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Question

Why is there a trade-off between expressivity and efficiency in ontology and mapping languages?

a.

To make query rewriting more complex

b.

To ensure that every possible problem can be solved

c.

To reduce the need for domain-specific plug-ins

d.

To guarantee efficient query rewriting and execution

Posted under Big Data Computing

Answer: (d).To guarantee efficient query rewriting and execution Explanation:There is a trade-off between expressivity and efficiency to ensure efficient query rewriting and execution.

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Q. Why is there a trade-off between expressivity and efficiency in ontology and mapping languages?

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