JNTU B.Tech Examinations, DATA WAREHOUSING AND DATA MINING, Aug/Sep 2008

JNTU B.Tech Examinations, DATA WAREHOUSING AND DATA MINING,

Aug/Sep 2008

DATA WAREHOUSING AND DATA MINING

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

SET-III

1. (a) Explain the architecture of a typical data mining system

(b) Discuss the issues regarding data warehouse architecture. [8+8]

 

2. Explain various data reduction techniques. [16]

 

3. Write the syntax for the following data mining primitives:

(a) The kind of knowledge to be mined.

(b) Measures of pattern interestingness. [16]

 

4. (a) How can we perform attribute relevant analysis for concept description? Ex-

plain.

(b) Explain the measures of central tendency in detail. [8+8]

 

5. (a) Discus about Association rule mining.

(b) What are the approaches for mining multilevel Association rules? Explain.

[8+8]

 

6. (a) Explain decision tree induction classification.

(b) Describe backpropagation classification. [8+8]

 

7. (a) Discuss about binary, nominal, ordinal, and ratio-scaled variables.

(b) Explain about grid-based methods. [8+8]

 

8. A heterogeneous database system consists of multiple database systems that are

defined independently, but that need to exchange transform information among

themselves and answer global queries. Discuss how to process a descriptive mining

query in such a system using a generalization-based approach. [16]

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