B.Sc. (Computer Science) Sem 6 Data Mining and Warehousing Apr 2026 Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2) Figures to the right indicate marks

1. Q3 in-depth answers and diagrams will be appreciated
2. Q4 Mixing of sub-questions is not allowed
3. Q1 Attempt ANY FOUR from the following: (20M)
   • (a) Describe the framework of Data Warehouse with suitable diagram
   • (b) Write a note on granularity of facts
   • (d) Elaborate parts of Virtual Data Warehouse
   • (e) Design a Star Schema for Data Warehouse of Hospital Management System
   • (f) When do you prefer Enterprise Data Warehouse model? Justify your answer
4. Q2 Attempt ANY FOUR from the following: (20M)
   • (a) What are various social implications of data mining?
   • (c) Discuss pre-processing of data in the data mining
   • (d) Explain the terms Support ,Confidence, and Lift in Association Rule
   • (e) What is Knowledge discovery in Data? Explain KDD process with proper
   • (f) How will you construct FP growth tree for the following transactions containing set of item = {a,b,c,d.} (min support=3)
5. Q3 Attempt ANY FOUR from the following: (20M)
   • (a) Distinguish between classification and prediction
   • (b) Explain linear regression with example
   • (c) Explain how performance of classifiers are measured?
   • (d) List the applications of K-means clustering in Data Mining
   • (e) Define Gini Index and Discuss its purpose in decision tree algorithm
   • (f) Where can be Web Mining used? Justify your answer
6. Q4 Attempt ANY FIVE from the following: (15M)
   • (a) State the characteristics of Data Warehouse
   • (b) Define attribute and Enlist its types
   • (d) What do you understand from Statistical Description of data
   • (e) What does confusion matrix mean? Explain
   • (f) State the applications of Classification

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