Download JNTUH MCA 5th Sem R15 2018 January 825AD Information Retrieval Systems Question Paper

R15

Code No: 825AD

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA V Semester Examinations, January - 2018

INFORMATION RETRIEVAL SYSTEMS

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Time: 3 Hours

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Max. Marks: 75

Note: This question paper contains two parts A and B.

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Part A is compulsory which carries 25 marks. Answer all questions in Part A.
Part B consists of 5 Units. Answer any one full question from each unit. Each
question carries 10 marks and may have a, b, c as sub questions.

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PART - A

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5 ? 5 Marks = 25

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1.a) Define Information Retrieval. Explain how Information Retrieval is different from

DBMS.

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[5]

b) Explain briefly the system issues in Information Retrieval.

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[5]

c) Write a short note on the challenges faced in XML Retrieval.

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[5]

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d) What is Matrix Decomposition? State the two theorems associated with Matrix

Decomposition.

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[5]

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e) Write a short note on Connectivity Servers.

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[5]

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PART - B

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5 ? 10 Marks = 50

2.

Explain in detail about:

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a) Single-Pass-in Memory Indexing.

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b) Distributed Indexing.

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[5+5]

OR

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3.a)

Write a short note on Wildcard Queries.

b)

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Explain in detail about Stemming and Lemmatization.

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[5+5]

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4.

Explain in detail about components of Information Retrieval System.

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[10]

OR

5.

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Explain in detail variant tf-idf functions used for assigning weight to terms in a
document for Retrieval.

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[10]


6.a)

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Explain in detail various types of Language Models.

b)

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Write a short note on Language Models versus Other Approaches in IR. [5+5]

OR

7.

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Explain in detail about Na?ve Bayes Text Classification.

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[10]

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8.

Explain in detail about Hierarchical Agglomerative Clustering.

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[10]

OR

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9.a)

Write a short note on machine learning methods in ad-hoc information retrieval.

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b)

Explain in detail about Soft Margin Classification.

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[5+5]

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10.a) Explain in detail about DNS Resolution.
b) Write a detailed note on URL Frontier.

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[5+5]

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OR

11.

What is PageRank? Explain in detail about Markov Chains.

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[10]

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