Bachelors Level/Fourth Year/Seventh Semester/Science csit/seventh semester/data warehousing and data mining/syllabus wise questions
B.Sc Computer Science and Information Technology
Institute of Science and Technology, TU
Data Warehousing and Data Mining (CSC420)
Year Asked: 2075, syllabus wise question
Cluster Analysis
1.
What is the purpose of cluster analysis in data mining? Explain.[5]
Data Cube Technology
1.
Describe how bitmap and join indexing are used to represent OLAP data. Explain the different components of data warehouse.[10]
2.
Explain OLAP operations with examples.[5]
3.
Describe the significances of pre-computation of data cube.[5]
Introduction to Data Mining
1.
How does KDD differ with data mining? Describe the stages of data mining.[5]
Introduction to Data Warehousing
1.
How different schema are used to model data warehouse? Explain.[5]
Mining Frequent Patterns
1.
Give any two types of association rules with example. Trace the results of using the Apriori algorithm on the grocery store example with support threshold 2 and confidence threshold 60%. Show the candidate and frequent itemsets for each database scan. Enumerate all the final frequent itemsets. Also indicate the association rules that are generated.