Information gain, Computer Engineering

Assignment Help:

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


Related Discussions:- Information gain

Design the communication protocol, Design, write, and implement distributed...

Design, write, and implement distributed networked application using Java Design the communication protocol (message format and exchange procedure) that your application will re

Where the grade of service is measured, The grade of service is measured in...

The grade of service is measured in (A) Percentage                                  (B)  Number (C)  Fractional Number                    (D)  Logarithmic Number  Ans

Define buffering, Define buffering.  A buffer is a memory area that kee...

Define buffering.  A buffer is a memory area that keeps data while they are transferred among two devices or among a device and an application. Buffering is done for three reas

Floating point format, consider the 8 bit floating point format including s...

consider the 8 bit floating point format including support for normalised nimbers and nonnumeric values.it included 3 bits for mantissa and 4 bitys for excess 7 exponent

Define input-output interface, Define Input-Output Interface. I/O inter...

Define Input-Output Interface. I/O interface gives a method for transferring information among internal storage and external I/O devices

Problem specification - logic programs, Problem Specification : Hence ...

Problem Specification : Hence given the above context for "ILP" there we can state the learning problem as follows: that we are given a set of positive and a set of negative e

Print a prompt, When your shell is waiting for input from the user, it shou...

When your shell is waiting for input from the user, it should first print a prompt. The prompt should consist of the current working directory followed by the _>_ character. Here i

Explain naming convention verification points, Explanation:- In functio...

Explanation:- In functional testing, you require to confirm that the objects in the application-under-test look and work as designed from build to build. To accomplish this, yo

What is a kernel shell, A shell is a program that presents an interface to ...

A shell is a program that presents an interface to several operating system functions and services. The shell is so called because it is an outer layer of interface among the user

Advantages and drawbacks of mealy and moore machine, What are the advantage...

What are the advantages and drawbacks of mealy and moore machine? Advantages and drawbacks: Into Mealy as the output variable is a function both state and input, changes o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd