Data Mining and Business Intelligence — Winter 2022

Define: Information Gain, Gain Ratio & Gini Index

Explain Rule-based Classification in brief.

Differentiate OLTP and OLAP.

What is meta data repository? Explain.

Adata warehouse is a subject-oriented, integrated, time-variant, and nonvolatile collection of data – Justify.

What is Cuboid? Explain various OLAP operations on data cube with example.

With the help of a neat diagram explain the 3-tier architecture of a data warehouse.

Discuss click-stream analysis using data mining.

Explain Snowflake schema with an example.

List and Explain Data mining task primitives.

Discuss fraud detection analysis using data mining.

Explain Fact Constellation Schema for Multidimensional Database with an example.

Define the term “Data Mining”. With the help of a suitable diagram explain the process of knowledge discovery from databases.

What is MapReduce? Explain in brief.

Explain text mining using example.

What is noise? Describe the possible reasons for noisy data. Explain the different techniques to remove the noise from data.

What is Big Data? What is big data analytic? Explain in brief.

Discuss the main features of Hadoop Distributed File System.

What is data transformation in data mining? Explain.

Describe web mining using example.

What is classification? Explain classification as a two step process with diagram.

Explain Apriori algorithm for discovering frequent item sets for mining Boolean Association Rules.

Define: Name Node, Data Node, Spatial Mining

What is clustering? List out the General applications of Clustering.

What is Market Basket Analysis? Explain Association Rules with Confidence & Support.