Skip to main content

Stretch the dynamic range of the given 8-bit grayscale image using MATL...

Post a Comment

How not to normalize the data in patternnet function and how to do K-fold cross validation technique?

 I want to do classification using ANN 'patternnent' function. I am new to ANN. I have already normalised data and also divided into train and test dataset. Further, I want to divide train data into three equal parts and perform cross-validation technique, later I want to apply the best model on test dataset to calculate the accuracy. I am unable to understand how to use the 'patternnet' and other functions and complete the task the way I want. Could you please help me out? Thank you.



ANSWER



Matlabsolutions.com provide latest MatLab Homework Help,MatLab Assignment Help for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research.

The optimal approach is to learn the best way to take advantage of existing MATLAB functions and structure. Although it is not necessarily the approach that you proposed, it is no less valid.
 
For example, by default, MATLAB NN design functions automatically
 
 
 
 1. Normalize input and target data   

 2. Divide the data into training, validation and test subsets.

 3. Initialize default parameter settings including random initial 
    weights

 4. Train the net until one of several conditions occur. For example
    a. Training subset error is reduced to a specified level
    b. Validation subset error increases continually for a 
       specified number (default = 6) of epochs
    c. A maximum number (default = 1000) of epochs is reached.

5. Use the target normalization parameters to 
unnormalize the output data

6. Calculate the performance measure

Simple examples are given in the help and doc documentation examples obtained using the commands

 help patternnet

and....

SEE COMPLETE ANSWER CLICK THE LINK

Comments

Post a Comment

Popular posts from this blog

https://journals.worldnomads.com/scholarships/story/70330/Worldwide/Dat-shares-his-photos-from-Bhutan https://www.blogger.com/comment.g?blogID=441349916452722960&postID=9118208214656837886&page=2&token=1554200958385 https://todaysinspiration.blogspot.com/2016/08/lp-have-look-at-this-this-is-from.html?showComment=1554201056566#c578424769512920148 https://behaviorpsych.blogspot.com/p/goal-bank.html?showComment=1554201200695 https://billlumaye.blogspot.com/2012/10/tagg-romney-drops-by-bill-show.html?showComment=1550657710334#c7928008051819098612 http://blog.phdays.com/2014/07/review-of-waf-bypass-tasks.html?showComment=1554201301305#c6351671948289526101 http://www.readyshelby.org/blog/gifts-of-preparedness/#comment_form http://www.hanabilkova.svet-stranek.cz/nakup/ http://www.23hq.com/shailendrasingh/photo/21681053 http://blogs.stlawu.edu/jbpcultureandmedia/2013/11/18/blog-entry-10-guns-as-free-speech/comment-page-1443/#comment-198345 https://journals.worldnomads.com
6 comments
Read more

USING MACHINE LEARNING CLASSIFICATION ALGORITHMS FOR DETECTING SPAM AND NON-SPAM EMAILS

    ABSTRACT We know the increasing volume of unwanted volume of emails as spam. As per statistical analysis 40% of all messages are spam which about 15.4 billion email for every day and that cost web clients about $355 million every year. Spammers to use a few dubious techniques to defeat the filtering strategies like utilizing irregular sender addresses or potentially add irregular characters to the start or the finish of the message subject line. A particular calculation is at that point used to take in the order rules from these email messages. Machine learning has been contemplated and there are loads of calculations can be used in email filtering. To classify these mails as spam and non-spam mails implementation of machine learning algorithm  such as KNN, SVM, Bayesian classification  and ANN  to develop better filtering tool.   Contents ABSTRACT 2 1. INTRODUCTION 4 1.1 Objective : 5 2. Literature Review 5 2.1. Existing Machine learning technique. 6 2.2 Existing
Post a Comment
Read more

Why are Fourier series important? Are there any real life applications of Fourier series?

A  Fourier series  is a way of representing a periodic function as a (possibly infinite) sum of sine and cosine functions. It is analogous to a Taylor series, which represents functions as possibly infinite sums of monomial terms. A sawtooth wave represented by a successively larger sum of trigonometric terms. For functions that are not periodic, the Fourier series is replaced by the Fourier transform. For functions of two variables that are periodic in both variables, the trigonometric basis in the Fourier series is replaced by the spherical harmonics. The Fourier series, as well as its generalizations, are essential throughout the physical sciences since the trigonometric functions are eigenfunctions of the Laplacian, which appears in many physical equations. Real-life applications: Signal Processing . It may be the best application of Fourier analysis. Approximation Theory . We use Fourier series to write a function as a trigonometric polynomial. Control Theory . The F
3 comments
Read more