Question

How does Matlab's simulannealbnd enforce bound constraints?

Hello I'm using the simulannealbnd Function of Matlab for finding the minimum of a function using simulated annealing. As arg...

7 years ago | 1 answer | 0

Question

Prediction of SVM with custom kernel extremely slow

I'm using the Matlab function [fitcsvm][1] for training a SVM with a RBF kernel. I'm using the following calls: SVMModel = ...

8 years ago | 0 answers | 1

Question

How to choose values log-uniformly in Matlab?

Hello I have read a text in which a discrete value is chosen at random log-uniformly between 128 and 4000 and a second contin...

8 years ago | 1 answer | 0

Question

How can I compute kernels?

Hello I want to calculate weighted kernels (for using in a SVM classifier) in Matlab but I'm currently compeletely confused. ...

8 years ago | 1 answer | 0

Question

Optimization with continuous/integer parameters and constraints

Hello I'm using different classifiers to solve a classification problem which consists of two classes. Of course I have to tu...

8 years ago | 1 answer | 0

Question

Nelder-Mead optimization with equality constraints

Hello I would like to use the function <http://ch.mathworks.com/help/matlab/ref/fminsearch.html fminsearch> of matlab to sear...

8 years ago | 1 answer | 0

Question

How to pass parameters to a custom kernel function in fitcsvm?

Hello I'm using the <http://ch.mathworks.com/help/stats/fitcsvm.html?refresh=true fitcsvm> method of Matlab for training a SV...

8 years ago | 0 answers | 0

Question

Assigning a new data point to a cluster in hierarchical clustering

Hello I have clustered my data X with hierarchical clustering in the following way: Y = pdist(X); Z = linkage(Y); ...

8 years ago | 1 answer | 0

Question

Application (Java + Matlab) uses too much memory only on cluster

Hello I have written a Java application which uses 8 Threads. The application is using matlabcontrol (matconsolectl) to open ...

8 years ago | 0 answers | 0

Question

Why is Matlab filling my disk?

Hello I have developed a System consisting of a Java and Matlab application. The Java application instantiates and uses 8 Mat...

8 years ago | 0 answers | 1

Question

MaxIter and MaxFunEvals options for fitdist

Hello I'm using <http://ch.mathworks.com/help/stats/fitdist.html fitdist> to fit distributions to my dataset. Sometimes I'm g...

8 years ago | 0 answers | 0

Question

How to get handle of corrplot?

Hello I'm using <http://ch.mathworks.com/help/econ/corrplot.html corrplot> for creating a correlation plot of my data. This w...

8 years ago | 2 answers | 0

Question

Fitting probability distributions to the data (allfitdist)

Hello I have found the amazing script <http://www.mathworks.com/matlabcentral/fileexchange/34943-fit-all-valid-parametric-pro...

8 years ago | 1 answer | 1

Question

Automatically fitting distribution to histogram

Hello I have a histogram plot of one feature (machine learning). That mean on the x-axis I have several value the feature can...

8 years ago | 1 answer | 1

Question

Plotting machine learning features with Matlab

Hello I have a dataset consisting of 10 features and 10000 data points. The columns of my matrix are the features, the rows a...

8 years ago | 1 answer | 0

Question

How to debug with Matlabcontrol?

Hello I'm using Matlabcontrol to execute Matlab scripts from Java. This works fine but there is a problem with debugging. Whe...

8 years ago | 0 answers | 0

Question

How to create random 2D data for testing classifier?

Hello I would like to create random 2D data for playing around with classifiers. The result should be a (nx2) matrix where th...

8 years ago | 0 answers | 0

Question

Machine Learning LIbrary for Java and Matlab

Hello Is there a good machine learning library which has an interface to Java and Matlab? By the way, would you use Matlab...

8 years ago | 1 answer | 0

Question

How to apply PCA correctly?

Hello I'm currently struggling with PCA and Matlab. Let's say we have a data matrix X and a response y (classification task)....

8 years ago | 3 answers | 2

Question

How to create subplots with little vertical spacing?

Hello I want to do a figure in Matlab consisting of a grid of images (subplots). I have used the <http://www.mathworks.com/ma...

8 years ago | 3 answers | 1

Question

How to do wavelet decomposition and hierarchical clustering in Matlab?

Hello I want to apply a wavelet decomposition on a vector x using Matlab wpdec function. *How can I retrieve from this the ap...

8 years ago | 0 answers | 0

Question

How to bandpass filter an 4D image in Matlab?

Hello I have implemented in Matlab a bandpass filter. The script is in the attachment. I have now applied the filter to a ...

8 years ago | 0 answers | 0

Question

How do I use weight vector of SVM and logistic regression for feature importance?

I have trained a SVM and logistic regression classifier on my dataset for binary classification. Both classifier provide a w...

8 years ago | 0 answers | 0

Question

Why different result with PCA and SVD in Matlab?

Hello I have implemented my PCA function in Matlab in the following way: function e = myPCA(X) [D, N] = size(X); ...

8 years ago | 0 answers | 0

Question

Applying z-score before scaling to [0,1]?

Hello I'm currently using neural network for classification of a dataset. Of course before doing classification either the da...

8 years ago | 2 answers | 0

Question

How to capture USR2 signal?

Hello I'm running some Matlab scripts on a cluster (on several nodes). In the cluster wiki I have read the following: "To ...

8 years ago | 0 answers | 0

Question

How to find clusters in binary 3D image?

Hello I have a binary 3D image, i.e. it contains only 0 and 1. Now I want to find all clusters of 1s (i.e. clusters of voxels...

8 years ago | 1 answer | 0

Question

libSVM for multiclass classification in Matlab

Hello I want to use libSVM with Matlab for a classification problem with 4 classes. 1. I think libSVM does not support one...

8 years ago | 1 answer | 0

Question

Parameter selection of SVM

Hi I have a dataset which I use for classifcation with libSVM in Matlab. The dataset consists of 4 classes. For parameter ...

8 years ago | 0 answers | 0

Question

Gaussian Naive Bayes classification

I have found the following Matlab implementation of a Naive Bayes classifier: https://github.com/jjedele/Naive-Bayes-Clas...

8 years ago | 0 answers | 0