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2003 Course Information Retrieval

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Total No. of Questions : 12] P961 [Total No. of Pages : 2 [3664]-358 B.E. - (I.T.) (Semester - II) INFORMATION RETRIEVAL (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) 3) 4) 5) Answer Question 1 or 2, 3 or 4, and 5 or 6 from section - I and Question 7 or 8, 9 or 10, and 11 or 12 from section - II. Answers to the two sections should be written in separate books. Neat diagrams must be drawn wherever necessary. Figures to the right indicate full marks. Assume suitable data, if necessary. SECTION - I Q1) a) With the help of Block diagram explain typical Information Retrieval System. [8] b) Explain conflation algorithm in detail. [8] OR Q2) a) Explain Rochhio s Algorithm. b) What is Clustering? Explain the use of clustering in IR. [8] [8] Q3) a) What is inverted file? How it can be used in information retrieval? [8] b) Describe various classification methods based on relations between properties, classes & objects. [8] OR Q4) a) Explain Suffix arrays with the help of diagram. What is supra index? How it can be constructed? [8] b) Describe the Boolean & Vector Model. [8] Q5) a) What are the different starting points. [10] b) Explain Information Access Process. OR [8] P.T.O. Q6) Write short Notes on : [18] a) Precision and Recall. b) Online Public Access Catelog (OPAC). c) Luhn s idea. SECTION - II Q7) a) Write a note on : SQL3 and Online Retrieval Systems. [8] b) Discuss the Write a short note on following points with respect to Digital Libraries; [8] - DL architecture issues. - Document models, representation and access. - Prototypes, projects and interface standards. OR Q8) a) Explain with formulae the basic probabilistic model. [8] b) Design user interface of search engine using various visualization [8] techniques. Q9) a) Describe MIMD architecture with respect to parallel IR. b) Explain the automatic Feature Extraction. [8] [8] OR Q10) a) Explain the One dimensional time series. b) Describe query processing in distributed IR systems. Q11) a) Write a note on : characterizing the web. b) Explain MULTOS data model. [8] [8] [10] [8] OR Q12) a) Write a note on : Multilingual IR. [10] b) Elaborate the characteristics of the query language used in multimedia IR systems. [8] [3664]-358 2

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