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Bernhard Suhm


MathWorks

79 total contributions since 2017

Bernhard Suhm's Badges

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Answered
How to check after completing the Image Processing Machine Learning program.
Your code isn't complete - it references custom functions you (or your teacher) defined somewhere else such as trainImageCategor...

1 month ago | 0

Answered
Is it possible to combine two neural networks in MATLAB?
MATLAB has an AdditionLayer that allows you to combine outputs of two separate strands in your deep learning network. With R2018...

1 month ago | 3

Answered
How can I use the PCA function to find the principle components of a variable?
You'll get the loadings for your variables. But think about whether applying PCA this way to your data makes sense. We'll expect...

1 month ago | 0

Answered
Can someone tell me if there is an error in fitcdiscr function?
LDA fits normal distributions with the same covariance. QDA allows different covariances. Fitting normal distributions including...

1 month ago | 0

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Answered
Display bug with confusionchart for percentages summary
Many machine learning related charts will start to show some weird behavior if you try to visualize a lot of classes. If you are...

2 months ago | 0

| accepted

Answered
Long time to process - fit copula model
Sounds like you need to bring some parallelization to bear. If your computer had multiple cores, you could leverage them if you ...

2 months ago | 0

| accepted

Answered
question about determining the correct number of clusters (documentation)
You can use the silhouette plot or evalclusters function to evaluate the quality of your clustering. There's a little more info ...

2 months ago | 0

Answered
Help, how can get result of classification using SVM with csv files ?
Use csvread to read those files into an array or table, train (or "fit") an SVM model on the trainings set using fitcsvm, and th...

2 months ago | 0

Answered
question about k-means clustering metric choice
If you have any further questions, follow up. Otherwise, can you kindly "accept" Walter's answer?

2 months ago | 0

Answered
How can I use random forest classifier with an excel file?
Something like this: data = xlsread('filename'); mdl = fitcensemble(data,'class');

2 months ago | 0

Answered
How Can I Configure "the Trial License" for Cloud Use?
You can't cloud-enable a trial "license". You need to request a cloud-enabled trial, which is just become available at <https://...

2 months ago | 0

Answered
Feature Selection PCA in Haar for face recognition
Well, you could try whether PCA finds a linear mapping among the 16 Haar wavelets that expresses most of the variability in your...

3 months ago | 0

Answered
How to utilize GPU while the classifiers were running on the classification learner application?
<https://www.mathworks.com/help/stats/statistics-and-machine-learning-toolbox-functions-with-gpuarray-arguments.html This page> ...

3 months ago | 1

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Answered
How to use a KNN classifier from Matlab in c++
Little late, but with MATLAB Coder you can convert a prediction function for KNN to C/C++ code, and then use that with your othe...

3 months ago | 0

Answered
Is there any way to port the predict process of a machine learning model to C/C++ codes
Little late, but since 2017, with MATLAB Coder you can generate C/C++ code for your machine learning prediction function.

3 months ago | 0

Answered
Can I plot/apply more than two predictors using classification learner app?
It's for plotting only, a simple 2-dimensional scatter plot is available in the Classification Learner. You can train classifier...

3 months ago | 0

Submitted


Heart Sound Classifier
Heart Sound Classification demo as explained in the Machine Learning eBook update

3 months ago | 226 downloads |

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Answered
Clustering with big data
Maybe you are using the LINKAGE function incorrectly. You already has the pairwise distances, but for some reason the LINKAGE fu...

4 months ago | 0

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Answered
Finding Pattern in the data set
You are asking a very basic question, like "tell me how to apply data analytics", which is why the comment pointed you to the mo...

6 months ago | 0

Answered
Machine learning: Ensemble trees in a time series classification problem.
How are you encoding the time dependency in your predictors? If you add predictors that look back fixed number of elements in yo...

6 months ago | 0

Answered
not getting same accuracy as classifier app
The model trained inside the Learner app doesn't exactly match the exported model because the latter will be trained on the comp...

6 months ago | 0

Answered
Is there a way to parallelize the function hygepdf?
I am not an expert for the Parallel Computing toolbox, but if the calculation inside the for loop body is fairly simple (as it l...

6 months ago | 0

Answered
Classification Learner App - generate a more generic function for your model training that could take varying size of prediction tables? One step beyond the default function generation
But if your table has fewer columns (predictors) typically you need to retrain the model, or at least have performance deteriora...

6 months ago | 0

Question


Problems trying to set iOS and get Human Activity Recognition example deployed on iPhone
I'm following the Human Activity Recognition Simulink example in doc in a MacBook. I successfully installed the Simulink support...

6 months ago | 0 answers | 0

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answers

Answered
How can I classify columns of a table
You could try to train a classifier by considering each data point of your table an example for the corresponding column's name ...

7 months ago | 0

Answered
How to provide parameters in fitrensemble
The parameters 'MinLeafSize', and 'MaxNumSplits' are available for optimization, see <https://www.mathworks.com/help/stats/fitre...

7 months ago | 0

Answered
Is the function TreeBagger(NumTrees,Tbl,ResponseVarName) with NumTrees = 300 considered as random forest ?
TreeBagger grows a forest of trees, but that's a random forest not just with 300 of them.

7 months ago | 0

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Answered
How to use classification learner for real time data (from serial port) for classification?
You can find an example how to read data from a serial device <https://www.mathworks.com/help/supportpkg/raspberrypiio/ref/raspi...

7 months ago | 0

Answered
How to prioritize the cluster on the basis of number of data points in each cluster?
If X was your data, you could get the histogram with h = histogram(X); and then compare the centroids of your clusters ...

7 months ago | 1

| accepted

Answered
How can I mark several features in an image with 'insertMarker' and save the image at full resolution?
That looks like you are on the right track, and should work if pos corresponds to a vector of (x y) positions for the markers. W...

7 months ago | 0

| accepted

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