NPTEL Natural Language Processing Week 3 Assignment Answers 2025

NPTEL Natural Language Processing Week 3 Assignment Answers 2025

1. Which of the following words contains both derivational and inflectional suffixes?

• responsibilities
• happiness
• quicker
• enjoyment

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2. Let’s assume the probability of flipping heads two times in a row with a fair coin is q. Consider a sentence consisting of M random binary digits (0s and 1s). A model assigns probability to each digit in the sentence using the probability q. What is the perplexity of the sentence?

1. 2
2. 4
3. 8
4. 16

Answer :- 

3. Assume that “x” represents the input and “y” represents the tag/label. Which of the
following mappings are correct?

1. Generative Models – lear Joint Probability p(x, y)
2. Discriminative Models – learn Joint Probability p(x, y)
3. Generative Models – learn Posterior Probability p(y | x) directly
4. Discriminative Models – learn Posterior Probability p(y | x) directly

Answer :- 

4.

Answer :- 

5. What will be the value of P(is| language processing) using Kneser-Ney backoff technique
and choose the correct answer below.. Please follow the paragraph in Question.

1. 0.5
2. 0.6
3. 0.8
4. 0.7

Answer :- 

6. What is the value of P(can| language processing)? Please follow the paragraph in
Question 5

1. 0.1
2. 0.02
3. 0.3
4. 0.2

Answer :- 

7.

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