Download JNTU MCA 4-semester DATA WAREHOUSING AND MINING November 2008 Exam Question Paper | Indian Shout

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Download JNTU MCA 4-semester DATA WAREHOUSING AND MINING November 2008 Exam Question Paper

Code No: R6-43-MCA       R6
M.C.A. IV Semester Supplimentary Examinations, November 2008
DATA WAREHOUSING AND MINING
– – – –
Time: 3 hours Max Marks: 60
Answer any FIVE Questions
All Questions carry equal marks

1. Explain about data warehouse implementation.

2. Suppose that the data for analysis include the attributes temperature in degree Celsius. The temperature values for the data tuples are ( in increasing order):
25,26,26,27,27,27,28,29,29,30,32,32,33,33,33,35,35,36,37,38,38,38,39,40.
(a) Plot an equiwidth histogram of width 10
(b) Use normalization by decimal scaling to transform the value 33 for temperature
(c) How to determine the outliers in the data?

3. Discus about Data Mining primitives in detail.

4. Write short notes on the following:
(a) Interquartile range
(b) Five number summary
(c) Entropy
(d) Attribute generalization control.

5. Explain about mining Multidimensional Association rules from Relational Databases?

6. Explain about the Following
(a) Algorithm for generating Decision trees
(b) Prepuining and Post pruning Approaches.

7. Explain about the requirement of clustering in Data mining in detail?

8. (a) Explain about similarity search in time series analysis.?
(b) Explain about the query languages for time sequences ?

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