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Question

What is one of the challenges related to ontology and mappings in OBDA?

a.

Lack of technical expertise

b.

Difficulty in extending the ontology during query formulation

c.

The need for efficient query rewriting

d.

Overly expressive mechanisms

Posted under Big Data Computing

Answer: (b).Difficulty in extending the ontology during query formulation Explanation:One of the challenges is the difficulty in extending the ontology during query formulation.

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Q. What is one of the challenges related to ontology and mappings in OBDA?

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