Avoiding over fitting in decision trees, Computer Engineering

Assignment Help:

Avoiding Over fitting - Artificial intelligence

As  we  discussed  in  the last  lecture,  over fitting  is  a  normal  problem  in machine learning. Decision trees suffer from that, because they are skilled to stop when  they  have  completely  classify  all  the  training  data,  i.e.,  every  branch  is complete  just  far sufficient to  suitably  categories  the  examples important to  the branch. Various ways to overcoming over fitting in decision trees have been used. As summarized by Tom Mitchell, these attempts fit into two types:

·       Stop growing the tree before it reaches excellence.

  • Allow the tree to complete grow, and then post-prune some of the branches from it.

The second approach has been found to be more useable in practice. Both methods boil down to the question of shaping the right tree size. See Chapter 3 of Tom Mitchell's book for more detailed explanation of over fitting  prevention in decision tree knowledge.

 


Related Discussions:- Avoiding over fitting in decision trees

Define alphabet and string, Define Alphabet and String? A finite set of...

Define Alphabet and String? A finite set of symbols is termed as alphabet. An alphabet is frequently signified by sigma, yet can be specified any name. B = {0, 1} here B is

Explain the methods of implementing interacting processes, Explain any two ...

Explain any two methods of implementing interacting processes. Two methods of implementing interacting process are given below: (i) Shared memory solution: In this scheme

Pre-os and runtime sub-os functionality, In a raw Itanium, a "Processor Abs...

In a raw Itanium, a "Processor Abstraction Layer" (PAL) is integrated into the system. When it is booted the PAL is loaded into the CPU and gives a low-level interface that abstrac

Explain virtual address, What is virtual address? The binary address th...

What is virtual address? The binary address that the processor used for either instruction or data known as virtual address.

Implementation using 8 to 1 multiplexer, Implement the following function u...

Implement the following function using 8 to 1 multiplexer Y(A, B, C, D) = ∑(0,1,2,5,9,11,13,15) Ans. We will obtain three variables B,C and D at selection lines and also A as i

Define the term package- object oriented modeling, Define the term package-...

Define the term package- object oriented modeling A package is a common purpose mechanism for organising elements into groups. Package can also contain other packages. The no

Reduced instruction set computer - risc, Reduced Instruction Set Computer (...

Reduced Instruction Set Computer (RISC): As we discussed before most of the modern CPUs are of the GPR (General Purpose Register) type. A few instances of such type of CPUs ar

State the term- interviewing, State the term- Interviewing This involv...

State the term- Interviewing This involves a one to one question & answer session between analyst and customer/employee. A good method if analyst wants to probe deeply into on

Generates sequence code, The basic project will have each group generate a ...

The basic project will have each group generate a sequence of 1's and 0's using  the Motorola 688HC11 board to turn ON and then turn OFF the TV set installed in ATRC 306. Each tele

Do we require an x server to run in batch mode for gimp, Yes, you have to h...

Yes, you have to have some form of X server (unless you're running Windows, of course). It requires an X server for image processing, and for font manipulation. Though, if you wish

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