Exam Details

Subject information retrieval systems
Paper
Exam / Course b.tech
Department
Organization Vardhaman College Of Engineering
Position
Exam Date June, 2017
City, State telangana, hyderabad


Question Paper

Hall Ticket No:
Question Paper Code B3260
(AUTONOMOUS) M.Tech II Semester End Semester Regular Examinations, June 2017
(Regulations: VCE-R15) INFORMATION RETRIEVAL SYSTEMS
(Computer Science and Engineering) Date: 16 June, 2017 FN
Time: 3 hours
Max Marks: 70
Answer any Five Questions.
All Questions carries equal marks.
1.
Does a Private Index File differ from a standard Database Management System What problems need to be addressed when using a DBMS as part of an Information Retrieval System?
7M
Briefly discuss about the capabilities of search in Information Retrieval Systems.
7M
2.
Why is the concept of processing tokens introduced and how does it relate to a word? What is the impact of searching being based on processing tokens versus the original words in an item?
7M
Describe the rationale, why the use of proximity will improve precision versus use of just the Boolean functions. Discuss its effect on improvement of recall.
7M
3.
Illustrate how does the process of information extraction differ from the process of document indexing?
7M
Describe the similarities and differences between term stemming algorithms and n-grams. Describe how they affect precision.
7M
4.
Briefly discuss the problems with Luhn's concept of "resolving power".
7M
Describe how a bigram data structure would be used to search for the search term "computer science" (NOTE: the search term is a contiguous word phrase). What are the possible sources of errors that could cause non-relevant items to be retrieved?
7M
5.
What information is available in a natural language based indexing system that is not available in normal statistical systems? What effect does this have on the search process?
7M
Briefly discuss the scenario Under what conditions would the Bayesian and the Vector approach be the same?
7M
6.
Discuss the roles of Hypertext play in indexing and the definition of an item? What is the major problem with URLs as a basis for hypertext links?
7M
Discuss the limits associated with use of preattentive processes, configural aspects, and spatial frequency as a basis for information visualization.
7M
7.
Use the Boyer-Moore text search algorithm to search for the term FANCY in the text string FANCIFUL FANNY FRUIT FILLED MY FANCY.
i. Show all of the steps and explain each of the required character shifts
ii. How many character comparisons are required to obtain a match
7M
Briefly discuss the problems associated with generalizing the results from controlled tests on information systems to their applicability to operational systems?
7M
8.
Explain the effect of clustering techniques on reducing the user overhead of finding relevant items.
7M
Write a brief note on Selective Dissemination of Information Search.
7M


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