Question 1

What type of index is the basic type of index commonly used by information retrieval systems where each entry in the index consists of a token and document ID's that correspond to that token?

Group of answer choices

Suffix tree index

Hash index

N-gram index

Inverted/Reverse index

Question 2

Which of the following is the best definition of a token in an information retrieval system?

Group of answer choices

An entry in the index that represents a document characteristic

A movie or show recommendation generated by Netflix's machine learning algorithm

An algorithm that ranks documents

A user's query

Question 3

Which of the following is the starting point for calculating the relevance score of a document for a query?

Group of answer choices

Matching algorithm

TF * IDF ratio

N-gram logarithm

Metadata thingy

Question 4

In the 60 Minutes segment that was assigned for this unit's reading memo, a tech leader, a lawyer, and an EU commissioner spoke up criticizing Google for which of the following categories of unethical business practices?

Group of answer choices

Selling users' personal information

Spying on users

Undermining the competition

Colluding with the Russians