Artificial Intelligence - Natural Language Processing

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16. A 4-gram model is a ________ order Markov Model.

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Option : D
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17. Arrange the words "blueberry, cranberry, raspberry, strawberry" in descending order, based on the frequency of their occurrence in the Google Books n-grams. The Google Books n-gram viewer i available at https://books.google.com/ngrams.

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Option : C
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18. For the string 'mash', identify which of the following set of strings have a Levenshtein distance of 1

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Option : C
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19. Assume that we modify the costs incurred for operations in calculating Levenshtein distance, such that both the insertion and deletion operations incur a cost of 1 each, while substitution incurs a cost of 2. Now, for the string 'lash' which of the following set of strings will have an edit distance of 1?

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Option : D
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20. Given a corpus C₂, the Maximum Likelihood Estimation (MLE) for the bigram "dried berries" is 0.3 and the count of occurrence of the word "dried" is 580 for the same corpus C₂, the likelihood of "dried berries" after applying add-one smoothing is 0.04. What is the vocabulary size of C₂?

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Option : B
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