued attributes (where K > 2) for a two-class classification task, the number of parameters to be estimated for…
  4. GATE 2024 DA Q53 (2 marks, Multiple select) – Consider the following figures representing datasets consisting of two-dimensional features with two classes denoted by circles and squares. [Figure:…
  5. GATE 2024 DA Q62 (2 marks, Numerical answer) – Details of ten international cricket games between two teams "Green" and "Blue" are given in Table C. This table consists of matches played on…
  6. GATE 2024 DA Q63 (2 marks, Numerical answer) – Given the two-dimensional dataset consisting of 5 data points from two classes (circles and squares) and assume that the Euclidean distance is used to…
  7. GATE 2025 DA Q22 (1 mark, Multiple choice) – Consider designing a linear classifier y = sign(f(x; w, b)), f(x; w, b) = w x + b on a dataset D = \(x 1, y 1), (x 2, y 2), , (x N, y N)\, x i Rd, y i…
  8. GATE 2025 DA Q35 (1 mark, Numerical answer) – The naive Bayes classifier is used to solve a two-class classification problem with class-labels y 1, y 2. Suppose the prior probabilities are P(y 1)…
  9. GATE 2025 DA Q53 (2 marks, Multiple select) – Consider designing a linear binary classifier f(x) = sign(w x + b), x R2 on the following training data: Class-1: pmatrix 2 \\ 0 pmatrix, pmatrix 0 \\…
  10. GATE 2025 DA Q55 (2 marks, Multiple select) – Consider a two-class problem in Rd with class labels red and green. Let red and green be the means of the two classes. Given test sample x Rd, a…
  11. GATE 2026 DA Q23 (1 mark, Multiple select) – In the following table, the Task column lists a few tasks related to machine learning. The Algorithm column lists a few algorithms. Each entry 't'…
  12. GATE 2026 DA Q47 (2 marks, Multiple select) – Consider that 20 stories of Author X and 10 stories of Author Y were kept together without mentioning the names of the authors. A classifier was then…