JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA V Semester Examinations, December - 2019
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INFORMATION RETRIEVAL SYSTEMS
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Time: 3 Hours--- Content provided by FirstRanker.com ---
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Max. Marks: 60
S Note: This question paper contains two parts A and B.
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Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part Bconsists of 5 Units. Answer any one full question from each unit. Each question carries
8 marks and may have a, b, c as sub questions.
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PART - A
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5 ? 4 Marks = 20
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1.a) What do you understand by the terms "grepping" and "incidence matrix"? Explain.[4]b) Explain about weighted zone scoring.
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[4]
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c)What do you understand by text-centric and data-centric XML retrieval? Explain. [4]
d)
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What do you understand about support vector machines? Explain.
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[4]e) What is a web graph? Explain.
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[4]
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5 ? 8 Marks = 40
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2.
Explain the process of querying using an inverted index and the basic boolean retrieval
model.
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[8]
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OR
3.
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What do you understand by tokenization? Explain in detail.--- Content provided by FirstRanker.com ---
[8]
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4.
Explain about term frequency and weighting in detail.
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[8]
OR
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5.
Explain the following components of an information retrieval system
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a) Tiered indexes
b) Query-term proximity.
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[4+4]
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6.
Discuss the vector space model for XML retrieval.
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[8]
OR
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7.
Explain about probability ranking principle.
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[8]
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8.
Explain the hierarchical clustering in information retrieval.
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[8]OR
9.
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Discuss the k-means flat clustering algorithm.
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[8]
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10.
Discuss about crawler architecture in detail.
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[8]
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OR
11.
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Write short notes on:a) Spammers
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b) Informational, navigational and transactional queries.
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[4+4]
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