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Question

How does HDT-FoQ handle access by predicate efficiently?

a.

It performs a full scan of Sp for each predicate.

b.

It uses a separate data structure for each predicate.

c.

It employs a wavelet tree for predicate access.

d.

It only allows access by subject, not by predicate.

Posted under Big Data Computing

Answer: (c).It employs a wavelet tree for predicate access. Explanation:HDT-FoQ handles access by predicate efficiently by employing a wavelet tree for predicate access.

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Q. How does HDT-FoQ handle access by predicate efficiently?