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How to find word error rate of spoken sentence for regression based model?
Word Error Rate (WER) is a widely used metric for evaluating Automatic Speech Recognition (ASR). To calculate WER for a visual s...

2年以上前 | 0

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Minimum Redundancy Maximum Relevance (MRMR) Algorithm for feature selection of regression models
In short, For classification, fscmrmr was introduced in R2019b. https://www.mathworks.com/help/stats/fscmrmr.html For regress...

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In the classification learner, is Ensemble Bagged Tree the same as randon forest?
The short answer is "Yes". In Classification Learner, the Ensemble Bagged Trees is the same as random forest. This can be seen i...

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Why is my accuracy of trained classifier using function generated from classification learner is less than the model directly exported from the classification learner app?
Based on what you sent, it looks like the short answer is that the model exported from Classification Learner was trained on all...

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How can I use the trained model in Matlab classification learner in an application developed in Visual Studio?
This is possible with MATLAB Coder. See https://www.mathworks.com/help/stats/code-generation.html If this answer helps you, ...

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What do the "scores" mean that result from application of a model from the Classification Learner App to new data?
I'll assume you are following the workflow here: https://www.mathworks.com/help/stats/export-classification-model-for-use-with-n...

2年以上前 | 0

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Need help designing an App for my trained neural network
I recommend App Building Onramp | Self-Paced Online Courses - MATLAB & Simulink (mathworks.com). I also recommend these two an...

2年以上前 | 0

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need help developing an app to use a trained regression model
It looks like the input feature data (variable "t") is not being constructed correctly. Was the neural network trained on a ta...

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Regrssion Learner App 2021a not working - start session grayed out
See https://www.mathworks.com/support/bugreports/details/2451532 This was fixed in R2021a update 2.

2年以上前 | 0

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Classifier learner app is not working in MATLAB 2021a?
See https://www.mathworks.com/support/bugreports/details/2451532 This was fixed in R2021a update 2.

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How to improve prediction accuracy of ANN?
Some thoughts: (1) The data set is very small ("close to 40 rows of data"). With such a small training set, try some small neur...

2年以上前 | 1

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How to generate code of Machine Learning functions for real-time application?
See https://www.mathworks.com/help/stats/code-generation.html Native Simulink blocks for model prediction have been develope...

2年以上前 | 0

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Find original data point from classification learner scatter plot
In the R2023b release of Classification Learner, the row of the dataset can be determined from one of the "Select Query Point" s...

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How to draw an SVM regression plot
The doc page https://www.mathworks.com/help/stats/support-vector-machines-for-binary-classification.html has several examples ...

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MFCC code
https://www.mathworks.com/help/audio/ref/mfcc.html introduced in 2018a

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Related to MFCCs - Getting better results by choosing wrong sampling rate.
What is the task? What type of classification is being done? Are you performing training and testing of your model, or just test...

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Error using classreg.learning.Linear.prepareDataCR X and Y do not have the same number of observations.
The error message "X and Y do not have the same number of observations" indicates that, on line 39, which is mdl = fitrlinear(...

2年以上前 | 0

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ROC curve for Multicalss classification??
See https://www.mathworks.com/help/stats/performance-curves.html and https://www.mathworks.com/help/stats/rocmetrics.html Some...

2年以上前 | 0

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Precision-Recall curve for Multiclass classification
Given a multiclass classification problem, you can create a Precision-Recall curve for each class by considering the one-vs-all ...

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How to apply Explainable AI on user defined classification models (without using inbuilt classifiers)?
You can use the MATLAB explainable AI functions shapley, lime, and partialDependence while specifying the model using a function...

2年以上前 | 0

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hyperparameter tuning with fitclinear
The short answer is yes. That is, the code you shared is doing "nested cross-validation" because the hyperparameter optimization...

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hello all, i am a begginer in matlab , pls help me to do multilabel classification or multiclass svm ?
For binary SVM classification, use fitcsvm https://www.mathworks.com/help/stats/fitcsvm.html . If you have more than 2 classes,...

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LibSVM High-Dimension Training Matrix
You indicate that you have a 7-class multiclass classification problem, and you want to use SVM classifiers, so use https://www....

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Does Matlab provide online linear fitting?
There are many ways to perform linear fitting in MATLAB. This page lists some of the methods: https://www.mathworks.com/help/mat...

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bayes classifier
See the description and examples at these MATLAB doc pages: https://www.mathworks.com/help/stats/fitcnb.html, "Train multiclass...

2年以上前 | 0

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Can we consider regression tree (fine/ medium/coarse) present in regression learner app as classification and regression tree (CART)?
The short answer is yes. Quoting from https://www.mathworks.com/help/stats/choose-regression-model-options.html, "The Regressi...

2年以上前 | 0

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I need MATLAB code to export FDR, PPV numbers.
See number (2) at the answer at https://www.mathworks.com/matlabcentral/answers/321904-how-to-export-performance-measures-from-t...

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How to export performance measures from the Classificaiton Learner App?
(1) Starting in 2022b, you can export results from Classification Learner using the Results Table. This will provide accuracy, m...

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How can I increase classifier accuracy?
Voice disorder classification is an active area of research. There are many papers on the topic. The paper "Voice disorder clas...

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How do i use my optimized gpr model and neural network to make predictions in app designer using user input data
These two answers explain how to make predictions in app designer with models trained in regression learner or classification le...

2年以上前 | 0