Information gain, Computer Engineering

Information Gain:

Now next here instantly return to the problem of trying to determine the best attribute to choose for a particular node in a tree. As in the following measure calculates a numerical value for a given attribute and A and with respect to a set of examples and S. However notice that there the values of attribute A will range over a set of possibilities that we call Values(A), so that for a particular value from that set, v, we write Sv  for the set of examples that have value v for attribute A. 

Moreover the information gain of attribute A, that is relative to a collection of examples, S, is calculated as: 

2074_Information Gain.png

Thus the information gain of an attribute can be seen as the expected reduction in entropy caused through knowing the value of attribute A

Posted Date: 1/11/2013 6:41:41 AM | Location : United States







Related Discussions:- Information gain, Assignment Help, Ask Question on Information gain, Get Answer, Expert's Help, Information gain Discussions

Write discussion on Information gain
Your posts are moderated
Related Questions
Face Scanning Security System - Biometric Computer Security Systems Finally, face scanning security system are also one of biometric technologies. Generally, the principle of

Machine Centred versus human Centred The discussion here is based on the difference in approach to the design of the work system when we prioritise either the needs of the mac

Describe the essential properties of the Distributed Operating System Essential properties of Distributed operating systems: Sharing resources Calculation speed-up

A macro definition consists of ? Ans. A macro Definition have: A macro prototype statement, one or various model statements and also Macro pre-processor statements

Basic elements of  Assembly language: Any Assembly language which consists 3 types of instruction statements that are used to define the program operations: Data secti

Why SRAM are said to be volatile? Because their contents are lost when power is interrupted. So SRAM are said to be volatile.

CGI stands for Common Gateway Interface, and is a mechanism by which a browser is permitted to communicate with programs running on a server. If you look at every word in turn it m

Explanation:- Common used functions are placed in libraries. These are located in the SQABas32 subdirectory of the Robot working directory. A library is separated into three fil

Considering the fact that a lot of research has been done concerning e-commerce, what has been brought in this work is that there has been a lot of facts, studies, and experiments.

Q Write a menu driven program to perform subtraction in base 5 using r and (r-1) complement with necessary validations.