BIT Data Warehousing and Data Mining

bitsemester 8

This course introduces advanced aspects of data warehousing and data mining, encompassing the principles, research results and commercial application of the current technologies.

Chapter Wise Notes Question Banks Syllabus Chapter Wise Questions Viva Practical

Institute of Science and Technology

2081

Bachelor in Information Technology

Data Warehousing and Data Mining

BIT454

Full Marks: 60

Pass Marks: 24

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Section A"

Long Answer Questions. Attempt any TWO questions.

[2 × 10 = 20]

List different clustering approaches. Write the algorithm of K-means algorithm. What are its limitations?

[2 + 6 + 2]

What do you understand by classification by back propagation? How is it different from Bayesian classification? Explain.

[6 + 4]

Generate the frequent itemset from the following data using the Apriori algorithm and find the strong association rules.

TID	Items
1	{A, C, D}
2	{B, C, D}
3	{A, B, C, D}
4	{B, D}
5	{A, B, C, D}

Minimum Support = 60%, Minimum Confidence = 75%

[10]

"Section B"

Short Answer Questions. Attempt any EIGHT questions.

[8 × 5 = 40]

What do you mean by text mining? Explain with an example.

[5]

How do you carry out social network analysis? List two of its uses.

[4 + 1]

Illustrate the use of outlier analysis with an example.

[5]

Explain any two conceptual modeling techniques of data warehousing.

[5]

Why is data preprocessing required? Explain any two data preprocessing methods.

[1 + 4]

Define full cube. Discuss the working mechanism of beam search.

[1 + 4]

Differentiate between data warehouse and operational database.

[5]

What are the data mining functionalities? Explain.

[5]

Write short notes on:

(a) OLAP

(b) Laplace Smoothing

[2 + 2.5 + 0.5]

BIT Data Warehousing and Data Mining

BIT Semester 8 Data Warehousing and Data Mining Question Paper 2081 – Solved

Institute of Science and Technology