FUNDAMENTALS OF COMPUTER

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DATABASE FUNDAMENTALS

DATA WAREHOUSING AND DATA MINING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ refers to the mapping or classification of a class with some predefined group or class.
A
Data Discrimination
B
Data Characterization
C
Data Definition
D
Data Visualization
Explanation: 

Detailed explanation-1: -Data Discrimination − It refers to the mapping or classification of a class with some predefined group or class.

Detailed explanation-2: -Classification is learning a function that maps (classifies) a data item into one of several predefined classes. Regression is learning a function which maps a data item to a real-valued prediction variable.

Detailed explanation-3: -Knowledge discovery in databases (KDD) is the non-trivial extraction of implicit, previously unknown, and potentially useful information from databases.

Detailed explanation-4: -Apart from these, a data mining system can also be classified based on the kind of (a) databases mined, (b) knowledge mined, (c) techniques utilized, and (d) applications adapted.

Detailed explanation-5: -Data Integration − In this step, multiple data sources are combined.

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