Question 17

True/False: The purpose of the inverse document frequency is to increase the weight of terms with high collection frequency.

Select one:

True

False

Question 18

Weighted zone scoring is referred to as:

Select one:

a. ranked Boolean retrieval

b. Zipf retrieval

c. Ad Hoc query retrieval

d. Jaccard retrieval

Question 19

True/False: Heap's law is the formula used to estimate the vocabulary size of a collection is.

Select one:

True

False

Question 20

Which of the following is NOT a benefit of index compression?

Select one:

a. Simplified algorithm design

b. Reduction of disk space

c. Faster transfer of data from disk to memory

d. Increased Use of caching

Question 21

True/False: Precision in an information retrieval system refers to the fraction of relevant documents in the collection that were returned by the system.

Select one:

True

False

Question 22

A group of related documents against which information retrieval is employed is called:

Select one:

a. Corpus

b. Text Database

c. Index Collection

d. Repository