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Previous Year Question Paper

AL504 (B) - Natural Language Processing

November 2023•AIML•SEMESTER-5
November 2023
Max Marks: 70
Duration: 3 Hours
Instructions:

• Attempt any five questions.

• All questions carry equal marks.

Q.1
a)Unit 1

Describe the role of regular expressions in NLP and provide examples of how they are used in language processing tasks?

b)Unit 1

Explain the key components of a Grammarians Language Model (LM) and how it functions in NLP?

Q.2
a)Unit 1

Explain the challenges associated with detecting and Correcting Spelling Errors in natural language text.

b)Unit 2

What is smoothing in the context of N-gram models and why is it necessary? Provide example to show how smoothing works?

Q.3
a)Unit 2

What is transformation-based tagging and how does it contribute to improving Part-of-Speech tagging accuracy?

b)Unit 2

Explain the principles of rule-based Part-of-Speech tagging.

Q.4
a)Unit 3

How do CFGs capture the syntactic structure of sentences, and what are the key components of a CFG?

b)Unit 3

Explain the process of syntactic parsing.

Q.5
a)Unit 3

What is the process involved in constructing treebanks, and how do they play a role in both the development and assessment of syntactic parsers?

b)Unit 4

What is Word Sense Disambiguation in NLP?

Q.6
a)Unit 4

Explain the concept of compositional semantics and how it contributes to understanding the meaning of complex expressions?

b)Unit 5

Explain how speech recognition works, and how NLP enhances this technology?

Q.7
a)Unit 5

How does NLP make work processors smarter and more user-friendly?

b)Unit 5

How is NLP used in commercial applications to improve user experience and interaction?

Q.8
a)Unit 4

Write short notes on following:

i) Dictionary and Thesaurus

ii) First order logic

iii) Tokenization