B.Tech-INFORMATION TECHNOLOGY 7th Sem DATAWARE HOUSING AND MINING(Anna University Trichy, Tiruchi, Tamil Nadu-2009)

1. Explain the difference between Star & Snowflake scheme.
2. What are the task to be accomplished as part of preprocessing
3. What is the frequent itemset priority.?
4. What is overfitting and how to prevent it?.
5. What do you mean by Relevance analysis.?
6. What is Cuboid and how it is used in Datamining.?
7. How OLAP helped in concept characterization.