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Question

What data structure is commonly used for information retrieval, and how is it implemented with MapReduce?

a.

Binary trees, implemented using reduce() function

b.

Inverted indices, implemented using map() and reduce() functions

c.

Hash tables, implemented using the identity map()

d.

Linked lists, implemented using partitioning in the map stage

Posted under Big Data Computing

Answer: (b).Inverted indices, implemented using map() and reduce() functions Explanation:Inverted indices are commonly used for information retrieval, and they can be implemented with MapReduce using the map() and reduce() functions.

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Q. What data structure is commonly used for information retrieval, and how is it implemented with MapReduce?

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