Showing posts with label Information Retrieval MCQ. Show all posts
Showing posts with label Information Retrieval MCQ. Show all posts

Sunday, June 20, 2021

Multiple Choice Questions with Answers in Information Retrieval SET 2

Top 5 quiz questions in IR, Information retrieval quiz, information retrieval mcqs with answers, information retrieval,  stop word removal, inverted index, heaps' law, precision, recall, query expansion, inverse document frequency

Information Retrieval MCQs - SET 02

1. Which of the following is the local method for improving recall of an information retrieval system?

a) Query expansion

b) Relevance feedback

c) Ontology based model

d) None of the above

Click here to view answer and explanation


 

2. The process of removing most common words (and, or, the, etc.) by an information retrieval system before indexing is known as

a) Lemmatization

b) Stop word removal

c) Inverted indexing

d) Normalization

Click here to view answer and explanation


 

3. An inverted index arranges data in a sorted order as per

a) the documents

b) the frequency of each document

c) the frequency of each term

d) the terms

Click here to view answer and explanation


 

4. The vocabulary size (unique words) of a text can be estimated using

a) Zipf’s law

b) Scientific law

c) Heaps’ law

d) Inverted index rule

Click here to view answer and explanation


 

5. A metric used measure the importance of a term in a text document collection is called

a) Inverse Document Frequency

b) Term Frequency

c) Inverse Term Frequency

d) Document Frequency

Click here to view answer and explanation


 

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Related links

 

Keywords

Which metric is used to measure the importance of a term in a collection in IR?

What does Heaps' law do?

How are data in inverted index arranged?

Why do we remove stop words? Importance of removing stop words. Contribution of stop word removal in information retrieval.

How local methods are helpful in improving recall of a retrieval system?

Saturday, June 19, 2021

Multiple Choice Questions with Answers in Information Retrieval SET 1

Top 5 quiz questions in IR, Information retrieval quiz, information retrieval mcqs with answers, information retrieval, classic retrieval models, inverted index, precision, recall, query expansion, relevance feedback questions

Information Retrieval MCQs - SET 01

1. Which of the following is/are classical IR models?

a) Vector model

b) Boolean model

c) Interaction model

d) Cluster model

Click here to view answer and explanation


 

2. What is the disadvantage of Boolean retrieval model?

a) Easy to implement

b) Difficult to rank output

c) Difficult to process a query

d) It is one of the complex retrieval models

Click here to view answer and explanation


 

3. An inverted index is a database index that ____.

a) stores, for each term t, the list of all documents that contain term t

b) stores mapping from documents to words

c) orders the terms in a different order which is not a sequential order.

d) All of the above

Click here to view answer and explanation


 

4. For a query, a retrieval system retrieves 42 relevant documents and 34 irrelevant documents from a document collection that consists of 95 relevant documents. What is the precision of the retrieval system?

a) 0.40

b) 0.50

c) 0.62

d) 0.55

Click here to view answer and explanation


 

5. Which of the following techniques tries to improve recall of an information retrieval system by adding synonyms to the query?

a) Query expansion

b) Relevance feedback

c) Pseudo relevance feedback

d) None of the above

Click here to view answer and explanation


 

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Related links

 

Keywords

Information retrieval quiz questions with answers

How to improve recall of an IR system

What are the classical IR models

How to calculate precision of a retrieval system

Define the term inverted index

List the disadvantage of boolean retrieval model

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