Code No: 64248/MT
M.Tech. – II Semester Regular Examinations, September, 2008
INFORMATION RETRIEVAL SYSTEMS
Time: 3hours Max. Marks:60
Answer any FIVE questions
All questions carry equal marks
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1.a) Discuss the objectives of information retrieval systems.
b) How the information retrieval system is related to database
2.a) Describe about various standards used in information retrieval
b) Explain in detail about various browse capabilities.
3.a) Describe the concepts of information extraction.
b) What is an indexing? Explain its objectives.
4.a) Describe the similarities and differences between term stemming
algorithms and n-grams.
b) Discuss in detail N-gram data structure.
5.a) What are the problems with weighting schemes?
b) Explain about Bayesian model in detail with an example.
6.a) Define clustering. What are the general guidelines for clustering?
b) Compare and contrast manual clustering and Automatic Term
7.a) Discuss about relevance feedback techniques.
b) How do you expect that relevance feedback using negative
judgments will affect the precision and recall of an information
8.a) Discuss about the techniques involved in software text search
b) List out the differences between Boyer-Moore text search algorithm
and Knuth-Pratt-Morris algorithm.