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Posted By: kishore Member Level: Gold Posted Date: 20 May 2008
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2007 Jawaharlal Nehru Technological University M.C.A Computer Aplications DATA WAREHOUSING AND MINING Question paper
1.a) What are the different data warehouse components?
b) Explain the various steps in data pre-processing.
2.a) Differentiate between multi-dimensional OLAP and multi-operational
OLAP.
b) What is a data cube? Explain its implementation in data warehouse.
3.a) Discuss about various data mining primitives.
b) Write about different functionalities of data stores.
4.a) “Concept hierarchy are useful in data mining” Discuss.
b) Explain the significance of analytical characterization. How is it
performed?
5.a) Write apriori algorithm and explain the same.
b) Define the terms border set, frequent itemset.
6.a) Explain about different data types used in cluster analysis.
b) Discuss about K–means algorithm.
7.a) What are the challenges posed by world wide web?
b) Discuss about time–series analysis.
8. Answer any THREE of the following:
(a) Hybrid OLAP
(b) Social impacts of data mining
(c) Expert System
(d) Mining spatial databases.
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