Data Mining – Questions Answers

Data mining Questions and answers. Data mining FAQ. Data mining is a process of extracting knowledge from large amounts of data.

In this Data Mining FAQ I tried to cover a few data mining interview questions answers.

1. What is Data Mining?

Extracting knowledge from large amount of data, in which process involves as:

• cleaning
• integration
• selection
• transformation
• mining/processing
• pattern evaluation
• presentation

2. What are the different discipline of Data Mining fields?

Data Mining is a vast fields, Data Mining disciplines include many fields:

• Statistics: This fields enabled different formulae of computation for the analysis to be done on data.
• Machine Learning: which provide different tools which based on different logarithm
• Databases: This is actual repository , where mining is done.
• Information Retrieval

3. What kind of patterns can be mined/found by data mining techniques?

• Characterization and Discrimination
• Frequent patterns, Associations, and Correlations
• Classification and Prediction
• Cluster analysis
• Outlier analysis
• Evolution analysis

4. Give examples of “Characterization and Discrimination”

• Characteristics of customers who buy a certain kind of product
• Customers who buy product A vs customers who buy another product B

5. Give examples of “Frequent patterns, Associations, and Correlations”

• What kind of products do customers buy together?
• If customer buys product A, what’s the chance that he/she will buy product B as well

6. Give examples of each of the “Classification and Prediction”

• Classify the sales of various products into different classes
• Predict the sales of the product