NLP quiz II

In a Markov chain, what does the transition matrix represent?

• The final state of the process

• The initial state of the process

• The probabilities of moving between states

• The average time spent in each state

What does the Markov Property state?

• The present depends on the future

• The past affects the present

• The future depends only on the present

• The future depends on the past

If a Markov chain has a state space S = {1, 2, 3}, what is the size of the transition matrix?

• 2x2

• 3x3

• 4x4

• 1x1

NLP is used in machine translation to convert text from one language to another. Which of the following challenges is the most critical in this process?

• • Tokenization

• • Ambiguity in source language

• • Low-resource language support

• • Sentiment extraction from the text

• ' The car hit the pole while it was moving', what type of ambiguity exists in the above sentence?

• Lexical

• Syntactic

• Referential

• Pragmatic

Bigram model also called as _______________________

• First-order Morkov model

• Second-order Morkov model

• Third-order Morkov model

• (N-1)th-order Morkov model

Sentiment analysis is also called as ____________________

• Summarization

• Question-Answering

• Opinion Mining

• Named-Entity Recognition.

This kind of ambiguity occurs when a sentence is parsed in different ways.

• Lexical Ambiguity

• Pragmatic Ambiguity

• Semantic Ambiguity

• Syntactic Ambiguity

Which of the following is an example of “hyponym-hypernym” semantic relationship?

• Car-Vehicle

• Wheel-Car

• Car-Wheel

• Car-Ford

The root form of a word in Wordnet dictionary is called?

• Stem

• Sense

• Gloss

• Lemma