Question 1

In information retrieval, extremely common words which would appear to be of little value in helping select documents that are excluded from the index vocabulary are called:

Select one:

a. Stop Words

b. Tokens

c. Lemmatized Words

d. Stemmed Terms

Question 2

A process that reduces the size of a vocabulary by reducing to the 'root' of words is called:

Select one:

a. Stemming

b. Lemmatizing

c. Removal of stop words

d. Posting

e. pruning

Question 3

True/False: Given two strings s1 and s2, the edit distance between them is sometimes known as the Levenshtein distance.

Select one:

True

False

Question 4

True/False: In the bag of words model, the exact ordering of terms within the document is not relevant to processing.

Select one:

True

False

Question 5

An approach to compression that takes advantage of the redundancy in the dictionary that results from common prefixes that come from sorted terms is called:

Select one:

a. Front Coding

b. Blocked storage

c. Prefix Coding

d. Variable byte encoding