NPTEL Learning Analytics Tools Week 10 Assignment Answers 2024
1. N-grams are defined as the combination of N keywords together. How many bi-grams can be generated from a given sentence:
“Learners’ engagement in class and their interaction with peers impact their assessment performance.”
- 10
- 14
- 12
- 13
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2. The Word2Vec model is a machine-learning model that creates vector notations of text objects.
- True
- False
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3. Given the following dictionary of words-
{1: Sun, 2: Moon, 3: Stars, 4: east, 5: west, 6: north, 7: south, 8: rises, 9: sets, 10: and, 11: the, 12: in }
Which of the following sentences does the index {1, 9, 12, 11, 4} represent?
- Sun rises in the east
- Sun sets in the west
- Sun rises in the west
- Sun sets in the east.
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4. What is the minimum edit distance between INTENTION and EXECUTION?
- 4
- 5
- 6
- 7
Answer :-
5. Which of the following statements best describes the Markov assumption?
- The occurrence of the current word XXX depends on the previous word YYY.
- The occurrence of the current word XXX depends on the future word YYY.
- Anything that can go wrong will go wrong.
- The occurrence of the previous word XXX depends on the current word YYY.
Answer :-
6. Consider the following two statements:
Statement 1: Ram loves to watch movies.
Statement 2: Dev loves to watch cricket matches.
What is the length of the document vector formed by these two statements?
- 11
- 7
- 9
- 8
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7. Which of the following is an application of NLP?
- Quality Assessment
- Body posture detection
- Sentiment analysis
- Creating a Q&A database.
Answer :-
8. Which of the following set of operations transforms one string into another using the Levenshtein distance?
- Insert, Delete, Append
- Insert, Delete, Substitute
- Insert, Copy, Delete
- Insert, Substitute, Merge
Answer :-
9. Which of the following words can be obtained from the word “Crane” with the minimum number of edits, assuming each edit operation (insertion, deletion, or substitution) costs 1?
- Crayon
- Grain
- Crate
- Chain
Answer :-
10. Which of the following techniques are used to convert a keyword into its base form?
- Lemmatization
- Levenshtein
- Stemming
- Soundex
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