Virtual Labs

What is the primary purpose of chunking in natural language processing?

a: To count the number of words in a sentence Explanation

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b: To identify and group syntactically related words into phrases Explanation

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c: To translate sentences between different languages Explanation

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d: To correct grammatical errors in text Explanation

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In the IOB tagging scheme, what does the 'B-' prefix represent?

a: The end of a chunk Explanation

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b: A word that belongs to multiple chunks Explanation

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c: The beginning of a new chunk Explanation

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d: A word that doesn't belong to any chunk Explanation

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Which of the following is NOT a common chunk type in English?

a: Noun Phrase (NP) Explanation

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b: Verb Phrase (VP) Explanation

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c: Sentence Phrase (SP) Explanation

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d: Prepositional Phrase (PP) Explanation

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In the sentence 'The big red car', how should this phrase be chunked?

a: [The] [big] [red] [car] - each word as separate chunks Explanation

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b: [The big red car] - as a single noun phrase Explanation

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c: [The big] [red car] - as two separate chunks Explanation

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d: [The] [big red car] - determiner separate from the rest Explanation

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What is the main difference between chunking and full syntactic parsing?

a: Chunking is faster but provides less detailed structural information Explanation

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b: Chunking only works with English, while parsing works with all languages Explanation

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c: Chunking is more accurate than full parsing Explanation

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d: There is no difference between chunking and parsing Explanation

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In Hindi chunking, what is the key difference from English regarding prepositions/postpositions?

a: Hindi doesn't use any positional markers Explanation

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b: Hindi postpositions are included within the noun phrase chunk Explanation

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c: Hindi prepositions work exactly like English prepositions Explanation

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d: Hindi uses only prepositions, never postpositions Explanation

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Which of the following best represents the IOB tagging for the phrase 'will be running'?

a: will/B-VP be/I-VP running/I-VP Explanation

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b: will/B-VP be/B-VP running/B-VP Explanation

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c: will/O be/O running/O Explanation

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d: will/I-VP be/I-VP running/B-VP Explanation

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What is the primary challenge in automatic chunking systems?

a: Limited vocabulary coverage Explanation

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b: Resolving attachment ambiguities and boundary decisions Explanation

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c: Converting text to speech Explanation

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d: Translating between languages Explanation

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In evaluating chunking performance, what does the F1-score measure?

a: Only the precision of chunk boundary identification Explanation

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b: Only the recall of chunk boundary identification Explanation

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c: The harmonic mean of precision and recall Explanation

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d: The total number of correctly identified chunks Explanation

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