Bernhard Suhm

MathWorks

Last seen: plus de 2 ans il y a | Actif depuis 2017

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automated feature generation with matlab?
This sounds like a good use case for applying our new AutoML capabilities. Wavelet scattering generates features automatically f...

plus de 3 ans il y a | 0

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I want to use Aspentech IP.21 data to hourly perform advanced calculations for losses in cooling. How to best do it?
You can try this Aspen Plus - MATLAB connector that someone posted on File Exchange, but isn't officially supported by MathWorks...

plus de 3 ans il y a | 0

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Are GAMs supported by statistics toolbox?
With the recent R2021a release, support for GAM has been added to the Statistics and Machine Learning toolbox. See GAM for class...

plus de 3 ans il y a | 0

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Classification learner - identify false prediction indexes
Unfortunately, that isn't supported directly in the Classification Learner. But you can export your trained model to the MATLAB ...

plus de 5 ans il y a | 0

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Principal Component for Shape Analysis.
Per documentation of pca, your "Mode" are " .. the representations of X in the principal component space. Rows of scorecvorrespo...

plus de 5 ans il y a | 0

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precision recall curve from Bag of Visual words classifier
You need to systematically vary the threshold (or related parameter) determining whether you accept or reject the detection. You...

plus de 5 ans il y a | 1

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Why identical outputs despite different inputs to a machine learning models
Of course it could predict the same category for different kinds of inputs, especially if there aren't a lot of categories... Or...

plus de 5 ans il y a | 0

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Sequentialfs, the squential feature selection function of matlab
You determine which model it uses by how you define the function fun that calculates a criterion based on training and test data...

plus de 5 ans il y a | 0

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Adding a machine learning algorithm
The Learner Apps are targeted at casual users, empowering them to train classification and regression models without writing cod...

presque 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 3

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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...

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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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 ...

environ 6 ans il y a | 0

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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 ...

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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

environ 6 ans il y a | 0

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

environ 6 ans il y a | 0

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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://...

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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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> ...

environ 6 ans il y a | 1

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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...

environ 6 ans il y a | 0

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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.

environ 6 ans il y a | 0

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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...

environ 6 ans il y a | 0

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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...

plus de 6 ans il y a | 0

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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...

plus de 6 ans il y a | 0

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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...

plus de 6 ans il y a | 0

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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...

plus de 6 ans il y a | 1

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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...

plus de 6 ans il y a | 0

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