Manas Ranjan Prusty

22 Questions 20 Answers 0 Followers

Questions related from Manas Ranjan Prusty

How do In compare two or more classifier's performance using area under the roc curve (AUC) for multi class classification?

I have a 4-class problem with 5different classifiers. I want to find the best classifier among these 5 classifiers based on the area under the roc curve (AUC) concept. I have AUC of each of the 4...

05 May 2015 795 7 View

Is there any way to calculate the voulume under the roc surface (VUS) for multiclass classification

I have a multi class classification problem for various classifiers. I want to check which one is better among these classifier in total. I read some where that volume under the roc surface would...

05 May 2015 2,705 1 View

Is it possible to call a function from MATLAB using Visual Basic or GLG?

I want to call a matlab function from a graphical user interface developed using VB or GLG. This .m file could be a matlab library function or user-defined function Is this possible?If yes, please...

03 March 2015 464 3 View

Can we select the data file in .txt form to be uploaded from my pc using MATLAB GUIDE?

I want to develop a GUI using matlab guide where there is a provision to upload data file from the pc where the program or code is running. This is like online uploading the data rather than...

01 January 2015 7,060 3 View

How can I analyse some datasets using svm or neural nets, is it advisable to always write ones own code or are packages also good?

In-built packages are available in MATLAB for support vector machine and neural networks implementation. How can I analyze and test data sets? Can I use these packages or do I have to write...

01 January 2015 883 8 View

What does ten times ten-fold cross validation of data set mean and its importance?

It is said that we should go for a ten times ten-fold cross validation. What does this mean and how is this done? What is the actual need of doing so?

01 January 2015 683 8 View

How to counteract with the problem of ''OUT OF MEMORY" in MATLAB for PCA?

I am trying to analyse a Principal component analysis of a data set. But when I trying to take columns more than 5 as principal components, matlab throws an error saying 'out of memory'. How to...

11 November 2014 6,612 6 View

How to classify different trend of events happening online based on the database of the trends previously used for training?

I would like to explain this question with an example. It is bit lengthy but please bear with me. Let say, I have 3 events and each have a specific trend of time dependent data for a particular...

10 October 2014 3,237 1 View

What are the techniques used to transform a data to a higher dimension?

I want to classify some time series events. Due to the occurrence of an event, particular parameter continuously changes w.r.t time. This changing trend of the parameter is different for different...

10 October 2014 5,751 4 View

In order to generalize the output of a classifier, is it necessary to run the 10-fold cross validation for more than once?

I have a dataset and I want to classify it. Is it necessary to run the 10-fold cross validation technique for more than once in order to generalize my accuracy?

09 September 2014 9,008 4 View

How do you do an offline trend checking using MATLAB?

I have a standard set of sequential time based data which shows the trend of some events individually. I want to compare these data and check it with another new set of sequential time based data...

09 September 2014 4,983 4 View

Can we say k-nearest neighbor algorithm as a machine learning algorithm?

K-nearest neighbor is a instance based learning or lazy learning algorithm. Does it any way convinces us to accept it as a machine learning algorithm? Is there any paper which strongly recommends...

09 September 2014 2,267 1 View

Is the simple accuracy on correct classification necessary for the statistical analysis like Wilcoxon sum rank test and t-test ?

I am working on classification based problems using various supervised machine learning algorithms. I have found out simple accuracy based on correct classification. Is it necessary to go for...

09 September 2014 9,002 3 View

Does increasing the number of neurons in a 2-layered neural network anyway help in classification problems?

I aim at solving a classification problem using two-layered neural network with back propagation algorithm. Will my accuracy increase if I increase the no of neurons in the hidden layer of this...

09 September 2014 8,797 7 View

What are the expansion of ROC and AUS which are related to classification meeasures

I am working on classification based problem using machine learning. I came across two abbreviation ROC and AUS which are said to be classification measures. What are the expansion of these and...

09 September 2014 1,352 1 View

What is the pseudo code for svm and ann algorithm?

In writing the pseudo code for support vector machine and artificial neural network, what are the steps we should mention?

09 September 2014 7,884 7 View

What is the practical importance of finding the eigenvalues of the co-variance matrix in principal component analysis?

In PCA, based on the eigen values of the covariance matrix of the dataset, it is decided as to which column/variable is of importance. I want to know what is the real and practical use of finding...

09 September 2014 3,934 8 View

What are free and user friendly softwares for time series analysis and pattern recognition?

I am working on online time based event identification and pattern recognition. I am in a juvenile stage in my field. I wanted to know about any free available softwares which is very user...

08 August 2014 7,706 7 View

Is there a free software that shows a graph which plots online time data?

I want to know that which is the best software easily interface-able for visualizing online time series data. This graph plots values on the same graph each cycle time. It is like an online...

08 August 2014 9,804 3 View

What is SAPS-II toolbox and how to work with SAPS-II toolbox in MATLAB?

I wanted to work on fuzzy inductive reasoning(FIR) and its written that SAPS-II toolbox is easier to work with for FIR. It is also said that this can be worked using MATLAB. But I am not able to...

04 April 2014 1,291 1 View

What is the best tool to work on fuzzy rule base system other than MATLAB?

I am interested to work on fuzzy logic based temporal rules. So wanted to know about tools using which I can do this.

02 February 2014 6,384 1 View

How can we handle data which are time dependent for classification using fuzzy rule base system?

I am having some events which are time dependent. For example, a malfunctioning of a component caused substantial change in some parameters and that may lead to another event after a certain...

02 February 2014 6,483 2 View