3Q About data mining it is
Q1: Compare the following with the help of examples.
(a) Star schema and snowflake schema
(b) Data cleaning and data transformation
(c) Enterprise warehouse, data mart, and virtual warehouse
(d) OLAP and OLTP
Q2:
a) Explain three tiers of data warehouse architecture.
b) Which methods are used for efficient computations of data cubes.
c) Which algorithm is most appropriate to compute closed iceberg cubes efficiently?
Q3: Discuss candidate generation in Generalized Sequential Pattern (GSP) with the help of an example.